#Oil Sealed Rotary SCREW Type Vacuum Pump

[atlascopcouae]

Atlas Copco's vacuum pump UAE range includes single stage rotary vane vacuum pumps, 2 stage rotary vane vacuum pumps and oil sealed rotary vane vacuum pumps with VSD technology

[yoyik456]

China Manufacturer Large end cap assembly DG600-240-04-19-00 for steam turbine

China Manufacturer Large end cap assembly DG600-240-04-19-00 for steam turbine Deyang YOYIK is a strong technical force, first-class product quality, brand reputable large-scale mechanical and electrical equipment Limited. Company products covered a wide range of products sold worldwide, a number of users trust. Acting foreign first-class brand, EATON VICKERS, star, and so on products. Guarantee genuine, the spot sale. Yoyik can offer many spare parts for power plants as below: #DF-Large end cap assembly DG600-240-04-19-00-DF pressure hose SMS-10/20-610mm-C screw pump diagram HSNS210-54NZ OPC solenoid valve 4WE10D-L3X/CW220-50NZ5L/V seals (cylinder diaphragm, packing, valve sealing gasket) 0125ZMAW16BQ13UNOERHDN125 roots vacuum pump KZ/100WS radial piston pump PV2R3-76-RBAF1 switch valve M765-004000A screw pump working principle 3GR42*4A oil pump replacement 80SG50-30 double mechanical seal 15F4-IC-20 hydraulic power 300S90B Hydraulic hose 35MPa, 20mm chemical pump centrifugal 65-250B soft coupler suction DN800, PN1.0MPa, OD1019mm, ID950mm, Distance between 2 Flanger: 320mm. mechanical seals LTJ-GJ-125A/R servo valve J761-001 HP ball valve BKH20-FPM-1.4571 Lubrication Oil Pump 150LY-32-B butterfly valve K65DSF4PB3 oil station globe check valve J20C-1.6P hydraulic screw pump ACF080K41RBP mechanical seal 41 mm 90NY/JXMF motor universal coupling 125LY-35-2 safety valve 3.5A25F-16P chemical pump centrifugal DFB80-80-240 piston pump hydraulic MOOG0514 7005 37 butterfly valve K150D0F4PB3 Governor O-ring DH00.010 vacuum pump compressor PVH098R01AJ30A250000002 ac vacuum pump P-1937A oil transfer electric pump SDNH440REM3NW53 sealing ring HB4-56J8-19 Packing B05-8076Z-06TS rotary piston pump PV29-2R5D-C00 screw pump manufacturer ACF090N4 electric transfer oil pump DLZB820-R64B Large end cap assembly DG600-240-04-19-00 vacuum pump valve spring P-540 hydraulic actuator solenoid valve 4WE6H62/EW230N9DL multi stage centrifugal pump YCZ50-25 piston pump hydraulic PVH141R13AF30A230000002001AB01A axial piston variable pump A10VS071DRS/32R-VPB22U99 mechanical seal types LTJ-GJ-125A/R shaft coupling 65-250B liquid ring vacuum pump 2S-185A AST SOLENOID VALVES G1211177 Fluoro Rubber O-Ring ORO250023 generator self-lock nut M12*3mm fluid transfer pump 50FSB-30 gear oil transfer pump SDH-50 screw pump working HSNH80Q-48NZ vacuum hand pump P-1803 screw pump manufacturer KF090NZ/15F6 pressure hose SMS-12-3048mm-C magnetic coupling centrifugal pump DFB125-80-250-20 centrifugal pump prices ISG150-160 armoured platinum Thermal resistance WZGPK2-33U-M100A150J120A-M212 vacuum pump price 2S-185 hydraulic electric pump 70LY-34*2-1 pressure hose S100-AC-AC-0150 (G1/4)M14*1.5 Pneumatic head diaphragm 125ZMAW16BQ piston vacuum pump PV292R5DC00 transfer oil pump YW100-250 dc screw pump HSNH80Q-48NZ vacum pump air vacuum WS-30 MOOG pump electric vacuum pump 30WS water pump DFB100-80-250-14 pressure hose SMS-12/20-610mm-B HP globe valve 600KG vacuum pump compressor P-1759 OPC solenoid valve HQ16.110Z electric vacuum pump 2S-185 Large end cap assembly DG600-240-04-19-00 DFYLSYC-2024-6-3-A

[qocsuing]

How To Install And Use Mechanical Seals in Vacuum Pumps And Diaphragm Pumps

How To Install And Use Mechanical Seals in Vacuum Pumps And Diaphragm Pumps

1.Requirements about machine precision: (take the mechanical seal of the vacuum pump as an example)Get more news about Vacuum Pump Seals,you can vist our website!

(1) The radial runout tolerance of the shaft (or shaft sleeve) where the mechanical seal is installed shall not exceed 0.04-0.06mm at most.

(2) The axial movement of the rotor does not exceed 0.3mm.

(3) The runout tolerance of the joint position of the sealing cavity and the sealing end cover facing the surface of the shaft (or shaft sleeve) shall not exceed 0.04-0.06mm.

2. Check and confirmation of the mechanical seals:

(1) Check whether the installed mechanical seals are the same as the required models.

(2) Before installation, carefully check with the general assembly drawings to see if the parts are complete.

(3) For mechanical seals driven by parallel springs, they can be divided into left or right handed ones, and must be selected according to rotation directions of the rotating shafts. 3. Installation method of such mechanical seals:

Installation methods vary with types of mechanical seals and types of machines, but installation essentials are almost the same. The installation steps and precautions are as follows:

(1)Determination of installation size: During installation, installation size of the mechanical seal should be guaranteed right according to the product instruction manual or sample book.

(2) Before loading, the shaft (sleeve) and gland should be free of burrs, and the bearing should be in good condition; the seals, shaft, sealing cavity and gland should all be cleaned. In order to reduce frictional resistance, the place where the mechanical seal will be installed on the shaft should be coated with a thin layer of oil for lubrication. If oil is not suitable because of the compatibility of rubber O-rings, soapy water can be applied. The structure of floating stationary seat without anti-rotation pin should not be oiled, and should be installed in the gland dry.

(3) Install the stationary seat of the mechanical seal together with the gland on the shaft first（being careful not to collide them with the shaft）, and then install the rotary face assembly. The set screw of the spring seat or transmission seat should be evenly tightened several times.

[extractorfansblog]

On the other end of the spectrum are mega vacuum pumps

This demands to ensure the total differential pressure across the Booster must not exceed the rated limits. Various types of vacuum pumps are available such as diaphragm, rocking piston, reciprocating piston, liquid ring, rotary-screw, rotary vane and lobed-rotor ones. Many industrial and scientific processes require vacuum-pump applications such as for the production of electric lamps, vacuum tubes, semiconductor processes, lectron microscopy, and medical processes involving suction. This type of pump has a straight through design which ensures they are non-clogging and relatively maintenance free.The heart of any process in industry are the Industrial Fan. Boosters are the pumps which helps to dry that are installed to meet most of the ideal vacuum pump requirements. Because desirable characteristics which make these pumps the most cost effective and power efficient option. Boosters can be coupled with any one of the pumps, to overcome their limitations like to boost the performance of water ring, oil ring, rotating vane, piston pumps and steam or water ejectors.

A single mechanism or a series of mechanisms or parallel mechanisms are employed to achieve the best results according to specific requirements. Typically generating static pressures above 500 mmWG, these type of air movers are mainly used for blowing duties where low volume/ high pressure conditions are required. Large-sized vacuum pumps are meant for continuous pumping. However, smaller pumps have high efficiency; the only difficulty, however, is that they get overheated easily if used continuously. The final option manufacturers can consider is conveying pumps or air amplifiers. This type of vacuum pump provides a reliable and cost effective solution for in-line product transfer. Aero Foil Designs are available on request for extra high efficiencies. Reciprocating piston, diaphragm, rocking piston, and rotary vane pumps can go up to twenty-nine in Hg. These pumps are the largest compressed air driven option available.

Aerospace applications include the use of vacuum source to power gyroscopes in the various flight instruments. This makes it ideal for conveying systems which transfer bulk materials. These fans are mainly of many type like ID Fan, FD Fan, Industrial Blower, Industrial Air Blower, High Pressure Fan, Hot Air Circulation fan, Bag Filter Blower, Dust Collector Blower, Blower, boosters, and Pneumatic Conveying Fan. At the same time they are comparatively compact and lightweight.. Power Constraints restrict the total differential pressures across the vacuum boosters. Vacuum pumps have much lower power requirements than air compressors.

On the other end of the spectrum are mega vacuum pumps. These fans are employed for process air required for Combustion blowing or conveying duties. Rubber and plastic-sealed piston pumps, venture vacuum pump, and scroll pumps are also used. This type of pump is primarily used whenever a larger air volume must be evacuated or when a leakage flow must be compensated for. The impeller or wheel are typically radial or forward tipped, has comparatively China Ventilation Fans Manufacturers lower static efficiencies & have smaller inlet & outlets to allow for lower volume throughputs

[apoorvavalves]

Best Quality Pumps Distributor in India!!!

Are you looking for a Pumps Distributor in India and not able to find the best one? Visit Apoorva Valves and end your search. Apoorva Valves is the best and trusted Pumps Distributor and Pump Stockist India. We provide quality care products to meet the growing demand for pumps. Pumps are an efficient medium to transfer liquids or gas from one container to another and are widely used in heavy industries including oil and gas, pharmaceutical, chemical, food and beverages, and petrochemical to name a few. A variety of pumps are available in the market that is used differently in different applications depending on your requirement. As a Pump Stockist India, we provide pumps of different sizes and forms.

Pumps are widely used in many industries for diverse applications. They are of different types and are designed according to the requirements of different applications. Two main types of pumps are the Positive Displacement Pump, Dynamic Pump. Positive Displacement pumps are further classified into two categories Rotary pumps including Single Rotor Pump(ex. Piston pump, vane pump, screw pump), and Multiple Rotor Pump(ex. Gear pump, Lube pump), Reciprocating Pump including Diaphragm pump, and piston plunger type pump. Also, Dynamic pumps can be classified further as Centrifugal pumps, Axial pumps. Reciprocating pumps are best for high-pressure requirement applications and have high efficiency. Diaphragm pumps are versatile and are used to handle a large number of liquids including pharmaceuticals, dry food powder, additives, chemicals, and wastewater and it does not require any packing or seals. Gear pumps are used to move solids and harsh liquids. For water irrigation, piston pumps are used. Peristaltic pumps are mainly involved in processing food, water, and chemical treatment.

Apoorva Valves is the leading Pumps Distributor in India having a waste variety of pumps such as Vacuum Pumps, Diaphragm Vacuum Pumps & Compressors, Side Channel Vacuum Pumps & Compressors, Oil Lubricated Vacuum Pumps & Compressors, Oil Sealed High Vacuum Pumps, Liquid Ring Vacuum Pumps & Compressors, and many more from topmost manufactures. Our products are acquired by popular consultants viz. .I.L, TDC, P.D.I.L., MOTT MC DONALD, LURGI, MECON, LINDE, and leading Industries and are ISO certified. We have customized our products and services to suit the needs of our customers. We strive for excellence and commitment in everything we do and provide superior customer satisfaction at the most competitive price. Our team of experts puts all the efforts to fulfill the requirements of the customers by providing technical support and assistance.

Apoorva Valves is the best Pumps Distributor providing fantastic service and superb quality pumps!!! Contact us for all your needs!

To know more please visit our website: http://apoorvavalves.com/

Apoorva Valves

Phone: +91 9810057364  

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[tekmantechnology]

Benefits of Liquid Ring Vacuum Pumps

Liquid ring vacuum pumps are increasing in popularity and availability nowadays. These pumps are also referred to as liquid piston rotary pumps and water ring water piston pumps. Why so? Because they utilize liquid as a piston, and water is the most common choice of liquid in these pumps, hence the name. Nowadays, these pumps are widely preferred because they can perform in the harshest environments, and ensure sustainable productivity. Of course, there are also several benefits that they offer.

Looking for Vacuum Pump Manufacturer & Supplier in India? Check out our best Vacuum Pump Manufacturer offer the best quality Industrial, Dry Pump, Dry Screw Pump & Rotary Vane Vacuum Pump

 Understanding How Liquid Ring Vacuum Pumps Work

The liquid ring pump features an impeller, which is positioned eccentrically to the cylindrical housing of the pump, and in between two port plates. In this pump, the vacuum is created using a liquid such as water, water-methanol mixture, and oil. The pump is filled with liquid up to a quarter of its volume. The port plates feature shaped holes, which enable easy discharge and suction of the vacuum pump when it is in action.

When the impeller is in the rotation, the liquid starts moving outwards, and creates a void space. The liquid is turned into motion, and it forms a ring outside, thus, the pump gets its name. The motion of the liquid is initiated by a centrifugal force. The liquid ring is eccentric to the impeller, and concentric to the housing of the pump.

During the rotation of the pump, gases are sucked from the suction or inlet port, then compressed, and discharged through the discharge port. Owing to its large number of blades, the operation of the pump is continuous.

Looking for a Dry Vacuum Pump Manufacturer? Visit our best Dry Vacuum Pump Manufacturer and Supplier in India. We offer the best quality Industrial, Dry Pump, Dry Screw Pump & Rotary Vane Vacuum Pump

 Benefits of Liquid Ring Pumps – On the Basis of Design

As with any other industrial pumps, liquid ring vacuum pumps also have typical advantages owing to their designs. The pumps are classified into three types – Once through System, Partial Recirculation System, and Total Recirculation System.

 1. Once through System: In this system, the sealing liquid enters into the system once. The liquid that is discharged from the pump is directed to a separator vessel. In the separator vessel, the gas is separated from the liquid, and finally, the liquid is drained. This is a simple system, where no recovery or recirculation of the liquid takes place.

Advantages: The liquid ring system

·         Demands no major initial costs

·         Is suited for less critical service projects

 2. Partial Recirculation System: This system is similar to once-through system. However, the only difference is the separator is used for recirculating the liquid discharged from the pump. Makeup water is introduced in the separator tank to perform recirculation. The liquid discharged from the separator becomes equal to the quantity of the makeup water added. This discharge is conducted through an overflow connection, which is placed in the horizontal plane, in the shaft centerline of the pump. The fresh sealing liquid introduced to the pump helps maintain its proper temperature. This temperature maintenance contributes to pump maintenance, as well as minimizes the chances of cavitation.

Advantages: This liquid ring pumping system:

·         Demands no major initial costs similar to the once-through system

·         Consumes less sealing liquid

·         Is suited for applications which demand high seal-liquid conservation.

 3. Total Recirculation System: In this liquid ring pumping system, the sealing system is completely recirculated in the system. A heat exchanger is used to remove the heat produced in the system. Next, the sealing liquid is re-introduced into the vacuum pump. In this system, the level of the sealing liquid is maintained slightly below the centerline of the pump shaft. This is done to prevent the pump motor from overloading during the start. This may damage the pump in the long run. However, if the pressure drop in the system is high, then it is compensated using a circulation system.

Advantage: This liquid ring pumping system:

·         Is designed for high vapor/gas services

·         Consumes less sealing liquid

Looking for Vacuum Pump Manufacturer? Tekman is a Vacuum Pumps Manufacturer and Supplier in India. We offer the best quality Industrial, Dry Pump, Dry Screw Vacuum Pump & Rotary Vane Vacuum Pump

[atlascopcouae]

Atlas Copco UAE Vacuum Pump Solutions & services.

[yoyik456]

Yoyik supply Large transmission gear 0470/0010 for power plant

Yoyik supply Large transmission gear 0470/0010 for power plant Is to use the generator sets of professional power plant supporting model products. YOYIK main generator accessories, generator sets of accessories. For decades, the company for hundreds of thermal power plants, hydropower stations, cement plants, coal gangue power plants, metallurgical companies, steel and other overhaul, technical transformation to provide a reasonable and excellent equipment selection, construction planning, installation commission, after-sales service Perfect complete service, won the power industry industry wide acclaim. Yoyik can offer many spare parts for power plants as below: #DF-Large transmission gear 0470/0010-DF vaccum pump P-1751 mechanical seal DFB-80-80-240 high pressure piston pump A3H37-LR01KK-10 fuel pump 3GR42×44 solenoid valve 24BII-H10B-T piston plunger pump PVH74(QI)C-RM-10-C14 pressure hose SMS-15/20-1524mm-B radial piston pump PVH74ROIA-RSM-IS-10-C25-3 vickers vane pump F320V5A1C22R Double oil pump HS76685 VALVE, CHECK FOR OUTLET SWBP DN700 L: 430 pressure hose SMS-12/15-3048-B rotary piston pump PV29-2R5D-COO dc screw pump ACG070K7 piston vacuum pump A10V100R-31R-PPA12N00 electric centrifugal pump head SLQ-63 metering piston pump PVH074R01AA10A250000002001AB010A pressure hose SMS-12/N1/4-2438mm-B Flange Bearing 1-23-43184-561 dc centrifugal pump DFB100-80-250-14 O ring HY.SO.0077.V mechanical seal 36 mm 1D56-H75/95-00 00 11 servo controller BGCD-6121B electric pump for lubrication 2CY-21.6/0.49 vane pump working F3-V10-1S6S-1C20 piston plunger pump PVH74QIC-IS-10-C25-31 piston pump hydraulic A10VS0100DR/31R-PPA12NOO metering piston pump PVH098R01AJ30A250000002001AB010A Hot water Line valve actuator TR24-SR vaccum pump PVH131QIC-RSF-13S-11-C25-31 stainless steel globe valve K100FJ-1.6P manual vacuum pump ZS-185A rotary piston pump PVH098R01AJ30A250000002 solenoid valveM-3SED6UK1X/350CG220N9K4/V/60vacuum pump parts P-2811 dongfang generator self-lock nut 79AE-080STN1/2 Large transmission gear 0470/0010 differential pressure Regulator KSO25SZDA64Q stator cooling water pump impeller DFB-80-80-240 piston pumps PVH74-Q1C-RSM-1S-11-C25-31 AST solenoid valve coil TAT5002253 115VAC/19W vaccum pump P-2332 pump screw DLZB820-R64 lubrication system pump LDX36-95 multistage centrifugal pumps 50-250-007 water pump DFB80-80-220-03 piston vacuum pump PVH74QIC-RSM-IS-10-C25-31 vacuum pump 266v P-2335 Electronic control valve YA2BA4524G00061 solenoid valve G551A001MS,AC220V Centrifugal pump buffer ring 125LY-35-6 rotary vacuum pump WS-30 Check valve 216C65 DN65 PN10 ball valve KHB-M36×2-1212-02X centrifugal pump types DFB100-65-230 piston pump hydraulic 5MCY14-1B vaccum pump 30WS Oil-hydrogen differential pressure Regulating valve 977HP pressure hose SMS-20-915mm-B vacuum filter 2S-185 needle valve SHV6 vickers vane pump F3-V10-1S6S-1G-20 centrifugal pump parts YNKN300/200-20Y/J sealing oilVacuum pumpreducer gearbox MO1225.OBGCC1.5A transfer pump oil YW-32-160  sealing ring HB4-56J8-120 liquid ring vacuum pump 30-WS-32 screw pump diagram 3GR42*4A solenoid valve 4WE6D61/EG220N9K4/V O-ring C8689086 sealing oil Re-Circulating pump coupling HSNH280-43NZ CV valve (solenoid valve) 4WE6Y60-SG24M9K4-V gate P-1761 Large transmission gear 0470/0010 DFYLSYC-2024-6-3-A

[svckorea]

SVC: Higher Pumping Capacity at Much Lower Pressure When Vacuum Pump Used

SVC was established based on advanced technology and management philosophy of value creation with customers and SVC is a specialized company which manufactures the world highest level vacuum pump and vacuum pumping system.

Screwstar Dry pumps are designed under SVC’s unique screw profile engineering to fulfil wide range of chemical and industrial processes by rotating a paired screw that efficiently admit gases from inlet into the pump inside and compress through the screws swept volume toward the discharge.

Dry Screw vacuum Technology

Screw Vacuum pumps are Rotary Vane type with great fixing course of action. The vanes are sliding sort with spring stacked mounted at 180 separated on to a round and hollow turning part. The siphons clears the air from siphon in take to the fumes through N.R.valves at exhaust port. The notoriety of this cycle of expelling air on any gas from a framework or any vessels brings about the production of high Vacuum. A productive oil dissemination framework gave in the siphon serves to seal the siphon from climate just as to grease up every single mechanical part Screw type vacuum pump machine

SVC exports new technology Screwstar to global markets such as USA, EU, China and India. SVC is doing its b best to give customer satisfaction to the industry of Petrochemical, Fine Chemical, Pharmaceutical, Tank Terminal, Steel, Shipbuilding, Electronics, Semi-conductors Screw type vacuum pump korea

Features

·        High Vacuum Roots – EH Series

·        EH Vacuum booster allows the booster to be run at atmospheric pressure resulting in total pump down time can be reduced by as much as 50%

·        EH boosters lead to cost saving of driving cost and driving time that is, by using hydrokinetic drive, by-pass line and pressure control switch is not needed

·        Continuous Operation available at all pressures

·        Available to use Backing pump with lower capacity leads to saving cost of early expense to install more than conventional Direct Drive by the intercooler at the outlet

·        Automatic Speed Control function

·        Protect motors from Overload, Overheating

·        Start up with backing pump without any problem

[heat-treatment]

Where are ball valves commonly used

When the ball valve is fully open or fully closed, the sealing pair is completely isolated from the medium, and the medium passing at high speed will not erode the sealing pair. Ball in the opening and closing is a process of rotary wiping, so most ball valves can be used for the medium with suspended solid particles, select suitable wear-resistant seat sealing material, also can be used for powder media. Through type ball valve is used for cutting off. It is widely used. Three way and four-way ball valves are used to distribute medium and change medium flow direction. V-type ball valve can be used for throttling.

Full bore ball valve full open type easy to clean the ball through the cleaning pipeline, widely used in petroleum and chemical pipeline. It has wide application range, working pressure from vacuum to high pressure, nominal diameter DN8 ~ 3000, working temperature - 254 ~ 815 ℃. If the valve seat seal ring and other parts are made of non-metallic materials, their pressure temperature rating is lower than that of the ball valve shell (metal), resulting in the actual use of ball valve pressure, temperature and medium are limited.

When the valve seat seal ring and other materials are non-metallic, the fire-resistant and anti-static structural performance of the ball valve should be considered. It is difficult to grind the ball, but it is more difficult to process the metal seal ball valve. When dust, coking and viscous media are filled into the movable sealing ring, the displacement of the valve seat will be affected, thus affecting the sealing. Therefore, it is not suitable for the medium with coking and high viscosity.

The floating ball can float freely in the valve seat, so it has the advantages of simple structure and light weight. However, it must be light enough to bear high sealing specific pressure, large operating torque and not suitable for high pressure and large diameter valves. Fixed ball valve ball will not move, the whole natural, so small torque, good sealing performance, suitable for large diameter high pressure environment, but the structure is complex, complex process, high price.

Related products:

Electric Ultra-Thin Ball Valve

Air Conditioner Cooling Water Electric Butterfly Valve

Other related products:

Liquid ring vacuum pump Oil Diffusion Vacuum Pump

Dry screw vacuum pump

[deltaponline]

Technical paper: Vacuum technology in the chemical industry for producing Polyurethanes and Polyisocyanates

  The chemical industry is a supplier of indispensable raw materials for many industries. Not only the automotive and engineering industries, for example, but also the plastics, food, glass and building material industries rely on basic chemicals produced by the chemical industry. By far the most important role is played by polyurethane plastics or resins, which serve as the basis for foams or paints. These substances are employed in countless finished products that we use on a daily basis. Vacuum technology is indispensable for a large part of these applications. For the production of high-quality foams, it requires medium vacuum conditions up to 0.05 hPa Polyurethanes are compounds which are formed in a polyaddition reaction from multiple alcohols (di-, tri- or polyols) and polyisocyanates. Depending on the basic components used, thermosetting plastics, thermoplastics or elastomers are obtained which differ greatly in their properties and can accordingly be used in a large number of different end products. In the EU alone, more than 2 million tons of polyurethanes are produced annually; global demand rises on average by 5 % per year. Polyisocyanates are highly reactive organic compounds and act as crosslinkers for two-component polyurethane, from which coatings and foams are formed. The targeted curing of the substance at room temperature and the use of a special coating device, allow to customize the curing time for the application. For example, in a production plant, coatings only need to be mixed if needed immediately. Vacuum technology is enormously important for the polyisocyanate production. Following the actual production of the isocyanate, the highest possible concentration is ensured by means of a multi-stage distillation process. It requires fine vacuum conditions, i.e., absolute pressures in the range of 0.05 hPa.  ATEX certified vacuum solutions for the production of polyisocyanates TDI (2,4-toluene diisocyanate), which besides MDI (methylene diphenyl di-isocyanate) is the most widely-produced polyisocyanate in the world, is not only a very toxic liquid, but can also be used at higher temperatures to form flammable vapor- air mixtures. For this reason, the operators of the systems preferably use vacuum pumping stations which are certified in accordance with the ATEX Directive 2014/34/EU and which also meet particularly stringent requirements for tightness. In order to cover all aspects of quality and safety in the process operation, exact configuration according to the specific requirements of the respective application is necessary. In the first step, the respective gas volume flows are calculated on the basis of substance data and flows in the process. The results then serve as parameters for selecting the appropriate vacuum pumps. Important requirements include, besides safety, the durability and reliability of the vacuum technology used. Pfeiffer Vacuum offers complete ATEX-certified vacuum systems for the production of polyisocyanates. Most processes require a multi-stage construction of the vacuum system. The Pfeiffer Vacuum experts developed a six-stage system for a large German chemical company consisting of a five-stage Roots and a liquid ring vacuum pump. At different stages of the process, different gas inflows are taken into consideration. The system was created according to the customer’s specifications and fulfilled all individual parameters. CombiLine vacuum pumping stations To enable companies to create the vacuum conditions required in the various applications effectively and in a cost-optimized manner, Pfeiffer Vacuum offers customized solutions based on its comprehensive range of products. Especially with regard to applications in the chemical industry that require a pressure of less than 30 hPa, the Roots pumping stations from Pfeiffer Vacuum’s CombiLine WS have established as solutions. Depending on the required pumping speed and working pressure, different types and quantities of pumps can be installed in the individual pumping stages. Rotary vane, screw, liquid ring and gas-cooled Roots pumps are primarily available as backing pumps. Roots pumps are usually used for additional stages, which are available as air-cooled (standard) or gas recirculated versions and in various materials (e.g., spheroidal graphite cast iron or stainless steel). Specific coatings and coupling types are also available and can be combined for individual requirements. For applications in potentially explosive atmospheres, ATEX-certified 2G and 3G Roots pumps are available.

OktaLine ATEX Roots pump for use in potentially explosive environments ATEX-certified Roots pumps Thanks to their magnetic coupling, the OktaLine pumps are ATEX hermetically sealed. Their extremely low leakage rate of In addition to the advantages already mentioned, the magnetic coupling eliminates the shaft seals. Pumps with shaft seals can heat up due to lack of oil lubrication through friction and therefore represent a potential source of ignition. Experience from the field has shown that this condition – an empty oil tank for lubrication of the shaft seals – is very common. Furthermore, shaft seals are weak points in pressure surges and require regular maintenance.

Magnetic coupling of a Roots pump The OktaLine ATEX has long maintenance intervals resulting in lower maintenance costs. The magnetic coupling also reduces power consumption due to the virtually lossless transfer of the engine torque. As a result, the power consumption at the operating point can be reduced by up to 20 %. This is realized in comparison with other magnetically coupled pumps by a non-metallic containment shell, which has a significantly lower turbulent flow induction than, for example, magnetically-coupled liquid ring pumps. Air cooling also requires considerably less energy than water cooling, which significantly reduces operating costs. A non-blocked overflow valve makes pump replacement and operation very easy. In some cases, retro-fitting a frequency converter was not possible, especially in all applications where the ATEX-certified Roots pump should replace a previously used standard version. Moreover, if there are no additional pressure gauges, then starting the pump at a defined counter-pressure is not possible either. Standard pumps can easily be replaced by new ATEX pumps with its unblocked overflow valve. Neither frequency converters nor pressure monitoring devices need to be installed. Once again, the Roots pump can be started at the same time as the backing pump, so that the new overflow valve ensures not only safe operation but also shorter evacuation times. If the ATEX overflow valve is used in addition to a frequency converter, it ensures faultless operation even in the event of inverter failure. Frequency-controlled drives are suitable for increasing efficiency. This ensures that the system always works in optimum operating condition. Energy costs are saved – "vacuum on demand" becomes possible. Although it is now easier to replace older devices. Experience shows that even small changes made in the course of time in the process flow may necessitate a new consideration. One way of doing this is to optimize the gradation of the Roots pump and the backing pump, allowing better distribution of loads and temperatures. This results in an extension of the run-time. From conception to implementation, the experts at Pfeiffer Vacuum develop individual solutions together with customers from all different areas of the chemical industry. Read the full article

[everestvacuum]

Dry Vacuum Pump and its Types

All the dry vacuum pumps run hot as there are no liquids to remove the heat produced by the compressing gas. A cooling jacket helps to control the internal temperature. It also prevents excessive thermal growth, which may lead to failure. 

The timing gears, including oil reservoirs and close clearances between the housing and the rotors, are the additional attributes that build up a Dry Vacuum Pump. 

These vacuum pumps can handle corrosive vapors easily with standard iron construction. They are not manufactured in stainless steel or other high alloy materials as they cause excessive thermal growth. A hook and claw type needs a larger footprint and runs with little noise than the rotary screw type and rotary lobe type pumps.

Rotary lobe type

The rotary lobe type was the first dry pump used in the chemical industry. The roots blower principle is followed in this system. It works well when it is correctly selected. Maintenance is usually moderate to high on this design as lip seals are employed. 

Lip seals leak frequently, and they need to be cleaned up frequently. Gas can contaminate the bearing oil due to leakage of the lip seal. It is left unattended, the bearing will fail, and the rotors can make contact. Rotary lobe type pumps can employ heat exchangers to decrease the operating temperature of the pump.

Rotary screw type

The rotary screw type of dry vacuum pump is suitable for high vacuum levels. It is not ideal for all applications. It runs hot compared to the other kind of vacuum pump. Polymerization can occur due to operating temperatures. The rotary screw pump moves the gas along the screw length. 

Mechanical compression and gas compression doesn’t happen until the final half-turn of the screw. The discharge temperature may be 660 degrees Fahrenheit. It is not suitable for handling flammable gases or sensitive products.

The mentioned information will help you to choose the fry vacuum pumps. Vacuum technology is used for the processing of synthesis and purification. You can choose Chemical  Process Vacuum Pump as per your need. The chemical process involves distillation, reaction, drying, crystallization, etc

[antliaworks1]

Useful information on positive displacement pumps

What is a positive displacement pump?

A positive displacement pump moves fluid by repeatedly enclosing a fixed volume & moving it mechanically through the system. The pumping action is cyclic & can be driven by pistons, screws, gears, rollers, diaphragms or vanes.

How does a positive displacement pump works?

Although there are a wide variety of pump designs, the majority can be placed into two different categories: reciprocating & rotary.

Reciprocating positive displacement pumps

A Reciprocating Positive Displacement pump works by the repeated back & forth movement of a piston, plunger or diaphragm. These cycles areas also called as reciprocation. In a piston pump, the first stroke of the piston creates a vacuum, opens an inlet valve, closes the outlet valve & draws fluid into the piston chamber (the suction phase). As the motion of the piston reverses, the inlet valve, now under pressure, is closed & the outlet valve opens allowing the fluid contained in the piston chamber to be discharged (the compression phase). The bicycle pump is a simple example. Piston pumps can also be double acting with inlet & outlet valves on both sides of the piston. While the piston is in suction on one of the sides, it is in compression on the other. More complex, radial versions are often used in industries. Click here to know more about air operated double diaphragm pump.

Plunger pumps operate in the same way. The volume of fluid moved by a piston pump depends on the volume of the cylinder; in a plunger pump, it depends upon the plunger size. The seal around the piston or plunger is important to maintain the pumping action & to avoid leaks. In general, a plunger pump seal is easy to maintain since it is stationary at the top of the pump cylinder whereas the seal around a piston is repeatedly moving up & down inside the pump chamber.

Rotary positive displacement pumps

Rotary positive displacement pumps use the actions of rotating cogs or gears to transfer fluids, rather than the backward & forwards motion of reciprocating pumps. The rotating element develops a liquid seal with the pump casing & creates suction at the pump inlet. Fluid, drawn into the pump, is enclosed within the teeth of its rotating cogs/gears & transferred to the discharge. This is the simplest example of a rotary positive displacement pump is the gear pump. There are two basic designs of gear pump: external & internal. Get here the latest information about diaphragm pump.

An external gear pump consists of two interlocking gears which are supported by separate shafts (one or both of these shafts may be driven). Rotation of the gears traps the fluid between the teethes moving it from the inlet to the discharge, around the casing. Fluid is not transferred back through the center, between the gears, because they are interlocked. Close tolerances between the gears & the casing allow the pump to develop suction at the inlet & prevent fluid from leaking back from the discharge side.

What are the main features & benefits of a positive displacement pump?

There are two main families of pumps: positive displacement & centrifugal. Centrifugal pumps are capable of higher flows & can work with lower viscosity liquids. In some chemical plants, 90% of the pumps in used are centrifugal pumps. However, there are numbers of applications for which positive displacement pumps are preferred. For example, they can h &le higher viscosity fluids & can operate at high pressures & relatively low flows more efficiently. They are also more accurate when metering is a very important consideration. Buy AODD Pump online at Antlia Engineering Works.

What are the main applications for positive displacement pumps?

Positive Displacement pumps are commonly used for pumping high viscosity fluids such as oil, paints, resins, and foodstuffs. This pump is preferred in any application where accurate dosing or high-pressure output is required. Unlike centrifugal pumps, the output of a positive displacement pump is not affected by pressure so they also tend to be preferred in any situation where the supply is not regular.

Summary

A positive displacement pump moves fluid by repeatedly enclosing a fixed volume, with the aid of seals or valves, & moving it mechanically through the system. The pumping action is cyclic & can be driven by pistons, screws, gears, lobes, diaphragms or vanes. There are two main types: reciprocating & rotary. To know more about double diaphragm pump contact Antlia Engineering Works.

[tekmantechnology]

The Advantages of Using a Vacuum Pump

A vacuum truck is a specially designed vehicle used for the purpose of waste and water management. Most units have a water delivery hose along with a suction hose. They’re primarily used to suck out debris and other waste materials from grease traps, sewers, septic’s and oil spills. The tank can be made using different materials like mild steel, which is known for its durable properties and stainless steel. It can handle a wide range of waste products. Some companies prefer using tankers made of stainless steel to transport light to heavy industrial waste liquid.

Looking for a Vacuum Pump Manufacturer and Suppliers in India? Check out our best Vacuum Pump Manufacturer and Supplier in India. We offer the best quality Industrial, Dry Pump, Dry Screw Pump & Rotary Vane Vacuum Pump

Vacuum pumps are a versatile piece of laboratory equipment for suctioning via negative pressure. They are routinely used in biological sciences for filtration, distillation and concentration of volatile solvents, solid phase extraction, freeze drying, and more. Even though vacuum pumps share a common function, there are many considerations to take into account when choosing a new pump. The following article will explain some important attributes to look for when comparing different vacuum pumps.

 Vacuum Pumps

 The two types of pumps that are commonly used on vacuum truck units are vane pumps and liquid ring pumps. Medium to light industrial waste trucks feature liquid ring pumps. These pumps are ideal for suctioning heavy sludge. Vane pumps, on the other hand, are used for the suction of moderate viscosity liquids. Each pump has its own advantages. Choose one based on the type of waste you have to pump and transport.

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 Advantages of Using a Vacuum Pump

 ·         You can use a vacuum pump to safely suction and transport mine camp waste.

·         The trucks have spill prevention and odor control capabilities. This makes it easier and safer to transport materials like bio solids.

·         Vacuum trucks safely transport hazardous waste materials. They protect the environment and prevent people from coming into contact with toxic waste.

·         They can quickly and efficiently remove waste from clogged drainage systems and catch basins. They save time by getting the task done faster.

·         Some trucks feature tipping tanks, rear doors and power jets. These complex builds are ideal for use in a wide variety of applications.

 What type of pump do you need?

 First, evaluate which type of pump is best suited to your laboratory needs. Vacuum pumps differ in their design and components, and each type performs best for specific applications. For example, a chemically resistant diaphragm pump is more appropriate for work that involves suction with corrosive solvents, such as solid phase extraction. A rotary vane or gear pump is more appropriate for work that requires a stronger vacuum such as freeze drying or rotary evaporation.

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 Oil Free Vacuum Pumps

 As the name suggests, oil free pumps use a dry lubricant instead of oil to prevent friction between the internal components. These include piston, diaphragm and scroll pumps. Chemically resistant models are coated with PTFE and are safe to use with most corrosive gases. Applications for oil free pumps include large or small-scale extraction and membrane filtration. These pumps are often portable and low maintenance, but come with a tradeoff in weaker max vacuum power. The Rocker 300 and Rocker 400 are all oil free pumps that will

Work best for filtration applications with noncorrosive solvents. The Lafil 300C, Chemker 300, and Rocker 300C are chemical resistant options for a wider range of vacuum filtration applications.

 Rotary Vane Vacuum Pumps

 Rotary vane vacuum pumps are oil-sealed and used for lab applications that require a stronger, consistent vacuum pressure below 10-3 mbar. Hydraulic braking systems, freeze dryers, and mass spectrometry typically use rotary vane vacuum pumps. Some drawbacks of oil-sealed pumps involve disposing of toxic oil waste and difficulty finding replacement spare parts. The Tanker series includes several different sized pumps with Tanker 130on the small end and Tanker 230 on the larger end.

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 Water Aspirators

 Aspirators create suction with negative water pressure. The aspirator is connected to a tap and suction is created through a hose when the tap water flows through a nozzle at high speed. The fluid being aspirated mixes with the waste water into the sink or a separate collection bucket. While aspirators are generally inexpensive and easy to use, they require continuous water flow to run and should not be used with hazardous materials. They are not as strong as a wet or dry vacuum pump, and the performance varies depending on the water flow and temperature. The polypropylene aspirator vacuum pump is an inexpensive, easy to use alternative to an electric pump.

 Final considerations

 Vacuum pumps are a vital piece of laboratory equipment. Simplify your search by narrowing down the options. First, decide which type of pump will best suit your lab needs by evaluating the required max vacuum, corrosive chemicals, and toxic oil disposal. Then, compare different models based on pump performance (vacuum vs. flow rate), noise level, weight, and cost.

[letssara11]

Vacuum Impregnation Plants & Pressure Impregnation Plants Manufacturer In India

Vacuum Impregnation Plants & Pressure Impregnation Plants Manufacturer In India

TECHNICAL SPECIFICATIONS

Vacuum Impregnation Plants and Pressure Impregnation Plants is designed for varnish impregnation to be carried out in following steps and will be generally as per the schematic diagram attached.

Pre-heating the jobs in either Impregnation Chamber or in Oven if you have a less time available.Evacuation of Impregnation Chamber (after putting the jobs) to make the voids in the jobs clear and drying of jobs for specific time & required temperature / vacuum.

Induction of impregnant (Varnish) in the Impregnation Chamber from impregnant Tank to submerge the jobs in it.

Pressurize the Impregnation Chamber with dry air or nitrogen to fill the voids with Impregnant.

Return the varnish to Impregnant Tank.

Cure the jobs either in Impregnation Chamber or in Oven for specific time if time available is less.

The plant will be generally as per the schematic diagram attached herewith and will mainly consist of following major components:IMPREGNATION CHEMBER:

Chamber Dimensions: Diameter – Ø --- mm, Height  ---- mm (suitable for jobs)

Material of construction: MS plates, bars, structural etc.

Working Pressure: 1- 4 kg / cm2 & Vacuum: 0.1 / 1 / 10 / 50 torr

Lid Opening: Screw Davit type for quick opening & closing or hydraulic operated automatic

Temperature control: With Thermostat or digital TIC

Will be provided with: Oil Heating / cooling Jacket, Quick Clamping bolts, Stirrer, Neoprene Gaskets, Sight glass, Illuminating Lamp, Pressure Safety Valve, Vacuum & Pressure gauges etc. as per the varnish specifications.

IMPREGNANT STORAGE TANK :Material of Construction: M.S. plates, bars, structurals etc

Varnish Tank Capacity: 50 - 80% of Impregnation chamber.

Will be provided with: Level Indicator, Motorised Stirrer, TIC to indicate and control the varnish temperature, Return Line Filter to prevent entry of impurities carried away from impregnation chamber to storage tank and suitable drain. Silica Gel Breather will also be provided to prevent absorption of atmospheric moisture.

VACUUM SYSTEM :

Type: Rotary Oil sealed Vacuum Pump or Roots – Rotary combination.

Capacity (free air displacement): 50 LPM to 1600 Mᵌ/hr.

Ultimate Vacuum with G. B. Closed - 0.005 torr  to 0.0001 torr.

Make: Indowoosung, Everest, Doftel or reputed Make

Working Vacuum – 0.1 / 1 / 10 / 50 torr

Condenser: Water-cooled. (Water cooling system optional)

COMPRESSOR :

Type: Piston Type

Free air displacement: 10 CFM

Working Pressure: 4 Kgf/cm2

Make: Reputed make

In case of low vacuum/pressure impregnation, combined vacuum/pressure pump can be used

IMPREGNANT TRANSFER SYSTEM :Interconnecting pipes: M.S. ERW, B Class or SS in case of resin impregnation.

Valves: Piston Type (Vacuum tight with O'rings & Nylon wipers) OR Ball valves with Teflon seals ( manual or tuated )

Connections: Flanged type with Neoprene O'rings.

Operating Platform: M.S. Fabricated suitable for easy plant operation in case of big plants.

CONTROL PANEL:Centralized Control panel for easy and safe operation will be provided along with necessary gauges and controls.

[guzumachineryusa-blog]

The vacuum pump’s market

The vacuum pump is a large-volume product with a large output and low output value, but it is indeed an essential basic product that directly affects the performance quality of vacuum equipment. Vacuum pumps range from high/ultra-vacuum to coarse/low vacuum, and their products can be roughly divided into 14 categories: High/ultra-vacuum - cryopump, molecular pump, sputter ion pump, titanium sublimation pump, diffusion pump.

6 inch trash pump

Medium vacuum - dry pump, two-stage rotary vane pump, Roots pump, oil booster pump, water vapor jet pump. Coarse/low vacuum - single stage rotary vane pump, slide valve pump, liquid ring pump, reciprocating vacuum pump.

4 inch trash pump

The market for vacuum pumps changes dynamically according to the needs of users. The main drivers of market growth are the rapid development of the semiconductor industry and the growing use of dry pump and molecular pump applications. At present, the global vacuum pump market has annual sales of about 2 billion US dollars, with an annual growth rate of about 7%.

 There are many manufacturers of vacuum pumps in China. The annual sales of all vacuum pumps is about 150 million yuan, which is only equivalent to the annual sales of a vacuum pump from Kinney. Through the analysis of the global vacuum pump market, we can see that the market and application fields of various vacuum pumps are constantly changing and developing. China's vacuum pump manufacturing industry has a long history and solid foundation. Domestic vacuum pumps have been applied and verified in various fields. Some pumps have also been exported to foreign countries and have been recognized by foreign users and received favorable comments. It should be said that China's vacuum pump manufacturing industry is at home and abroad. The market still has huge room for development.Liquid ring pump. Although the liquid ring pump is a rough vacuum pump, it still has a large market in China's petroleum, chemical, electric power, textile, paper, medicine and other fields. In foreign countries, the sales of liquid ring pumps accounted for 14% of the total vacuum pump market, second only to dry pumps, so companies such as Nash, Seimems and Kinney are investing in China or establishing sales networks to expand their market share in China. Since most of the liquid ring pump is casting, the processing requirements are not high, and it is a labor-intensive product. Therefore, the domestic liquid ring pump has a competitive advantage in price. The key is to improve the design, reduce the volume, reduce the weight, improve the efficiency, and reduce the energy. Consumption.

 Slide valve pump

Because the spool valve pump is more durable and reliable, all kinds of vacuum furnaces, coating machines, drying and impregnation equipments at home and abroad use the slide valve pump as the foreline pump, but the sliding valve pump castings are heavy and the processing workload is large, so foreign Each vacuum plant is looking for a partner in China. In order to enable the domestic spool valve to enter the international market, it is necessary to further reduce the vibration and noise of the pump, prevent fuel injection and oil leakage, and improve the reliability of the long-term operation of the spool pump. It’s specially used in self priming trash pump and self priming sewage pump.

 Direct coupling rotary vane pump

With the continuous expansion of vacuum technology in various application fields, the demand for direct-coupled rotary vane pumps is increasing. Due to the large number of such pumps, the processing and assembly work is very large, and the price is very low, so some foreign vacuum manufacturers set up professional factories in China. The domestic small and medium-sized direct-coupled rotary vane pump has been technically passed, and the price is far cheaper than that of the foreign pump. Therefore, the domestic vacuum pump still has a competitive advantage. The key is to solve the shaft seal oil leakage and the performance quality of the rotary vane material and the vacuum pump oil. To ensure the stability and reliable operation of the direct-coupled pump at high speed and high temperature, and to further improve the ability of the domestic direct-coupled rotary vane pump to remove water vapor. It can also fit in 6 inch trash pump.

 Roots pump

From the perspective of the production of Roots pumps abroad, several large foreign companies, such as Leybold, Balzers, Alcatell, Edwards and ULVAC, their sales of Roots pumps accounted for less than 5% of the global sales of Roots pumps. The total of these 5 companies is only 20%. The output of Roots pumps is not large, but the price of foreign Roots pumps is much higher than that of domestic pumps. At present, almost all large and small high-vacuum and medium-vacuum systems at home and abroad are equipped with Roots pumps in order to shorten the pumping time and improve production efficiency. Therefore, the domestic Roots pump must try to enter the international market based on the occupation of the domestic market. Therefore, it is necessary to further reduce the vibration noise of the domestic Roots pump, completely solve the problem of shaft seal oil leakage, improve the appearance quality of the pump, and improve the smoothness and cleanliness of the pump. In addition, it is necessary to consider that the power frequency of some countries and regions is 60Hz, and it is necessary to ensure the reliability of the long-term operation of the Roots pump under the condition of increasing the speed. The self priming pump have roots pump also.

 At present, domestic air-cooled direct-flow atmospheric Roots pumps are progressing rapidly and are technically mature. Since the pump is equipped with a gas cooler below the exhaust port, and a part of the cooled gas is returned to the pump chamber through the pipe to cool the rotor, so that the heat of compression is balanced, the pump can be directly exhausted to the atmosphere. In order to meet the requirements of different ultimate vacuum, the pumps can be used in series. Generally, an air-cooled straight-flow atmospheric Roots pump is added in front, and the ultimate vacuum achieved is one order of magnitude higher than that of the foreline pump. This type of pump is actually a dry pump because there is no working medium in the pump chamber. At present, this air-cooled direct-flow atmospheric Roots pump and unit has been tested in the long-term operation of petroleum, chemical, plastics, pesticides, turbine rotor dynamic balance, aerospace space simulation and other devices, so it should be promoted in China. And application. 4inch trash pump also have this.

 5. Molecular pump

Molecular pumps are used in many foreign semiconductor fields to replace cryopumps, especially sputtering, etching and LCVD. The composite molecular pump and traction pump are used as the main pump.

Since the pumping speed of the molecular pump to water vapor is only one quarter of the pumping speed of the same-diameter cryopump, the molecular pump has a longer exhaust time than the cryopump. In order to increase the pumping speed, a low-temperature cold plate of -130 ° C ~ -150 ° C is installed on the inlet side of the molecular pump, which is called a low temperature molecular pump. The water vapor is captured by the cryogenic plate, and other gases are pumped away by the molecular pump. This low-temperature molecular pump is applied to a vacuum coating device, which not only improves production efficiency but also improves film quality. With the rapid development of China's semiconductor industry, film industry and scientific research, molecular pumps should be the focus of the development of China's vacuum pump manufacturing industry. First of all, the molecular pump should establish a complete series from small to large, and research and development of various composite molecular pumps, traction pumps and low temperature molecular pumps to meet the needs of different occasions.

6. Dry pump

The dry pump market in foreign countries continues to grow, and its main drivers are the rapid development of the semiconductor industry, chemical industry and film industry. In Japan, the semiconductor industry has replaced dry-type vacuum pumps with oil-sealed mechanical pumps. More than 45% of the European and American semiconductor industries have replaced the oil-sealed mechanical pumps with dry vacuum pumps, which greatly improved the performance and quality of the products. In order to meet the requirements of different application fields and different working conditions, there are multi-stage Roots vacuum pumps, multi-stage claw vacuum pumps, screw vacuum pumps, scroll vacuum pumps, reciprocating piston vacuum pumps and turbine oil-free vacuum pumps. The ultimate pressure is from 10Pa to 10-2Pa, and the pumping speed is from 20m3/h to 500m3/h. According to statistics, the current domestic dry pump application is less than 1%. The domestic dry pumps for the semiconductor industry are all imported from abroad, and the price is very expensive. Therefore, China should vigorously research and develop dry pumps, making dry pumps a new economic growth point for China's vacuum industry.