#Leak reapir

[mrrooteraustin]

Should I call a plumber or do it myself  for water heater reapir?

Water heaters are an essential component of modern households, providing hot water for bathing, cooking, and cleaning. However, like any appliance, they can occasionally malfunction or require repairs. In this comprehensive guide, we will explore common water heater issues, troubleshooting methods, and potential solutions to help you water heater repair.

1) Identifying Common Water Heater Problems:-

Before diving into repair solutions, it's crucial to identify the problem you're experiencing. Here are some common water heater issues:

a) No Hot Water:

 If you turn on the hot water faucet and receive only cold water, it's a clear indication of a problem. This could be due to a faulty heating element or thermostat.

b) Leaking Water:

Water puddles around your water heater are a serious concern. Leaks can originate from various points, such as the tank itself, the pressure relief valve, or the inlet and outlet connections.

c) Inconsistent Water Temperature:

 When your water temperature fluctuates wildly, it can disrupt your daily routines. Inconsistent temperatures may be the result of a malfunctioning thermostat.

d) Strange Noises:

 Popping, cracking, or rumbling sounds emanating from your water heater can be unsettling. This is often caused by the buildup of sediment in the tank.

2) Troubleshooting Water Heater Problems:-

Once you've identified the issue, consider these troubleshooting steps:

a) Check the Power Supply: -

For electric water heaters, make sure it's receiving power. Ensure the circuit breaker isn't tripped. For gas heaters, ensure the pilot light is on.

b) Inspect the Pressure Relief Valve: -

A leaking pressure relief valve can cause water heater issues. Test it by lifting the valve's lever; water should flow when you release it.

c) Flush the Tank:-

 If you hear strange noises, sediment buildup may be the culprit. Drain and flush the tank to remove sediment, which can improve efficiency and prolong the heater's life.

d) Test the Thermostat:-

 If your water isn't hot enough or the temperature is inconsistent, test the thermostat. Adjust it to a higher setting and monitor if the water temperature improves.

e) Repairing Water Heater Problems

If troubleshooting doesn't resolve the issue, you may need to consider repairs:

f) Replacing Heating Elements:-

 Faulty heating elements are a common issue in electric water heaters. If your element is damaged, it's essential to replace it with a compatible one.

g) Fixing Leaks:-

 Leaks can be caused by various factors. You might need to replace a corroded valve, tighten loose connections, or, in extreme cases, replace the tank itself.

h) Thermostat Replacement:-

 A malfunctioning thermostat can lead to temperature issues. Replacing the thermostat is relatively straightforward and can restore consistent hot water.

i) Anode Rod Replacement:-

 Anode rods prevent corrosion inside the tank. Over time, they can degrade and need replacement to maintain the tank's integrity.

In conclusion, water heater repair can vary from simple troubleshooting to more complex issues that require professional assistance. Regular maintenance and promptly addressing problems can help prolong the lifespan of your water heater and ensure a consistent supply of hot water in your home. Remember that safety should always be a priority, especially when dealing with gas appliances and severe leaks.

[robertseo2019-us]

Industrial Roofing Reapirs London

Tired of the constant dripping and the ominous creaks that keep you up at night? Look no further than Industrial Roofing Repairs London, your ticket to a leak-free and worry-free life. With their team of skilled professionals, they have been providing top-notch roofing services for businesses in the heart of London for over a decade. From small repairs to complete roof replacements, they are equipped with the knowledge and experience to tackle any roofing issue that comes their way. Say goodbye to those pesky leaks and hello to a sturdy and reliable roof that can withstand even London’s notorious rainy days.

Are you ready for an upgrade from your outdated, worn-out roof? Industrial Roofing Repairs London is here to transform your business’s rooftop into a fortress above the bustling city streets. No longer will you have to worry about water damage or unsightly leaks ruining your day; their team of experts will provide efficient repair services tailored specifically to meet your needs. With their commitment to quality craftsmanship and unmatched attention to detail, they have earned a reputation as one of the leading industrial roofing companies in London. Get ready for a roof that not only protects but also enhances the aesthetic appeal of your business space – because who says roofs can’t be stylish?Are you ready for an upgrade from your outdated, worn-out roof? Industrial Roofing Repairs London is here to transform your business’s rooftop into a fortress above the bustling city streets. No longer will you have to worry about water damage or unsightly leaks ruining your day; their team of experts will provide efficient repair services tailored specifically to meet your needs. With their commitment to quality craftsmanship and unmatched attention to detail, they have earned a reputation as one of the leading industrial roofing companies in London. Get ready for a roof that not only protects but also enhances the aesthetic appeal of your business space – because who says roofs can’t be stylish?

[danapeiton]

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The kitchen is the healing ground of the house and when the kitchen is remodeled before it is listed on charts for sale, the house goes one step ahead of the other houses. The real estate market may keep its track on or off but a property with attractive kitchen fixtures can surely woo any ready-to-move family. Replace Kitchen Fixtures Wildomar CA by appointing a trustworthy contractor who can pinpoint the problems and give a cost-effective solution.

[pureplumber]

Residential plumbing service

Website: https://pureplumber.com/plumbing-reapirs/

Address: 14233 Proton Rd, Dallas, TX 75244

Phone: 806-522-1721

Residential & Commercial Plumbing Service now is in a position that everyone is believing on our confident and service. Pure Plumber offers commercial services that keep your plumbing system flowing properly.Plumbing service is something that nearly every contemporary structure has. Modern plumbing service systems bring fresh water to the kitchen, bathroom, and laundry areas of the home or business. And drain away used water to sewer or septic systems.Are you looking for a water jetting expert to unclog your sewer and drain pipes? Look no further than Residential & Commercial Plumbing Service – you leading plumber in and around Dallas, TX. Water jetting, Drain Leak can do more than break up clogs; it gets rid of debris and grease as well as cuts tree roots all the way around the walls of your drain and sewer pipes. When considering water jetting, however, it pays to consult with a professional plumber

[pureplumberaddison-blog]

Residential plumbing and commercial plumbing service Dallas

Website: https://pureplumber.com/plumbing-reapirs/  

Address: 14233 Proton Rd, Dallas, TX 75244

Phone: 806-522-1721

"Residential & Commercial Plumbing Service now is in a position that everyone is believing on our confident and service. Pure Plumber offers commercial services that keep your plumbing system flowing properly.

Plumbing service is something that nearly every contemporary structure has. Modern plumbing service systems bring fresh water to the kitchen, bathroom, and laundry areas of the home or business. And drain away used water to sewer or septic systems

Are you looking for a water jetting expert to unclog your sewer and drain pipes? Look no further than Residential & Commercial Plumbing Service – you leading plumber in and around Dallas, TX. Water jetting, Drain Leak can do more than break up clogs; it gets rid of debris and grease as well as cuts tree roots all the way around the walls of your drain and sewer pipes. When considering water jetting, however, it pays to consult with a professional plumber"

[syedsajjadali]

Short-lived Plumbing Answers: Patching Leaking Conduits.

As the popular kids' story from Holland goes, there clearly was after a coastal town protected with a dike. One day, a responsible and bold young boy from the town saw a gap in that dike and immediately stuck his hand in the hole. He used his hand there and waited till some Central Heating reapirs Basingstoke body can come and fix the dike. The ethical of the story was that with his persistence and foresight, the young boy was able to save yourself the town by having an immediate but short-term solution. Had he perhaps not done therefore, the whole town could have been flooded.

There are lots of cases where a short-term but immediate solution is necessary. Get leaky pipes for instance. Now, you do not have to stay there keeping back the water till help occurs, but you will find other short-term plumbing alternatives you are able to turn to. Using a area to each of the leaky pipes is just a convenient way to greatly help protect your belongings and reduce further injuries from occurring before a plumbing service will come to the rescue.

The first faltering step in patching leaky pipes would be to shut down the water supply. It's essentially impossible to area leaky pipes if the water offer is on. In the event that you can't turn the water down at a local valve, you must shut down the water at the key valve (it connects the town pipes to your home's water supply).

A plumbing fix clamp, which consists of a material clamp that's lined with a plastic gasket, is the easiest and fastest solution to temporarily fix leaky pipes. What essentially occurs is that after the clamp is tightened, the plastic seals the leak. Again, this won't keep carefully the pipe from corroding, but it's a rapid correct process for plumbing leaks until you get the region examined with a plumbing professional.

To be able to see if your areas were effective, re-open the water valve you'd shut off. Turn on the encompassing faucets and inspect the leaky pipes you patched to see if water leaks through. Remember, your work does not have to be positively perfect; it just needs to manage to behave as a fast correct till a plumbing service happens to be able to give a permanent fix for the pipes.

You intend to recall never to be irresponsible in regards to plumbing leaks. Like everyone else wouldn't walk away from the burning range top or even a illuminated candle at home without some type of guidance, you shouldn't keep your short-term pipe areas unsupervised. Anything can happen. So, it's wise to keep an eye on and check your leaky pipes regularly in order to make sure that no further damage can be carried out till your neighborhood plumber will come and correct your plumbing leaks the moment possible.

You also may do a significant task, like the small Dutch child in the story, by following a steps above. By patching your leaky pipes, you'll manage to save yourself your family from the injuries and over all inconvenience that accompany leaky and broken plumbing. It is essential to remember that patching is just a short-term solution, therefore don't forget to call your neighborhood plumbing business the moment you can. Escapes at home can continue to have worse till you find a far more permanent solution.

[bbqrepairdoctor]

Royal Gourmet grill repair

Royal Gourmet makes high-quality, high-performance barbecue grills.  Over the long life of your Royal Gourmet BBQ, it's bound to have some repairs needed. And you will need a Royal Gourmet grill repair experts to deal with these, often complex problems. BBQ Repair Doctor is such an expert. We have been dealing with barbecue repair, cleaning, and restoration for many years and we know Royal Gourmet grills extremely well. In fact, we are factory certified and trained by Royal Gourmet. Their demanding performance standards cover product maintenance, diagnostics, repair, and customer relations. You can count on us to do your BBQ repair job right! We work on gas grills, charcoal grills, portable grills, smoker grills, and electric grills. No project is too big or too small for our highly qualified barbecue repair specialists. The following is a list of Royal Gourmet grills we specialize in: Royal Gourmet gas grill repair Royal Gourmet charcoal gas grill repair Royal Gourmet portable gas grill reapir Royal Gourmet griddle repair Royal Gourmet combo grill repair Royal Gourmet smoker grill repair

Why Royal Gourmet grill repair is a better option than buying a new grill:

Many of the lower-cost grills have inferior burners. They are made of low-quality metal and will start to rust and fall apart after one season. The grilling deck is also an issue. Many low-cost grills have grill grates that are cheap metal coated with a thin layer of chrome that burns off. They look great in the showroom but quickly deteriorate. Unlike other grills, Royal Gourmet grills are made of the first-grade metal. They will work well for years as long as you do the proper maintenance. By calling BBQ Repair Doctor for your Royal Gourmet grill repair, you will save not only money but also the hassle of shopping for a new appliance. You will also gain peace of mind in knowing that your grill is safe and has a long life ahead of it.

What BBQ Repair Doctor can do for you:

We can solve pretty much any issue that you may have with your Royal Gourmet grill. Here are just some of the problems that we solve for our customers. Grill won't get hotter than 250 to 300 F

Flavorizer bars need cleaning or maintenance Frost on grill regulator Liquid propane tank has a leak Adjusting air shutters on burner tubes Experiencing too many flare ups Replacing original regulators Performer won't light Burner problems Electrode repairs of sparking unit Conversion of propane to natural gas and vice versa Gas shut off valve install Valve repair and install Barbecue grill installs and removal Side burner Push button and rotary igniter modules Gas leaks Grill grates Searing trays Heat stones and lava rocks Low heat issues Gas regulators, hoses, and attachments And much more

Why pick us to do your Royal Gourmet grill repair:

As Royal Gourmet grill repair specialists, we take our job very seriously.  Our factory certified team has years and years of experience of working with Royal Gourmet barbecue grills. We also know how to work with you, our customer. Our team members are always on time, and always polite and knowledgeable. Your satisfaction is our goal. Also, the BBQ Repair Doctor uses the latest technology and genuine Royal Gourmet parts. In fact most of the parts we bring with us in our trucks. So, that majority of the time nothing has to be ordered. Your time is precious to us. We do our best to keep your Royal Gourmet grill working and looking new. If you can dream it, we can make it a reality!

Other services we provide:

Besides doing Royal Gourmet grill repair, we also specialize in grill cleaning and restoration. We can take an old dirty grill and make it look like new again. We do miracles when it comes to grill restoration. Our clients are always amazed at what you can do with an old grill for a fraction of the price of buying a new one. It's not only barbecue grills that we work on. We also do the entire outdoor kitchen repair and outdoor kitchen cleaning. That includes any outdoor appliances such as a cooktop, pizza oven, sink, refrigerator, Wine cooler, dishwasher, beer tap, smokers, hibachi grills and warming drawers, patio heaters as well as storage drawers and countertop spaces.

Call us to make an appointment:

For Royal Gourmet grill repair please call us 818-392-8666 in Los Angeles or Ventura County,  858-433-0703 in San Diego or 510-731-6480 in East Bay to schedule an appointment. Or fill out our short online form. We would love to hear from you and answer all of your questions. Appliance repair services avalable as well. Read the full article

[lanhawk]

(via https://www.youtube.com/watch?v=dG2BvEoowUw)

[profitable-tips-for-you]

How to Extend Service Life of Corroded Pipes

How to Extend Service Life of Corroded Pipes

Introduction

If put unattended, inordinate outer and inner erosion, corrosion, disintegration, scraped spot, marks and breaks can all conceivably prompt catastrophes. These pipeline deformities when unattended can bring about costly and conceivably fatal results to resource proprietors and machineries administrators. Hence, these pipeline imperfections are obliged to suitable repairs or…

[waterproofingfew]

(Findlay-Evans Waterproofing)

MELBOURNE COMMERCIAL BALCONY REPAIRS - CALL US (03) 8812 2918 - Waterproofing Contractors in Melbourne. REPAIR & RESTORE LEAKING BALCONIES. https://www.waterproofingfew.com.au/balcony-waterproofing-method-melbourne/ Hello this is Paul, Findlay-Evans Waterproofing - MELBOURNE WATERPROOFERS. CASE STUDY  = Commercial Balcony Waterproofing System This waterproofing project is a commercial office building with a number of different tiled balconies that were all leaking. There were numerous water leak detection issues with these balconies. The office building waS only about 8 years old and the balcony tiles surface is lifting and leaking. Now those problems being that the original membrane was laid down on the flat surface of the concrete slab. Then the screed was applied over the top of the waterproof membrane - there are some images of invasive inspection. there's a shot here showing the invasive inspection. The screed above proved to be in reasonable order - that is it had enough sand and cement in it & has a good body. However there were sections the Findlay-Evans Team had to repair. In general as the screed was pretty good so we retained the screed and in this case and left the original waterproofing membrane in place as a secondary barrier. The balcony was obviously leaking so we need to install a complete new membrane system. While doing this, the Findlay-Evans Team also screeded up areas as required. However the balcony had very poor drainage o the outlet points as there was not much fall in the design of the balcony. So there was a challenge to get the water to drain to the various balcony outlets. The outlets needed extra plumbing works so we installed new puddle flanges and droppers onto make sure that the water control on the balcony was being directed downwhere it should go - drainage the pipes. Once the remedial plumbing was in place we moved ahead to putting in a new waterproofing membrane on the balcony. Waterproofing preparation was carefully detailed specifically in each area, with  all balcony  joints and junctions being detailed with polyethylene fabric and the liquid rubber waterproofing system.  Once that was all done we went ahead and laid our LIQUID RUBBER coatings and Then introduced an interlayer of fiberglass mesh to give it some toughness. The balcony was then over coated with a coat of Thermo Top Coat membrane to give robustness and durability. Findlay-Evans Team worked efficiently to have the balcony membrane down for our Team of Tilers to come in. The Alucobond Cladding on this commercial office building also had problems, there was still water ingress coming from other areas. We performed some water leak detection & investigation  and discovered Rather large gaps found shown here with a pencil and tape. Our Waterproofers went ahead and detailed all those joints and junctions to stop water getting in and then give them a coat of Thermo Top Coat membrane. So there many points of entry for water ingress in this balcony repairs. Once the balconies were waterproofed, installed extra BALCONY EXPANSION JOINTS into the tile surface. If you require a quote or further information PHONE: (03) 8812 2918 or visit our website HTTPS://www.waterproofingfew.com.au. FINDLAY-EVANS WATERPROOFING COMPANY - MELBOURNE COMMERCIAL WATERPROOFERS . Waterproofing specialists using liquid applied membranes for roof, balcony waterproofing systems. Commercial & Industrial waterproofer contractors. The F.E.W Waterproofing Team provide experience for waterproofing membrane applications: - Roof and Rooftops. - Metal, Flat Concrete and Timer Roof Water.proofing - New and Repair Waterproofing Membranes. - Solar, heat reflective waterproofing membranes for roof. - Below ground Tanking. - Basements, Cellars and Foundations. - Above Ground Waterproofing http://www.waterproofingfew.com.au/ HOW TO WATERPROOF A BALCONY: https://www.waterproofingfew.com.au/balcony-waterproofing-method-melbourne/ Facebook:https://www.facebook.com/FEW-Waterproofing-500951300016390/timeline/?ref=hl LinkedIn:https://www.linkedin.com/in/waterproofingfew Google+:https://plus.google.com/u/0/b/106608783322008265641/+WaterproofingfewAu/about/p/pub

[joydomengineering-blog]

HOME REPAIR SERVICES

Toilets, Screen Doors, Drywall, Tile & More

When stuff breaks, we fix it. Our home repairs contractors can save you the time and money it would otherwise cost to find and install a replacement for your broken fixtures and household items. We believe in a convenient, one-call solution where one call can get one of our house repair contractors on the way to fixing whatever you need fixed. Our professional repair services are backed by our Done Right Guarantee.

WITH US YOU KNOW WHAT TO EXPECT

Our home improvement professionals arrive at your home in a nationally recognized uniform and van with all the tools they need to repair your broken fixtures and household items. And if something is beyond repair, we will help you find and install a replacement that fits your home’s specifications and style.

BATHROOM REPAIR

Cracked tile? Drywall holes? If so, do not hesitate to contact the professionals from Mr. Handyman as soon as possible. We can keep this frequently trafficked room looking and working at its best.

CEILING FAN REPAIR

Ceiling fans are not only beautiful, but they can be incredibly useful to the comfort of your home. If your fan is not working properly, do not wait to get our team involved. We can provide fast, effective fixes.

COUNTERTOP REPAIR

If your home’s countertop is starting to show its age—no matter whether it has become dingy, chipped, or otherwise broken—you can count on us. We will show up and make it look as good as new in no time.

DECK & PATIO REPAIR

Decks and patios are a great place to entertain guests, relax, or simply enjoy the outdoors. To make them last though, you need fast repairs. From re-staining the wood to fixing the structure, you can count on us.

DOOR REPAIR

Doors play an overlooked but critical component to the functioning of your home. If they are struggling to open, not keeping drafts out, or are otherwise broken, contact us for the repairs that you need.

DRYWALL REPAIR

Drywall suffer cracks from settling? Fall victim to moisture? Suffer damage from kids or mice? Give it the attention that it deserves by contacting our handymen regarding our fast drywall repair services.

ELECTRICAL REPAIR

If you have a small repair project involving the wiring of your home or different electrical components, and you think it may be overkill to call in an electrician, contact our handymen. We can fix the problem fast!

FAUCET REPAIR

Did you know that a dripping faucet could waste more than 200 gallons of water per month? If you have noticed a leak, give us a call. We can repair the faucet and help you prevent unnecessary spikes in your bills.

FLOORING REPAIR

Damage to your floors is not only unsightly, but it can be dangerous to you and your loved ones. For this reason, you should not hesitate to get in contact with the professional handymen from our team.

FURNITURE REPAIR

Is the wooden furniture around your home starting to show signs of damage or wear and tear? Work with the professional carpenters from the Mr. Handyman team to repair any problems that you see.

GARAGE DOOR REPAIR

If your garage door wakes up the neighbors every time that you open it—or if it doesn’t open up at all—it is time for you to call our professional handymen. Let us cross this item off your to-do list!

GROUT REPAIR

Does the grout in your home look damaged? Skip the headache of trying to fix it yourself and call in our experts. We can repair grout in your bathrooms, kitchen, entryway, basement, laundry room, and more!

GUTTER REPAIR

Broken gutters on your home can cause water to be redirected, which can cause major damage to the drywall, roof, basement, foundation, soffits, and fascia of your home. Get fast fixes from our team!

HANDRAIL REPAIR

Keep your home beautiful—and your family safe—by getting handrails fixed in your home immediately. Our handymen guarantee our workmanship and have an average of 10 years’ experience.

KITCHEN REPAIR

You don’t have to live with broken elements in your kitchen. With our fast, effective repair services, we can make sure that it not only looks its best, but also functions at its best too.

LIGHT FIXTURE REPAIR

Have the light fixtures in your home fallen into a state of disrepair? Make them look their best again by getting in touch with our professional handymen as soon as possible to learn about our repair services.

PATIO REPAIR

If your patio has aged support posts, loose handrails, or pliant wooden boards, it is time to call the professional handymen from our team. We can fix all of these common problems and more.

PLUMBING REPAIR

When the plumbing in your home is not working properly, it’s not only inconvenient—it can completely disrupt your everyday life. Get your routine back on track again with our plumbing repair services.

SLIDING DOOR REPLACEMENT & REAPIR

Is your home’s sliding door broken? No matter whether it has fallen off its tracks or no longer opens properly, our team can help. Improve your home’s curb appeal and functionality with our help.

SHOWER HEAD REPAIR

If your showerhead is leaking, has pressure that is too low, or is otherwise broken, give us a call. All of our technicians have an average of 10 years’ experience and can provide repairs that you can trust.

SINK REPAIR

Our team provides exceptional (and fast!) repair services for sinks of all kinds. From repairing leaks that could cause water damage to dealing with the resulting mold and mildew, you can trust us.

STEPS REPAIR

Don’t let you and your loved ones live with broken steps or stairs in your home. Contact our team and rest easy knowing we guarantee our workmanship, are locally owned, and arrive on time!

TILE REPAIR

From the bathroom to the kitchen to the entryway, our professional handymen can repair the tile in all of the different rooms of your house. The best part? Our workmanship is 100% guaranteed!

TOILET REPAIR

Toilet have a weak flush? Does it flush multiple times in a row? Is it making a dripping noise? Do your tub and sink gurgle when you flush? Contact our technicians today and let us diagnose and repair the problem.

WINDOW FRAME REPAIR

Window frames can boost your home’s curb appeal, but they can also suffer the worst of all the elements. If you have noticed that they are looking worse for the wear, contact us as soon as possible.

WINDOW REPAIR

If you are struggling to close your windows, or if you have noticed that the exteriors are chipped, we can help with professional window repair services. That is no job too small for our team to handle!

WINDOW SCREEN REPAIR

When window screens suffer from serious damage, you should not hesitate to contact Mr. Handyman. All of our technicians have an average of 10 years’ experience. We can fix the problem—and fix it fast.

[smartway4study]

          The most common pumping system used in the process of chemicals having high viscocity is the Gear pump. The gear pump was invented around 1600 by Johannes Kepler.

Design:

          A basic gear pump consists of a rotary housing or casing or stator containing two or more intermeshing gears (Helical and Herringbore gears) or lobed cams. Tight tolerances are required between the casing & gears and between gears (The fluid being pumped will lubricate this small clearence and help prevent friction and therefore wear of the rotors and casing). Atypical housing will have an inlet and outlet, for suction and discahrge respectively. There are two main types of gear pumps: 1) External gear pumps (Exterior bearing type) which use two external gears (Figure 1) and 2) Internal gear pumps (Internal bearing type) which use internal and external gears (Figure 2). The term positive displacement for gear pumps describes, they compel or force a fixed amount of fluid they move for each revolution.

Working:

Ø  In this type of pump, only one of the rotor is driven. The intermeshing gears rotate the other rotor. As the rotors rotate, the liquid or gas, (this type of mechanism can also be used in compressor), enters from the suction line and fills the space between the teeth of the gears and becomes trapped forming small 'Slugs' of fluid between teeth.

Ø  The slugs are then carried round by the rotation of the teeth to the discharge side of the pump.

Ø At this point, the gears mesh together and, as they do so, the fluid is displaced from each cavity by the inermeshing teeth.

Ø  Since the fluid cannot pass the points of near contact of the intermeshed teeth nor between the teeth and casing, it can only pass into the discharge line via the putlet.

Ø  As the rotation continues, the teeth at the suction end are opened up again and the same amount of the fluid will fill the spaces and he process repeated. The liquid at the discharge end is constantly being displaced.

General viscosity range : 2 to 4,00,000 cst (EPW, 2012)

Pump formulas:

· Flow rate in US gal/min = Pump Capacity X rpm

· Power in hp = US gal/min X (lbf/in³)/1714

Types:

1) External Gear Pump:

Image Credits : www.oleoflex.it

          In external gear pump two identical external gears (Figure 1) that displace non-lubricating fluids (gears are oil lubricated). The mecahnism is usually driven by one of the toothed gears, the intermeshing which inturn dives the other (Driven or Idle gear). The both gears are supported by bush bearing or ball bearing it is based on the application of load. The drive gear driven by motor directly through coupling. Drive shaft leak is controlled by gland rope or by mechanical seal. There are three factors in the regulation of flow; Volume of cavity between the teeth, gears speed, and the amount of fluid that slips back to the inlet (tolerance dependent) via the mechanism. There are three main types of external gears: Spur, Helical and Herringbone gears. Helical and Herringbone gears deliver more flow at higher pressure while also being quieter, but many require a great inlet pressure than spur gear.

2) Internal Gear Pump:

          An internal gear pump uses internal and external gears (Figure 2). The gears themselves are lubricated by the fluid, which is of a lubricating nature. The internal design is reliable, easy to operate and maintain- due to the presence of only two moving parts. Only one drive gear is required for the mechanism to function but it is possible to use two. The pump will usually contain at least one bushing. The design can also be modefied to include a cresent shaped portion that improves performance when pumping hugh viscosity fluids. Internal gear pumps have relatively low speed and inlet pressure requirements. 

Considerations:

          Gear pumps are generally operated at high speed and thus give a fairly pulse-free discharge flow and pressure. Where these pumps are operated at slower speeds, as in pumping viscous liquids, the output tends to pulse due to the meshing of the teeth.

          Any air gap drawn into the pump with the liquid, will be carries through with the liquid and will not cause cavitation. This action of the pump means that it is a 'self priming' pump. The discharge pressure may however, fluctuate.

The output from this type of pump is directly proportional to the speed of operation. If the speed is doubled, the output will be doubled and the pressure will have very little effect. (Due to higher pressures, due to the fine clearences between the teeth and between the casing and the rotors, a small leakage back to the suction side will occur resulting in a very small drop in actual flow rate. The higher the discharge pressure, the more likely that internal leakage will occur).

          Rotory pumps are widely used for viscous liquids and are self-lubricating by the fluid being pumped.

          This means that the external source of lubrication can't be used as it would contaminate the fluid being pumped. Gear pumps are capable of moving small suspended solids but due to the meshing of gears they can be damaged by pumping large solids. However, if a rotory pump is used for dirty liquids or slurries, solid particles may act as abrasives, can get between the small clearences and casue wear of the teeth and casing. This will result in loss of efficiency and expensive reapir or replacement of the pump.

          In terms of construction materials, gear pumps can be made form a wide variety of materials, ranging from bronze, iron and stailess steel to cast iron, depending on the application and fluid properties.

OTHER TYPES OF ROTARY PUMPS

The following types of pumps have same charecteristics to the gear pump, they are 

a) Lobe pump

b) Sliding vane pump

c) screw pump

Advantages of Rotary Pumps

· They can deliver liquid to high pressures.

· Self - priming.

· Relatively smooth output, (especially at high speed).

· Positive Acting.

· They can pump viscous liquids.

Disadvantages of Rotary Pumps

· Compared to centrifugal pumps these are more expensive.

· Should not be used for fluids containing suspended solids.

· Wear is more if not pumping viscous material.

· Must NEVER be used with the discharge closed.

Areas:

Marine, Chemical, Petrochemical, Food and General industries.

Applications:

Transfer, lubrication, processing and hydraulic.

Fluids/Materials:

High viscosity fluids, fuel oils, lube oils, various chemicals, resins, paints, pulp, acids, etc.,