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Operating Pressure Control Switch | Boiler Demand Control | Auto Cycling

Operating Pressure Control Switch | Boiler Demand Control | Auto Cycling 

When the boiler stays in the off position at the running time that means no demand exists in the plant. This condition means no steam is used in a process system. At the moment This switch activated it shut down the boiler. 

How much time does it latch shut down condition?

It shut down depending on the time it depends on plant demand. When processing plants use steam quickly boiler pressure is reduced. At a certain limit reach the Operating Pressure Control Switch exchange it switch contract position.

Operating Pressure Control Switch part

It has a Maximum limit range that positions at the moment this switch off the boiler condition.

Another part it maintaining how much pressure goes down it resetting the condition arising this is called differential limit or start position.

Grap of it Mechanism