Self-reliance type differential pressure flow control balance pneumatic valve structure characteristics

self-reliance type differential pressure flow control balance pneumatic valve is a kind of automatic constant differential pressure balance with pneumatic valve, hydraulic project condition is applied to the central arch heat, central air conditioning water system, is advantageous to the controlled system autonomic regulation of each user and the terminal device is especially suitable for household metering heating system and variable flow air conditioning system
self-reliance type differential pressure flow balance control pneumatic valve body is made can change the flow resistance of dual channel automatically adjust the pneumatic valve and by diaphragm separated into two independent small room controller, on one side of the chamber and backwater pipes are interlinked. When using installed on the return water pipe. Channel automatically adjust the pneumatic valve actuator, its action power derived from the supply pressure P and return water pressure the pressure differential between the P. Controller is a pressure differential comparator, the differential pressure value is according to the resistance selection is accused of heating system, the spring force within the backwater side are used to the pressure difference between the balance between water supply and water. When some users accused of heating system which can adjust the room temperature, resistance to increase or decrease, can cause circulation flow changes, until the pressure on both sides of the diaphragm balance, cause the internal automatic adjustment control system.