discount 70% in 2018-09-24 to 2018-09-26
price: USD$ 1666.00
freight :USD$7.00,(Postal parcel)
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Telephone number: 18323377790
ZY47 series of self operated pressure control valve is a valve with a hydraulic balance automatic constant pressure differential, used in central heating, central air conditioning water system, is conducive to the controlled system and the user terminal device self-regulation, especially suitable for household metering heating system and air conditioning system.
Structure and characteristics:
The main body of the ZY47 type self pressure differential control valve is composed of a double channel automatic control valve which can change the flow resistance and a controller composed of two independent chambers separated by the diaphragm, and the side chamber is connected with the backwater pipe. When installed, it is installed on the return water pipeline. The channel automatic control valve is the actuator, and its action power comes from the pressure difference between the water supply pressure P1 and the backwater pressure P2. The controller is a differential pressure comparator, the pressure difference is selected according to the resistance of the controlled heating system, and the spring reaction force in the backwater side is used to balance the pressure difference between the water supply and the backwater. When some users of the controlled heating system adjust the room temperature. When the resistance increases or decreases, it will cause the change of circulating flow, until the pressure balance between the two sides of the diaphragm, so that the internal control system is automatically adjusted.
As far as possible, the selection of diameter should be considered when the flow rate is too low. The control valve guide pipe is connected with 1 / 2 pipe thread, and the length of the guide pipe is 15m. Connecting water supply pipe. The valve is divided into constant pressure difference and adjustable pressure difference type of two. Nominal pressure: 16Mpa, medium temperature O-120