Year1
- 材质：
- 铸铁
- 型号：
- ZYF
- 规格：
- DN15-DN350
National patent number: .(Counterfeiting will be investigated)
Adjustable differential pressure control valve, also known as differential pressure balancing valve, differential pressure regulating valve, differential pressure valve.
The adjustable pressure difference control valve does not require external energy. It relies on the pressure change of the adjusted medium to automatically adjust, automatically eliminates the residual pressure head of the pipe network and the flow changes caused by pressure fluctuations, and maintains a constant user inlet and outlet pressure difference. , helps to stabilize system operation.
The adjustable pressure difference control valve is particularly suitable for household metering or automatic control systems.
Adjustable differential pressure control valve performance and characteristics:
This valve has a double-flap structure, a small unbalanced force on the valve stem, and a compact structure. It is used in heating (air conditioning) water series and is a constantly controlled system. pressure difference, and has the following characteristics:
, constant pressure difference of the controlled system
, support internal independent adjustment of the controlled system
, absorb fluctuations in the pressure difference of the external network
, adopt The advanced stepless pressure regulating structure can control the pressure difference with an adjustable ratio of up to:
. It has the function of automatically eliminating blockage
. The flange size complies with B. medium gray cast iron flange size.
How to use the adjustable differential pressure control valve:
The direction of medium flow should be consistent with the direction of the arrow on the valve body
The adjustable differential pressure control valve should be installed on the return pipe, and the valve should be connected The other end of the pressure guide pipe is connected to the water supply pipe. It is recommended to install a ball valve on the water supply end of the pressure guide pipe to start the clogging elimination function
. A filter should be installed on the water supply pipe in front of the pressure guide pipe. , to avoid the valve losing its automatic adjustment function due to poor water quality
. Pressure gauges should be installed on the water supply pipe and the return pipe in front of the valve to facilitate adjustment and control of the pressure difference
. If the flow of the system is found to be too large or too small. The possible reason is that debris stuck on the valve plug during the installation of pipeline components. You can close the /& ball valve for 1 minute. At this time, if the blockage is minor, it will be automatically eliminated. If it cannot be eliminated, then Disassemble the valve, check to eliminate blockages and control the pressure difference. Adjustment method: adjust the pressure regulating valve stem counterclockwise and observe the pressure difference.
Technical parameters of adjustable pressure difference control valve:
, nominal pressure:.
, medium temperature: ℃
, working pressure difference range:.
, control pressure Differential setting value:. Adjustable range of control pressure difference..
, Length of pressure guiding pipe:.
, Size of pressure guiding pipe connection end: /& pipe thread
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