Zhejiang Hengsen Industrial Group Co.,Ltd are a leading, professional exporter of fittings for refrigeration fittings, HVAC controls products, auto air-conditioner fittings, copper fittings, and disperse pipes in china. And we have been about 20 years experience. We will provide the best products and service for you.
We are able to produce all kinds of goods in accordance with your special OEM/ODM requirements.
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Product introduction
HLD pressure differential controller is available for water system of central air-conditioning. It controls the pressure difference between supply water pipe and return water pipe. This product equipped with a contactor of single tool double throw floating type. Motor actuator will operate valve after floating contacts connect contact plate. For example, install the valve into the bypass pipes around system's water pump. When the pressure difference between return pipes exceeds the set data, the valve will be open bigger to make more water come into the valve, then the pressure between water pipes will be decreased. On the contrary, the return water pipes' pressure difference will be increased.
Production summary
Suit for the cryogens of Freon, air and water. ( fluid temperature: -45º C~+120º C)
Adjustable pressure difference range of controller.
Inching switch makes sure of reliable conversion function.
Deft installation board suits for different situation.
It can be used to water system. Control the pressure difference of inlet and outlet ends to arrive a constant flux.
The controller can bear high working pressure. So it can be used as oil pressure protection equipment of screw refrigeration compressor.
No retarding device pressure differential controller (cooling water). Time device pressure differential controller (oil pressure protection)
If the system is used for the corrosive medium like phosphorus and bronze, please illustrate it the factory. We will suggest you the appropriate type.
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