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304 stainless steel stainless steel screw thread back pressure valve safety valve safety valve genuine stainless steel pressure

price:USD$1900.00
discount 70% in 2018-09-21 to 2018-09-23
price: USD$ 1330.00
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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The back pressure valve / safety valve: the pressure relief pipe, with safety protection function in the system, the pipeline pressure is too high, can play a protective role to prevent the release of pressure, the pump head appears dead phenomenon, process in system maintenance through which liquid recovery. It is recommended that the set pressure of the safety valve is greater than the expected maximum operating pressure of 20%, but not exceeding the maximum pressure of the pump head. Back pressure valve: holding pressure, anti siphon is required to maintain pipeline pressure and flow rate, and high discharge pressure, different from the general pressure relief valve, pressure relief too much, unable to hold the disadvantages. To prevent the siphon phenomenon caused by gravity or other function at the outlet of the pump, to eliminate the flow and pressure fluctuation caused by siphon.

Body material: 304, 316 (acid and alkali resistance)

Working pressure: safety valve 0 - 1.0MPa;

The back pressure valve 00.3MPa

Specifications: DN15, DN20, DN25, DN32, DN40, DN50 and other customized specifications

Connection method: internal thread