The purpose of Back Pressure Valves is to improve the efficiency of chemical feed systems by providing a steady back pressure to the chemical dosing pump. These valves find extensive application in various industries, such as chemical, water treatment, and laboratory. Furthermore, they are compatible with different kinds of corrosive liquids and even air.
Product Body: PVC,PVDF, carbon steel, SS304,SS316L
Adjustable pressure: 0-0.3MPa，0-1.0MPa
Connection type: Thread / Flange, can be customized
The back pressure valve functions as an anti-siphon valve, preventing liquid from flowing or siphoning due to gravity. It can also reduce flow due to siphon and regulate pressure fluctuations. Anti-siphon valves ensure that water flows in one direction only.
Key features of the back pressure valve:
Equipped with a diaphragm structure spring for adjustable pressure
Only the lower valve body and the diaphragm come into contact with the medium, with an assembled sealing rib for excellent sealing effect and high sensitivity
The EPDM lining PTFE with cloth type diaphragm provides exceptional sealing and a long service life. The PTFE diaphragm has superior performance in high-temperature resistance and corrosion resistance.
|Connection type||Thread, flange etc. and can be customized|
|Safety test pressure||1.5 times the maximum input pressure|
|Applicable temperature||-5℃ to +80℃ for EPDM lining PTFE diaphragm|
-5℃ to +80℃ for PTFE diaphragm
|Materials for Lower valve body||PVC,SS304,SS316L,PTFE,PVDF,PP,carbon steel etc|
|materials for diaphragm||EPDM lining PTFE diaphragm，PTFE diaphragm|
|Material for upper valve body||PVC,carbon steel(nickel plated,black oxide etc.), SS304,SS316L|