Reversed flow of qi check valve technology parameters

Smoke reversed flow of qi check valve sealing surface surfacing Cr13 stainless steel or cobalt-based hard alloy, have good wear resistance, stable and reliable sealing performance. Heavy hammer through extension rod and fork on the pin shaft, used to balance and rocker heavy torque and prevent the occurrence of water hammer. When the medium flows forward, help to open the valve, and keep the valve in the running smoothly and reducing vibration. When positive flow medium, inferior vena cylinder inlet, together with a heavy hammer, balance disc is located in the full open position. When the reverse flow of the medium, reversed flow of qi check valve cylinder piston inferior vena rapid pressure release, the disc at 0. 5 seconds down quickly. Reversed flow of qi check valve technology parameters: nominal diameter: DN200 - 1000 mm nominal pressure: PN0. 6 - 10. 0 mpa working temperature: 200 510 ° C extraction check valve body material: body valve rocker cover: WCB, WC6, WC9 stem: 2 cr13, CrMoV