Tag Archives: pvc ball valve

Correct choice of the type of liquid ammonia emergency shut-off valve

Emergency shut-off valve using ammonia gas source (air, nitrogen) and the solenoid valve to control the valve opening – closed,

widely used in gas, ammonia or corrosive gas tank weak import and export and pipeline.

Type: normally open / normally closed / manual with air / pneumatic double-acting
pvc check valve
Body material: cast just stainless steel. 304,316,316 L

1 / normally open shut-off valve: solenoid valve power inlet, pressure to close the valve. Close the exhaust valve, the valve back on.

2 / normally closed shut-off valve: solenoid valve power inlet, open the valve, solenoid valve power exhaust, the valve automatically

closes.
silent check valve
3 / manually with pneumatic shut-off valve: in the absence of gas / power supply in the case, you can manually turn on / off shut-off

valve.

Maintenance:

1 / pneumatic cylinder shut-off valve opening pressure of ≥ 0.3-0.6Mpa, the cylinder pressure of daily work, not less than 0.4MPa, to

ensure the normal operation of the valve.

2 / Operating Temperature: -15 ~ 60 ℃

3 / medium flowing through the valve body should be free of impurities and grain-free gas.