American standard CGA540 Oxygen Cylinder  valve works through adjusting spring force to prevent medium pressure and realize sealing purpose. Under the condition of spring force greater than medium's normal pressure, valve disc is at the close state, when medium pressure exceeds the set pressure, the spring is compressed, and lead the disc sealing faces separated, the valve open automatically, and relief pressure; When medium pressure reduced to normal pressure, the valve disc go back to valve seat under the spring force, disc sealing faces and valve seat sealed again, the valves close automatically.   Working Pressure:150BAR
QF-2 Oxygen Cylinder O2 valve is Suitable Medium:Oxygen, Clean Air and Nitrogen

Fow rate: 1-10L/min, 1-15L/min

Specifications:
Gas type: Oxygen
Input Pressure: 15Mpa;
Outlet Pressure: 0.2-0.3Mpa;
 
Inlet thread:
G5/8-14-RH
CGA540-RH
G3/4-14-RH
 
Output thread: 8mm
Flow rate: 1-10L/min, 1-15L/min
Humidifier capacity: 200ml
With safety valve
Autoclavable, max temperature 121 degree