Model Number:QF series
Working Pressure:150BAR
Suitable Medium:Oxygen, Clean Air and Nitrogen
Nominal Diameter:4mm
Outlet Thread:G5/8
Connection Thread:PZ27.8
Surface:Brass/Chromed
Valve Material:Brass
we are mainly produce
LPG valve
gas cylinder valve
QF-28A valve
oxygen gas cylinder valve
argon gas cylinder valve
40L oxygen gas cylinder valve
oxygen gas cylinder valve
seamless gas cylinder valve
gas cylinder valve
LPG gas cyllinder valve
Brass Oxygen Hydrogen Helium Argon Gas Cylinder Valve (QF/CGA)
2014 Oxygen Gas Cylinder Valve
CGA300 Medical Gas Cylinder Valve
2014 High Pressure Nitrogen Gas Cylinder Valve (QF-7B)
Industrial High Pressure Gas Cylinder Valve (QF-7B)
Brass Oxygen Hydrogen Helium Argon Gas Cylinder Valve (QF/CGA)
 
Company introduction:
NINGBO DSW INDUSTRY CO.,LTD established in 1998. we produce the following gas: 99.999% and 99.995% helium were 99.9% and 99.999%, 
99.9% and 99.999% of the laughing gas, the carbon monoxide were 99.9993% and 99.999%, 99.9993% and 99.999% of argon gas, and 99.995%
 hydrogen, 99.995% and 99.999% nitrogen, 99.999% and 99.99% were 99.999% and 99.995% and 99.999% of carbon dioxide, methane, 99.999%
 and 99.998%, and 99.999% of the oxygen, or more than 99.9% of acetylene, and so on.
So far our products are enjoying good markets at home and exporting to Asia, Middle East ,South America and European and as well as West Africa.