Product name: Pneumatic cut-off valve
Product Model：QDQ641F
Nominal Diameter：50～300mm
Nominal Pressure：1.6～4.0MPa
Suitable Medium：Natural gas, liquefied
petrol-eumgas, liquid ammonia
Suitable Temperature：-40～+80℃
Next product：Gas cut-off valve
Backe product：Pneumatic emergency cut-off valve
