DRQF-DN25~DN300
The main technical parameters:
◆Applicable gas: city gas (natural gas, artificial gas, liquefied petroleum gas, etc.)◆The way of closing the valve:
1. Signal-driven automatic valve closing (drive voltage AC220V pulse, DC24V pulse optional)
2. Manually close the valve
◆Valve body material: aluminum alloy
◆Nominal pressure: PN16 (flange)
◆Power consumption: clockwise <20VA
◆Sealing material: NBR rubber. FKM rubber (ordering instructions required)
◆Valve closing time: less than 5 seconds
◆Maximum working pressure: 0.1Mpa.0.4Mpa (ordering instructions required)
◆Connection method: flange connection or threaded connection
◆Lead wire length: >1m
◆Valve opening method: manual reset
Normal working conditions:
◆Atmospheric pressure 80～110KPa:
◆Ambient temperature -20℃～+60℃
◆The relative humidity of the surrounding air is 5%～90% (at +25%):
◆Places in Zone 1 and Zone 2 containing explosive gas mixtures of grades ⅡA and ⅡB, T1～T6:
◆In a place where there is no significant shaking and shock vibration;
