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1.Gas type: natural gas, LPG
2.Diameter of gas valve:18mm
3.Voltage of solenoid valve: ＜DC3V
4.Air tightness: leakage＜0.03L/H
5.Start: water pressure≥0.02MPa
6.No relief valve device
7.Work temperature: -20－60℃
Gas water heater valve-zero water pressure valve
