Type RZ48W(r)-town gas valve |
Standard: GJ/t3005 Nominal pressure: PN0.25-1.0Mpa Nominal diameter: DN250 -1400mm Suitable medium: coal gas and other flammable gas Suitable temperature120 Materials: ray cast ironductile iron Sealing materials: cast iron to cast iron Leakage rate: GB/T13927 Class A Operating mode: manualelectric Gate equipped with rove which can be filled with grease after close to ensure sealing performance. There equipped with sheathing at bottom of operating nut to avoid coking of thread and the gate can automatically scurf coke deposited on bode seat when close. Stem does not rise when open. The valve is the best equipment of town gas pipe. |
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