Standard: GJ/t3005

Nominal pressure: PN0.25-1.0Mpa

Nominal diameter: DN250 -1400mm

Suitable medium: coal gas and other flammable gas

Suitable temperature: ≤ 120 ℃

Materials: ray cast iron 、 ductile iron

Sealing materials: cast iron to cast iron

Leakage rate: GB/T13927 Class A

Operating mode: manual 、 electric

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.