Standard: GB12232

Nominal pressure: PN0.25-1.0Mpa

Nominal diameter: DN200 -600mm

Suitable media: coal gas 、 natural gas 、 smoke gas

Suitable temperature: ≤ 120 ℃

Materials: body/bonnet-gray cast iron 、 ductile iron 、 gate/stem-SS

Sealing materials: SS to PIFE

Leakage rate: GB/T13927 Class A

Operating mode: manual 、 electric

Some problems such as leakage, coke deposition on the aged buried gate valves and its substitutions in coal gas and natural gas transmission pipelines which make the valve un-open or un-sealing have been worried users for years and is difficult for valve manufacturers to solve. In recent years, we, on basis of experience of foreign countries, through many times of trial-manufacture, produce the said series of gate valves in advance, and the valves have overcome the aforesaid problems.