Standard: GB12232

Nominal pressure: PN0.1Mpa

Nominal diameter: DN300 -2000mm

Suitable medium: coal gas

Suitable temperature: ≤ 120 ℃

Materials: gray cast iron

Sealing materials: cast iron to cast iron 、 SS to SS

Leakage rate: GB/T13927 (ISO5208)Class B

Operating mode: manual 、 electric