Product Name: TD341W Worm Gear Ventilation Butterfly Valve Model: TD341W Diameter: 300 ~ 4000mm Pressure: 0.05 ~ 0.1MPa Material: Cast Steel, Stainless Steel TD341W Worm Gear Ventilation Butterfly Valve Main Specifications Nominal Pressure (MPa) 0.05MPa Medium Temperature -30 ℃ ~ -350 ℃ strength test 0.1MPa Applicable medium hot and cold wind, flue gas medium flow rate 25m / s Leakage rate 3% TD341W worm gear main components and parts of the valve material name: body valve plate valve shaft material: carbon steel carbon steel, stainless steel Keyword Search: Zhejiang four-way butterfly valve supply information