Type: Air Release Valves & Vents, Single orifice Customized support: OEM, ODM Place of Origin: Tianjin Brand Name:TWS Model Number: GPQW4X-10Q Application: General Temperature of Media: Low Temperature, Medium Temperature, Normal Temperature Power: Manual Media: Water Port Size: DN40-DN300 Structure: Air Valve Product name: Air Vent Valve Standard or Nonstandard: Standard Body material: Ductile Iron/Cast Iron/GG25 Working pressure: PN10 / PN16 PN: 1.0-1.6MPA гэрчилгээ: ISO, SGS, CE, CE, WRA ...