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Product Name: T-type Sing Orifice Air Release Exhaust Valve Model NO.: FSV-019 Certification: ISO9001, GS, FM Material: Ductile Iron/Cast Iron Type: Double Orifice/Single Orifice Name: Double Orifice Air Release Valves Body: Ductile Iron/Cast Iron Stem: SS304/420 Float Ball: Plastic ABS/SS304 Flanged: BS4504/DIN2532 Dust Cap: Ductile Iron/Cast Iron Screw Plug: Brass Nut: Steel Gasket: EPDM Trademark: WALTER Transport Package: Bubble Bags & Wooden Case Specification: DN15-DN300 Origin: Suzhou, Jiangsu HS Code: 84818040 Product Description Cast Iron Double Orifice/Single Orifice Air Release ValvesThere is a large and a small orifices. The large one can intake and release large amount of air. The air way of the large orifice is sym-metrical which makes the air releasing amount more than that of the same size double orifices air releasing valveMaterials:1Body/BonnetDuctile Iron2Float BallPlastic ABS3GasketEPDM4Dust CapDuctile Iron5Screw PlugBrass6NutSteelDimension (mm)Code No.SizeDNLABDKn-Φd PN10n-Φd PN16TARV-00502"50125166861651254-Ф194-Ф19TARV-006521/2"65125166861851454-Ф194-Ф19TARV-00803"801252401122001608-Ф198-Ф19TARV-01004"1001252651282201808-Ф198-Ф19TARV-01255"1251252651282502108-Ф198-Ф19TARV-01506"1501252651282852408-Ф238-Ф23TARV-02008"2001252651283402958-Ф2312-Ф23TARV-025010"25012526512840535512-Ф2312-Ф28TARV-030012"30012526512846041012-Ф2312-Ф28Walter-FSV Company can supply OEM service for OS&Y Gate Valve, NRS Gate Valve, Doube Flanged Butterfly Valve, Double Flanged Sulice Valve, Wafer Butterfly Valve, Pressure Reducing Valve, Pressure Relief Valve, Float Control Valve, Flap Disc Check Valve, Swing Check Valve, Silent Check Valve, Y strainer, Foot Valve. Ect...Welcome your enquiry for more details information.