Zhejiang Guanlong Machinery Valve Co., Ltd.  

Product Name: Wafer Non Return Swing Flapper Check Valve (H77) Model NO.: H77 Application: Industrial Usage, Water Industrial Usage Standard: ANSI, API, DIN, BS, GB etc Flow Direction: Unidirection Sealing Form: Rubber Sealing / metal Sealing Function: Nrvr Silence, Nrvz Silence, Nrvg Silence Pressure: Ordinary Pressure Structure: Swing Connection Form: Wafer Material: CS, Ss, Brass, Chrome-Molybdenum Steel Certificate: ISO, Ce Pressure Rating: Pn10~Pn40(Cl150~Cl300) Medium Applicable: Water, Oil, Medium Containing Acid or Alkali Trademark: KARFAR Transport Package: Bubble Plastic Paper + Plywood Case Specification: DN80 ~ DN1000 Origin: China HS Code: 84813000 Product Description Wafer End Spring Loaded Non Return Check ValveModel NO.: H77H/Y-C, H77X, H77WΔSimple and compact structure.ΔLight weightΔSmooth on&offΔEasy assembly and maintenanceΔReliable sealing performance.ΔZero leakage tightness with 20000 times on&off service lifeΔMinimized resistance with streamline structureΔOffset structure disc has small torque. The short closing distanace of the disc leads to quick close and non-slam quite effect.Technical standards:1) Design and manufacture: API 6D2) Face-to-face: ANSI B16.103) Flange end: ANSI B16.54) Inspection and test: API 598Medium applicableWater, Oil, Medium containing acid or alkaliMain materialCAST IRON, ASTM A216 WCB, WCC, WC6, SS304, SS316, CF8, ETC.Temperature applicable≤250ºCNominal PressurePN10~PN40(CL150~CL300)Nominal DiameterDN80-DN1000Face to Face LengthANSI B16.10, API594,BS5155, ISO5752, DIN3352 etc.Wafer End Check Valve Group Show