Qingdao Zhaoyuqi Machinery Co., Ltd.

  • Jan14

    Product Introduction:Check Valve

    Material:Grey iron,Ductile iron Order:OEM according customers'drawings Castings:sand casting Check Valve is a compact, cost effective valve, designed for use in grooved-end pipe fire protection systems and related equipment. Valves are to be used in conjunction with grooved pipe and pipe couplings that are listed or approved for fire protection systems.

  • Jan13

    Product Introduction:Concentric Reducer

    Material:Grey iron,Ductile iron Order:OEM according customers'drawings Castings:sand casting Grooved Couplings and Fittings provide a rigid or flexible pipe connection for fire protection systems with dependable seals over a range of internal pressure situations.

  • Jan09

    Product Introduction:Drain Elbow

    Material:Grey iron,Ductile iron Order:OEM according customers'drawings Castings:sand casting Grooved Couplings and Fittings provide a rigid or flexible pipe connection for fire protection systems with dependable seals over a range of internal pressure situations.

  • Jan08

    Product Introduction:Check Valve

    Material:Grey iron,Ductile iron Order:OEM according customers'drawings Castings:sand casting Check Valve is a compact, cost effective valve offering low pressure-drop, non-slam performance. The Series 7800 Check Valve assembly is lighter and faster to install, and costs less than flanged and wafer valve assemblies. In the fully open position the swing clapper is held tightly against the valve body, out of the flow stream, to provide maximum flow area and prevention of clapper flutter. The clapper design produces quick, non-slam closure before flow reversal can occur, while meeting FM requirements for an anti-water hammer valve rating. Each valve is hydrostatically tested for leak tightness to 500 PSI. The clapper-seat design permits leak free sealing of back pressures in service conditions ranging from 300 PSI (20.7 bar) to as low as 1 PSI (0.07 bar) (head pressure: 28").

  • Jan07

    Product Introduction:Grooved Flange Adapter

    Material:Grey iron,Ductile iron Order:OEM according customers'drawings Castings:sand casting The Flange allows direct connection of Class 125 or Class 150 flanged components to a grooved piping system. The two interlocking halves of the Flange are hinged for ease of handling, and are drawn together by a latch bolt, which eases assembly on the pipe. Precision machined bolt holes, key and mating surfaces assure concentricity and flatness to provide exact fit-up with flanged, lug, and wafer styles of pipe system equipment. A specially designed gasket provides a leak-tight seal on both the pipe and the mating flange face. All Flanges have designed-in anti-rotation tines which bite into and grip the sides of the pipe grooves to provide a secure, rigid connection. The Flange requires the use of a steel adapter insert when used against rubber faced surfaces, wafer/lug design valves and serrated or irregular sealing surfaces.

  • Jan06

    Product Introduction:Ductile Iron Flanged Eccentric Reducer

    Material:Grey iron,Ductile iron Order:OEM according customers'drawings Castings:sand casting Ductile Iron Flanged Eccentric Reducer. Galvanizing available upon request.

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nico@zyqfoundry.com

82b6bea3fa8b013700d5b8cb6263e9a
82b6bea3fa8b013700d5b8cb6263e9a

86-18561567088

86-18561567088