Qingdao Zhaoyuqi Machinery Co., Ltd.

  • Feb10

    Product Introduction:Fire Protection Butterfly Valve

    Material:Grey iron,Ductile iron Order:OEM according customers'drawings Castings:sand casting The valve is supplied with two internal switches. One is wired for supervisory service and the other is wired for use as an auxiliary switch. Both switches are rated for 11 amp at 125, 250 VAC and 0.5 amp at 125 VDC, 0.25 amp at 250 VDC. The switches and actuator internal spaces are protected from tampering. The ductile iron valve body is encapsulated with a durable nylon coating to ensure long term service. The valve features double-seal disc design with resilient EPDM coating, and stems are 416 stainless steel. Detailed instructions for valve installation and switch wiring are included with each valve.

  • Feb08

    Product Introduction:Threaded Mechanical Branch Tee

    Material:Grey iron,Ductile iron Order:OEM according customers'drawings Castings:sand casting Uses steel plated U-bolts to save space and facilitate installation in tight spaces. Ideal for direct connection to sprinklers and spouts.

  • 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").

0

nico@zyqfoundry.com

82b6bea3fa8b013700d5b8cb6263e9a
82b6bea3fa8b013700d5b8cb6263e9a

86-18561567088

86-18561567088