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  • Well-designed Wafer Type Single Disc Swing Check Valve - Big Size Wafer Type Lift Check Valve – Dongsheng

    Well-designed Wafer Type Single Disc Swing Check Valve - Big Size Wafer Type Lift Check Valve – Dongsheng

    Product Video Product Description Check valves allow flow in one direction and automatically prevent flow in the opposite direction. This valve is mainly used in the fluid system containing strong oxidative mediums, like water supply system, heat supply system and acid system etc. It is always used as accessory of boilers. It has exquisite profile and simple structure. Its spring device functions to speed up the closing movement of the disc so as to eliminate water hammer. This valve is very ...
  • Best Price on Ss Wafer Check Valve - Flanged Silent Check Valve – Dongsheng

    Best Price on Ss Wafer Check Valve - Flanged Silent Check Valve – Dongsheng

    Product Video Product Description Cast Iron Flanged Silent Check Valve provides great sealing capacities for high and low pressure. In particular, industrial and HVAC applications, water, heating, air conditioning and compressed air devices are included. This cast iron flanged silent check valve comes in a body of Cast Iron, epoxy-coated, EPDM seat and Stainless Steel spring. These components make it an economical, secure Standard or Foot Check valve. The valve becomes a fully operational Foo...
  • Cheapest Price Spring Loaded Non Return Valve - DIN3352-F4 New Style Resilient Gate Valve – Dongsheng

    Cheapest Price Spring Loaded Non Return Valve - DIN3352-F4 New Style Resilient Gate Valve – Dongsheng

    Product Video Product Description The soft-seal gate valve is divided into two types: rising stem soft-seal gate valve and non-rising stem soft seal gate valve. Usually there is a trapezoidal thread on the lifting rod, through the nut in the middle of the gate and the guide groove on the valve body, the rotary motion is changed into linear motion, that is, the operating torque is turned into operating thrust. When the valve is opened, when the lift height of the gate is equal to 1:1 times the...
  • Popular Design for Epdm Butterfly Valve - Flanged Butterfly Valve – Dongsheng

    Popular Design for Epdm Butterfly Valve - Flanged Butterfly Valve – Dongsheng

    Product Video Product Description The butterfly valve is a valve that uses a disc-type opening and closing member to reciprocate about 90° to open, close or adjust the flow of the medium. The butterfly valve is not only simple in structure, small in size, light in weight, low in material consumption, small in installation size, small in driving torque, simple and fast in operation, but also has good flow regulation and closing and sealing characteristics at the same time. It has been develope...
  • 100% Original Factory 2 Way Ball Valve - Iron Flanged Ball Valve – Dongsheng

    100% Original Factory 2 Way Ball Valve - Iron Flanged Ball Valve – Dongsheng

    Product Video Product Description Specifications: Cast iron ball valve : Min Temperature : -20°C Cast iron ball valve : Max Temperature :+ 120°C Max Pressure : 16 Bars Specifications : Full bore Hollow stainless ball from DN 50 to DN 200 Ends : EN 1092-2 Flanges Materials : Body: Cast iron body – Cast iron EN GJL-250 Sphere: Stainless Sphere – SS 304 Stem seal with PTFE ring and O-ring EPDM Axis blow-out proof full bore With spacing DIN 3202 Product Parameter   NO. Part Material 1 Bo...
  • China OEM Weir Diaphragm Valve - Rising Stem Diaphragm Valve(Black) – Dongsheng

    China OEM Weir Diaphragm Valve - Rising Stem Diaphragm Valve(Black) – Dongsheng

    Product Video Product Description Diaphragm Valves have two kinds of types, wire and full flow, which use a ‘pinching’ method to stop the valve flow using a flexible diaphragm.These types of valves are generally not suited for very high-temperature fluids and are mainly used on liquid systems. Our company sticks to the principle of “Quality is the life of the company, and reputation is the soul of it” for China DIN Flange Cast Iron Diaphragm Valve Rising Stem GG25 Body, All produc...
  • OEM Factory for Saunders Weir Type Diaphragm Valve - Rising Stem Diaphragm Valve(Black) – Dongsheng

    OEM Factory for Saunders Weir Type Diaphragm Valve - Rising Stem Diaphragm Valve(Black) – Dongsheng

    Product Video Product Description Diaphragm Valves have two kinds of types, wire and full flow, which use a ‘pinching’ method to stop the valve flow using a flexible diaphragm.These types of valves are generally not suited for very high-temperature fluids and are mainly used on liquid systems. Our company sticks to the principle of “Quality is the life of the company, and reputation is the soul of it” for China DIN Flange Cast Iron Diaphragm Valve Rising Stem GG25 Body, All produc...
  • OEM/ODM Supplier Rubber Lined Diaphragm Valve - Rising Stem Diaphragm Valve(Blue) – Dongsheng

    OEM/ODM Supplier Rubber Lined Diaphragm Valve - Rising Stem Diaphragm Valve(Blue) – Dongsheng

    Product Video Product Description Diaphragm Valves have two kinds of types, wire and full flow, which use a ‘pinching’ method to stop the valve flow using a flexible diaphragm.These types of valves are generally not suited for very high-temperature fluids and are mainly used on liquid systems. We’ll make every effort and hard work to be superb and excellent, and speed up our steps for standing inside the rank of international top-grade and high-tech enterprises for New Style China DN300...
  • OEM Factory for Saunders Weir Type Diaphragm Valve - Rising Stem Diaphragm Valve(Blue) – Dongsheng

    OEM Factory for Saunders Weir Type Diaphragm Valve - Rising Stem Diaphragm Valve(Blue) – Dongsheng

    Product Video Product Description Diaphragm Valves have two kinds of types, wire and full flow, which use a ‘pinching’ method to stop the valve flow using a flexible diaphragm.These types of valves are generally not suited for very high-temperature fluids and are mainly used on liquid systems. We’ll make every effort and hard work to be superb and excellent, and speed up our steps for standing inside the rank of international top-grade and high-tech enterprises for New Style China DN300...
  • Special Price for Wafer Disc Check Valve - Cast Iron Double Disc Swing Check Valve – Dongsheng

    Special Price for Wafer Disc Check Valve - Cast Iron Double Disc Swing Check Valve – Dongsheng

    Product Video Product Description The function of the dual plates check valve is to only allow the medium to flow in one direction and prevent the flow in one direction. Usually this kind of valve works automatically. Under the action of the fluid pressure flowing in one direction, the valve flap opens; when the fluid flows in the opposite direction, the fluid pressure and the self-coincidence of the valve flap act on the valve seat, thereby cutting off the flow. Structural Features of Wafer ...
  • OEM Supply Dual Wafer Check Valve - Thin Single Disc Swing Check Valve – Dongsheng

    OEM Supply Dual Wafer Check Valve - Thin Single Disc Swing Check Valve – Dongsheng

    Product Video Product Description Carbon Steel Thin Type Check Valve with economical, space-saving spring, it comes with Carbon Steel body and NBR O-ring seal, general used for water, heating, air conditioning and compressed air devices. Key features: Available in sizes: 1 1/2″ to 24“. Temperature range: 0°C to 135°C. Pressure rating: 16 Bar. Low head loss. Space saving design. For full details please download the technical datasheet. Swing Check Valve Carbon Steel body Wafer P...
  • Manufacturer for Butterfly Type Check Valve - Flanged Ball Check Valve – Dongsheng

    Manufacturer for Butterfly Type Check Valve - Flanged Ball Check Valve – Dongsheng

    Product Video Product Description Ball Check Valve –Ball check valve is a kind of check valve with multi-ball, multi-channel, multi-cone inverted flow structure, mainly composed of front and rear valve bodies, rubber balls, cones, etc. The ball check valve uses a rubber-covered rolling ball as the valve disc. Under the action of the medium, it can roll up and down on the integral slide of the valve body to open or close the valve, with good sealing performance and noise reduction The city is ...