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  • Manufactur standard Disc Type Check Valve - Threaded Ball Check Valve – Dongsheng

    Manufactur standard Disc Type Check Valve - Threaded Ball Check Valve – Dongsheng

    Product Video Product Description The threaded ball check valve is widely used in wastewater, dirty water or high-concentration suspended solid water pipelines. Obviously, it can also be applied to drinking water pressurized pipelines. The temperature of the medium is 0~80℃. It is designed with very low load loss due to total passage and impossible obstacles. It is also a waterproof and maintenance-free valve. Ductile Iron, epoxy-coated body and bonnet, NBR/EPDM seat and NBR/EPDM-coated alum...
  • Factory Free sample Silent Check Valve - DIN3202-F6 Swing Check Valve – Dongsheng

    Factory Free sample Silent Check Valve - DIN3202-F6 Swing Check Valve – Dongsheng

    Product Video Product Description Our Ductile Iron Swing Check Valve Flanged PN16 provides great sealing capacities for low pressure; uses of this check valve include water, heating, air conditioning and compressed air devices. Ductile Iron body and metal cover, both covered with epoxy, having a brass seat. Either vertically (only upwards) or horizontally installed Key features: Available sizes: 2″ up to 12″. Temperature range: -10°C to 120°C. Pressure rating: PN16 rated Low crac...
  • High reputation Dual Disc Check Valve - Wafer Silent Check Valve – Dongsheng

    High reputation Dual Disc Check Valve - Wafer Silent Check Valve – Dongsheng

    Product Video Product Description The silent check valves with a cast iron body, use a fully automatic spring assisted discs to eliminate water hammer while preventing flow reversal in the piping. The spring closure acts faster than that swing check valves, which can slam shut with the flow reversal. The wafer type body design is compact, versatile, and fits inside of the bolting in a flanged connection. For 2″ to 10″ diameters, the 125# wafer design allows for mating to either 12...
  • Hot New Products Cast Iron Check Valve - Stainless Steel Single Disc Swing Check Valve – Dongsheng

    Hot New Products Cast Iron Check Valve - Stainless Steel Single Disc Swing Check Valve – Dongsheng

    Product Video Product Description Check Valves are automatic shut-off valves that are commonly used for preventing back flow or drainage in a piping system. Often applied on the discharge side of pumps, check valves prevent the system from draining if the pump stops and protect against back flow, which could harm the pump or other equipment. Wafer Type Single Disc Swing Check Valves are designed for installation in flanged piping systems, between two flanges. Valves may be installed in vertic...
  • Factory wholesale Disc Check Valve - DIN3202-F6 Swing Check Valve – Dongsheng

    Factory wholesale Disc Check Valve - DIN3202-F6 Swing Check Valve – Dongsheng

    Product Video Product Description Our Ductile Iron Swing Check Valve Flanged PN16 provides great sealing capacities for low pressure; uses of this check valve include water, heating, air conditioning and compressed air devices. Ductile Iron body and metal cover, both covered with epoxy, having a brass seat. Either vertically (only upwards) or horizontally installed Key features: Available sizes: 2″ up to 12″. Temperature range: -10°C to 120°C. Pressure rating: PN16 rated Low crac...
  • Reasonable price for Flange Valve - DIN3352-F4 Resilient Gate Valve – Dongsheng

    Reasonable price for Flange Valve - DIN3352-F4 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...
  • OEM/ODM China Check Valve Manufacturer - Big Size Wafer Type Lift Check Valve – Dongsheng

    OEM/ODM China Check Valve Manufacturer - 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 ...
  • Manufactur standard Lug Type Check Valve - Threaded Ball Check Valve – Dongsheng

    Manufactur standard Lug Type Check Valve - Threaded Ball Check Valve – Dongsheng

    Product Video Product Description The threaded ball check valve is widely used in wastewater, dirty water or high-concentration suspended solid water pipelines. Obviously, it can also be applied to drinking water pressurized pipelines. The temperature of the medium is 0~80℃. It is designed with very low load loss due to total passage and impossible obstacles. It is also a waterproof and maintenance-free valve. Ductile Iron, epoxy-coated body and bonnet, NBR/EPDM seat and NBR/EPDM-coated alum...
  • 2021 High quality Manual Ball Valve - 1pc Threaded Ball Valve – Dongsheng

    2021 High quality Manual Ball Valve - 1pc Threaded Ball Valve – Dongsheng

    Product Video Product Description Stainless Steel Ball Valve is a non-maintainable one piece, reduced bore ball valve; providing reliable functioning for both general and industrial chemical applications. An economical, compact and reliable, female/female ball valve with CF8/CF8M Stainless Steel valve body and PTFE seat. Used to ‘shut-off’ medium flows on a wide range of liquid and gaseous duties including drain and blow down, gauge isolation and test points. Features a blow-out p...
  • 100% Original Double Plate Check Valve - BS5153 Swing Check Valve – Dongsheng

    100% Original Double Plate Check Valve - BS5153 Swing Check Valve – Dongsheng

    Product Video Product parameter NO. Part Material 1 Body GG20/GG25/GGG40/GGG50 2 Bonnet GG20/GG25/GGG40/GGG50 3 Disc GG20/GG25/GGG40/GGG50 with Brass/Bronze/Stainless steel 4 Seat Brass/Bronze/Stainless steel 5 Pin 2CR13  SS304 DN 50 65 80 100 125 150 200 250 300 L 203 216 241 292 330 356 495 622 698 D PN10 165 185 200 220 250 285 340 395 445 PN16 405 460 D1 PN10 125 145 160 180 210 240 295 350 400 PN16 355 410 D2 PN10 102 122 138 158 188 212 268 320 370 PN1...
  • Factory wholesale Diaphragm Valve Manufacturers - Rising Stem Diaphragm Valve(Blue) – Dongsheng

    Factory wholesale Diaphragm Valve Manufacturers - 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...
  • Factory Free sample Silent Check Valve - Wafer Silent Check Valve – Dongsheng

    Factory Free sample Silent Check Valve - Wafer Silent Check Valve – Dongsheng

    Product Video Product Description The silent check valves with a cast iron body, use a fully automatic spring assisted discs to eliminate water hammer while preventing flow reversal in the piping. The spring closure acts faster than that swing check valves, which can slam shut with the flow reversal. The wafer type body design is compact, versatile, and fits inside of the bolting in a flanged connection. For 2″ to 10″ diameters, the 125# wafer design allows for mating to either 12...