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  • Good Quality 2 Inch Silent Check Valve - Big Size Wafer Type Lift Check Valve – Dongsheng

    Good Quality 2 Inch Silent 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 ...
  • OEM Factory for Flanged Ball Check Valve - Stainless Steel Single Disc Swing Check Valve – Dongsheng

    OEM Factory for Flanged Ball 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...
  • Professional Design Flanged Foot Valve - DIN3352-F4 Resilient Gate Valve – Dongsheng

    Professional Design Flanged Foot 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...
  • China Factory for Wafer Style Check Valve - DIN3202-F6 Swing Check Valve – Dongsheng

    China Factory for Wafer Style 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...
  • Discountable price Lever Operated Butterfly Valve - Flanged Butterfly Valve – Dongsheng

    Discountable price Lever Operated 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...
  • 2021 Latest Design Wafer Lug Check Valve - Stainless Steel Double Disc Swing Check Valve – Dongsheng

    2021 Latest Design Wafer Lug Check Valve - Stainless Steel Double Disc Swing Check Valve – Dongsheng

    Product Video Product Description Our Wafer stainless steel dual plate check valve is disc-shaped and rotates around the shaft of the valve seat passage. Because the inner passage of the valve is streamlined, the flow resistance is small, and it is suitable for large-diameter occasions with low flow velocity and infrequent flow changes. An economical, space-saving dual plate check valve with a spring and with Stainless Steel body, and Viton seal. Either vertically (only upwards) or horizonta...
  • 2021 Latest Design Wafer Lug Check Valve - Stainless Steel Single Disc Swing Check Valve – Dongsheng

    2021 Latest Design Wafer Lug 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...
  • Special Price for Wafer Disc Check Valve - Thin Single Disc Swing Check Valve – Dongsheng

    Special Price for Wafer Disc 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...
  • OEM China Weir Type Diaphragm Valve – Rising Stem Diaphragm Valve(Black) – Dongsheng

    OEM China 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 produ...
  • Good Wholesale Vendors Split Disc Check Valve - Flanged Ball Check Valve – Dongsheng

    Good Wholesale Vendors Split Disc 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 ...
  • Ordinary Discount Gear Operated Butterfly Valve - Wafer Type Butterfly Valve – Dongsheng

    Ordinary Discount Gear Operated Butterfly Valve - Wafer Type Butterfly Valve – Dongsheng

    Product Video Product Description Dimensions: Size : DN 50 to DN 600 Ends : ANSI150/PN10/PN16/JIS10K Specifications: Type of valve: Butterfly valve wafer type Working temperature: EPDM -10℃-+120℃ Face to Face: ISO5752 sequence Upper flange standard: ISO5211 Pressure test conform: API598 Medium: Fresh Water, Sea Water, Food Stuff, all kinds of oil etc. Materials : Body: GGG-50 ductile iron body allows installation in ANSI 150 and DIN PN 10/16 pipe flanges. Disc: Stainless steel 304 (CF8)....
  • Lowest Price for Spring Loaded Check Valve - Stainless Steel Double Disc Swing Check Valve – Dongsheng

    Lowest Price for Spring Loaded Check Valve - Stainless Steel Double Disc Swing Check Valve – Dongsheng

    Product Video Product Description Our Wafer stainless steel dual plate check valve is disc-shaped and rotates around the shaft of the valve seat passage. Because the inner passage of the valve is streamlined, the flow resistance is small, and it is suitable for large-diameter occasions with low flow velocity and infrequent flow changes. An economical, space-saving dual plate check valve with a spring and with Stainless Steel body, and Viton seal. Either vertically (only upwards) or horizonta...