Swing Check Valve
A swing check valve ensures one-way flow by using a disc that swings on a hinge to allow fluid in and automatically closes to prevent backflow. It protects pumps and motors from reversal and prevents leakage. The valve features an internal swing arm structure, with a spherical joint connecting the arm and disc for slight positional adjustments. Available in various sizes and flange configurations, swing check valves are essential for preventing backflow and ensuring controlled fluid movement in systems.
Swing Check Valve Product List
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ASTM A182 F304 Swing Check Valve, BS 1868, 6 Inch, CL900, BW
This BS 1868 swing check valve features a 150 mm (6 inch / DN150) stainless steel body made from ASTM A182 F304. It is rated for Class 900 LB (PN150) high-pressure service and has butt welding (BW) end connections. Manufactured by a specialized ASTM A182 F304 check valve factory, it prevents reverse...
Swing Check Valve
ASTM A217 WC1 Swing Check Valve, BS 1868, 3 Inch, 600 LB, RF
This plant produces ASTM A217 WC1 swing check valves in the 80 mm size. The valves comply with BS 1868. The body is alloy steel. The nominal size is DN80, or 3 inches. The pressure rating is Class 600 LB and PN100. The ends are RF flanged. These valves allow flow in one direction and prevent backflow...
Swing Check Valve
ASTM A351 CF8 Swing Check Valves, 6 Inch, 600 LB, RF Flanged
This ASTM A351 CF8 swing check valves plant produces 150 mm swing check valves built to BS 1868 standards. The valve body is cast stainless steel. It measures 6 inches (DN150) in nominal diameter. The pressure rating is Class 600 LB (PN20). The ends are RF (raised face) flanged for secure pipeline connection....
Swing Check Valve
20 Inch Swing Check Valve, BS 1868, ASTM A216 WCB, CL150, RF
The 20-inch Swing Check Valve from the factory is meticulously designed to meet BS 1868 standards. It features a robust carbon steel body made from ASTM A216 WCB material, ensuring durability and reliability. With a nominal diameter of DN500 and a pressure rating of PN20 (Class 150 LB), this valve is...
Swing Check Valve
API 6D Swing Check Valves, A216 WCB, 8 IN, CL300 LB, BB, RF
The China API 6D Swing Check Valves Factory produces high-performance swing type check valves designed to meet stringent industry standards. These valves are crafted from ASTM A216 WCB carbon steel, ensuring robustness and durability. With an 8-inch diameter and a pressure rating of 300 LB, they are...
Swing Check Valve
BS 1868 Swing Check Valves, Carbon Steel, WCB, 4 Inch, CL600
The China BS 1868 Swing Check Valves Plant offers high-quality swing check valves designed for reliable performance. These valves are constructed from ASTM A216 WCB carbon steel, ensuring durability and strength. With a 4-inch (DN100) size and a pressure rating of 600 LB (PN100), they are suitable for...
Swing Check Valve
6 Inch Swing Check Valve, API 6D, ASTM A216 WCB, 150 LB, BB
The 6 Inch Swing Check Valve Factory produces valves meticulously designed in accordance with API 6D standards. These valves feature a robust carbon steel body made from ASTM A216 WCB material, ensuring durability and reliability. With a DN150 nominal diameter, they are rated at PN20 and Class 150 LB,...
Swing Check Valve
ASTM A216 WCB Check Valves, API 6D, NACE, 12 Inch, CL600, RF
The ASTM A216 WCB Check Valves Plant in China offers high-quality Swing Type Check Valves designed to meet stringent industry standards. These valves feature a carbon steel body, ensuring durability and reliability. They are available in a 12-inch size with a DN300 nominal diameter and rated at Class...
Swing Check Valve
10 Inch Swing Check Valve, API 6D, ASTM A216 WCB, 150 LB, BB
The China 10 Inch Swing Check Valve Factory produces high-quality Swing Check Valves that meet API 6D standards. These valves are constructed from Carbon Steel (ASTM A216 WCB) and feature a DN250 size with a PN20 pressure rating, equivalent to Class 150 LB. They come with bolted covers and RF (Raised...
Swing Check Valve
Bolted Bonnet Swing Check Valve, API 6D, ASTM A216 WCB, 2 IN
The Bolted Bonnet Swing Check Valve Plant offers a robust Swing Check Valve designed to meet stringent industry standards. This valve is constructed from high-quality Carbon Steel (ASTM A216 WCB) and adheres to API 6D specifications, ensuring reliability and durability. It features a 2-inch (DN50) size...
Swing Check Valve
24 Inch Swing Check Valve, API 6D, ASTM A216 WCB, CL900, RTJ
This 24-inch (DN600) swing check valve from a leading China plant is engineered to API 6D standards and features a robust ASTM A216 WCB carbon steel body for high strength and corrosion resistance. Designed for high-pressure systems, it is rated for Class 900 LB (PN150) and equipped with RTJ flanged...
Swing Check Valve
Carbon Steel Swing Check Valves, API 6D, A216 WCB, 12 Inch
This 12-inch (DN300) carbon steel swing check valve from a specialized plant is built to API 6D standards and features a durable ASTM A216 WCB body for reliable performance in demanding applications. Rated for Class 300 LB (PN50), it meets NACE requirements for sour service, making it suitable for use...
Swing Check Valve
8 Inch Swing Check Valve, API 6D, ASTM A216 WCB, CL1500, RTJ
The 8-inch Swing Check Valve from China is a high-pressure valve designed to meet API 6D standards. It features a carbon steel ASTM A216 WCB body, ensuring strength and durability. The valve has a Class 1500 LB pressure rating and a DN200, PN250 designation, making it suitable for high-pressure applications....
Swing Check Valve
ASTM A351 CF8M Check Valve, API 6D, 10 Inch, 900 LB, BB, RTJ
The China ASTM A351 CF8M Check Valve Plant offers a high-quality Swing Check Valve designed to meet API 6D standards. This valve features a cast stainless steel body, ensuring durability and corrosion resistance. It has a 10-inch diameter and a Class 900 LB pressure rating, making it suitable for demanding...
Swing Check Valve
API 6D Swing Check Valve, ASTM A216 WCB, 4 IN, Bolted Bonnet
The API 6D Swing Check Valve from a reputable manufacturer is designed for reliable one-way flow control. Constructed with an ASTM A216 WCB cast carbon steel body, it offers robust durability and strength. The valve features a 4-inch (DN100) size and a pressure rating of Class 300 LB, making it suitable...
Swing Check Valve
Class 1500 LB Swing Check Valve, API 6D, A216 WCB, 12 IN, RTJ
The Class 1500 LB Swing Check Valve Supplier offers high-performance swing check valves meticulously designed in accordance with API 6D standards. These valves feature a durable Carbon Steel ASTM A216 WCB body, ensuring robustness and reliability in demanding industrial applications. With a 12-inch...
Swing Check Valve
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- A swing check valve is equipped with a single disc. Under the force of the flowing medium, the disc automatically opens or closes around a fixed hinge pin. When the medium stops flowing, the disc closes under its own weight. The entire operation process is automatic and requires no manual intervention.
- KOSEN swing check valves feature a simple structure, fewer components, convenient maintenance and repair, and a low failure rate. A full-open disc design is adopted to provide a larger flow area after the disc opens, resulting in low fluid resistance and a high flow coefficient.
- A counterweight or damping structure can also be applied to reduce water hammer impact during disc opening and closing.
- Check valves are installed in pipelines to prevent reverse flow of the medium and to ensure one-way flow within the piping system only.
» Spiral wound gaskets are standard for Class 150 to Class 600 valves, while ring joint gaskets are standard for Class 900 and above valves, or available as an option for Class 600 valves upon customer request.
» The hinge and hinge pin are designed and mounted to allow full movement of the disc.
» A renewable seal-welded seat with Stellite 6 hard facing is provided as standard, while a screwed-in seat is available as an option.
» The standard swing disc type is suitable for horizontal installation in liquid service applications, or for vertical installation where the liquid flows from bottom to top.
» Standard bosses are provided for drain tapping at location “G” on the lower part of the body centerline. Additional bosses can be supplied according to customer requirements.
