Our company is among the top-tier check valve manufacturers in China.
Valve Types: Swing Check Valve, API 6D Full Open Swing Check Valve, Lifting Check Valve, Dual Plate Check Valve, Axial Flow Check Valve, Titling Check Valve, Single Plate Wafer Check Valve
Design Standards: BS1868, API 594, API 602, ASME B16.34, API 6D
Size Range: 1/2 - 64 Inch
Pressure Range: Class 150-2500 LB
End Connections: Flanged (FF, RF, RTJ), Socket Weld (SW), Threaded (NPT, BSP), Butt Weld (BW), Wafer, Lug
Material Types: Carbon Steel, Stainless Steel, Duplex Steel, Al-BRZ, Alloy
Disc Types: single plate, dual plate, tilting disc
Bonnet Types: Bolted Bonnet, Pressure Bonnet, Welded Bonnet
Valve Types: Swing Check Valve, API 6D Full Open Swing Check Valve, Lifting Check Valve, Dual Plate Check Valve, Axial Flow Check Valve, Titling Check Valve, Single Plate Wafer Check Valve
Design Standards: BS1868, API 594, API 602, ASME B16.34, API 6D
Size Range: 1/2 - 64 Inch
Pressure Range: Class 150-2500 LB
End Connections: Flanged (FF, RF, RTJ), Socket Weld (SW), Threaded (NPT, BSP), Butt Weld (BW), Wafer, Lug
Material Types: Carbon Steel, Stainless Steel, Duplex Steel, Al-BRZ, Alloy
Disc Types: single plate, dual plate, tilting disc
Bonnet Types: Bolted Bonnet, Pressure Bonnet, Welded Bonnet
Swing Check Valve (130)
As one of the leading swing check valve manufacturers in China, we take pride in our products.
Valve Types: Swing Check Valve, API 6D Full Open Swing Check Valve
Design Standards: BS 1868, API 594, ASME B16.34, API 6D
Size Range: 1/2 - 64 Inch
Pressure Range: Class 150-2500 LB
End Connections: Flanged (FF, RF, RTJ), Socket Weld (SW), Threaded (NPT, BSP), Butt Weld (BW)
Material Types: Carbon Steel, Stainless Steel, Duplex Steel, Al-BRZ, Alloy
Bonnet Types: Bolted Bonnet, Pressure Bonnet, Welded Bonnet
Valve Types: Swing Check Valve, API 6D Full Open Swing Check Valve
Design Standards: BS 1868, API 594, ASME B16.34, API 6D
Size Range: 1/2 - 64 Inch
Pressure Range: Class 150-2500 LB
End Connections: Flanged (FF, RF, RTJ), Socket Weld (SW), Threaded (NPT, BSP), Butt Weld (BW)
Material Types: Carbon Steel, Stainless Steel, Duplex Steel, Al-BRZ, Alloy
Bonnet Types: Bolted Bonnet, Pressure Bonnet, Welded Bonnet
Dual Plate Check Valve (142)
With years of experience as a dual plate check valve manufacturer in China, we have a strong reputation in the industry.
Valve Types: Dual Plate Check Valve, Single Plate Wafer Check Valve, Thin Type WAFER Check Valve, Lifting Wafer Check Valve
Seat Type: Soft Seat, Metal Seat
Design Standards: API 594, API 6D
Size Range: 2-64 Inch
Pressure Range: Class 150-2500 LB
End Connections: Wafer, Lug, Flanged (FF, RF, RTJ), Butt Weld (BW), HUB
Material Types: Carbon Steel, Stainless Steel, Duplex Steel, Al-BRZ, Alloy, Ti
Valve Types: Dual Plate Check Valve, Single Plate Wafer Check Valve, Thin Type WAFER Check Valve, Lifting Wafer Check Valve
Seat Type: Soft Seat, Metal Seat
Design Standards: API 594, API 6D
Size Range: 2-64 Inch
Pressure Range: Class 150-2500 LB
End Connections: Wafer, Lug, Flanged (FF, RF, RTJ), Butt Weld (BW), HUB
Material Types: Carbon Steel, Stainless Steel, Duplex Steel, Al-BRZ, Alloy, Ti
We have established ourselves as one of the most reputable axial flow check valve manufacturers in China.
Design Standards: API 594, API 6D
Size Range: 2 - 48 Inch
Pressure Range: Class 150-2500 LB
Material Types: Carbon Steel, Stainless Steel, Duplex Steel, Al-BRZ, Alloy, Ti
Design Standards: API 594, API 6D
Size Range: 2 - 48 Inch
Pressure Range: Class 150-2500 LB
Material Types: Carbon Steel, Stainless Steel, Duplex Steel, Al-BRZ, Alloy, Ti
Swing Check Valve
Valve Types: Swing Check Valve, API 6D Full Open Swing Check Valve
Design Standards: BS 1868, API 594, ASME B16.34, API 6D
Size Range: 1/2 - 64 Inch
Pressure Range: Class 150-2500 LB
End Connections: Flanged (FF, RF, RTJ), Socket Weld (SW), Threaded (NPT, BSP), Butt Weld (BW)
Material Types: Carbon Steel, Stainless Steel, Duplex Steel, Al-BRZ, Alloy
Bonnet Types: Bolted Bonnet, Pressure Bonnet, Welded Bonnet
Request a quoteDesign Standards: BS 1868, API 594, ASME B16.34, API 6D
Size Range: 1/2 - 64 Inch
Pressure Range: Class 150-2500 LB
End Connections: Flanged (FF, RF, RTJ), Socket Weld (SW), Threaded (NPT, BSP), Butt Weld (BW)
Material Types: Carbon Steel, Stainless Steel, Duplex Steel, Al-BRZ, Alloy
Bonnet Types: Bolted Bonnet, Pressure Bonnet, Welded Bonnet
Dual Plate Check Valve
Valve Types: Dual Plate Check Valve, Single Plate Wafer Check Valve, Thin Type WAFER Check Valve, Lifting Wafer Check Valve
Seat Type: Soft Seat, Metal Seat
Design Standards: API 594, API 6D
Size Range: 2-64 Inch
Pressure Range: Class 150-2500 LB
End Connections: Wafer, Lug, Flanged (FF, RF, RTJ), Butt Weld (BW), HUB
Material Types: Carbon Steel, Stainless Steel, Duplex Steel, Al-BRZ, Alloy, Ti
Request a quoteSeat Type: Soft Seat, Metal Seat
Design Standards: API 594, API 6D
Size Range: 2-64 Inch
Pressure Range: Class 150-2500 LB
End Connections: Wafer, Lug, Flanged (FF, RF, RTJ), Butt Weld (BW), HUB
Material Types: Carbon Steel, Stainless Steel, Duplex Steel, Al-BRZ, Alloy, Ti
Axial Flow Check Valve
Design Standards: API 594, API 6D
Size Range: 2 - 48 Inch
Pressure Range: Class 150-2500 LB
Material Types: Carbon Steel, Stainless Steel, Duplex Steel, Al-BRZ, Alloy, Ti
Request a quoteSize Range: 2 - 48 Inch
Pressure Range: Class 150-2500 LB
Material Types: Carbon Steel, Stainless Steel, Duplex Steel, Al-BRZ, Alloy, Ti
Application


Check valves are widely used for different applications, like downstream of the pump or HVAC system to protect the equipment from backflow.
Most QUALITY Check Valves FOR YOU
The check valve is basically a one-way valve and is also called a non-return valve, it is generally used in pipelines to prevent backflow.
The flow can run freely in one way and in another way the check valve will be closed to protect the piping system from the water hammer. But at the same time, it will also cause pressure loss so in piping design the risk of the water hammer and pressure loss shall be evaluated to select the right valve type.
If you need any support about our Check Valves, pls contact us!
Request a quoteThe flow can run freely in one way and in another way the check valve will be closed to protect the piping system from the water hammer. But at the same time, it will also cause pressure loss so in piping design the risk of the water hammer and pressure loss shall be evaluated to select the right valve type.
If you need any support about our Check Valves, pls contact us!
About Us
Founded in 2013, Bosseal is a professional industrial valve manufacturer based in Suzhou, China. We specialize in the design and production of Ball Valves, Gate Valves, Globe Valves, Check Valves, Butterfly Valves, Plug Valves, and Piping Strainers. All our products are manufactured in strict compliance with international standards, including API, ASME, ISO, DIN, BS, and EN. With a strong focus on quality control and engineering capability, we are committed to providing reliable and high-performance valve solutions for global industrial applications.
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Building 2, NO.59, Songshan Road, SND, Suzhou, China


















