Ball Valves

We are a professional ball valve manufacturer in P. R. China.
Design Standards: API 6D, API 608, ISO 17292, BS 5351
Size Range: 1/4 - 60 Inches.
Pressure Range: Class 150 - 2500 LB, 10000 PSI (API 6A Products)
Material Range: Cast Steel, Forged Steel, Carbon Steel, Stainless Steel, Alloy Steel, Bronze, Ti.
End Connections: Flanged (FF, RF, RTJ), Socket Weld (SW), Threaded (NPT, BSP), Butt Weld (BW), HUB
Body Structures: End Entry, Top Entry (easy for online maintenance)
Body Types: 2pc split body, 3pcs split body
Body & Bonnet Connection: Bolted Bonnet, Full Welded Bonnet (for Hazardous service need longer working life with less leakage point)

We are one of the best professional trunnion-mounted ball valve manufacturers in China.
Design Standards: API 6D, API 608, ISO 17292, BS 5351
Size Range: 1/4 - 60 Inch
Pressure Range: Class 150-2500 LB, 10000 PSI (API 6A Products)
Material Range: Cast Steel, Forged Steel, Carbon Steel, Stainless Steel, Alloy Steel, Bronze, Ti
End Connections: Flanged (FF, RF, RTJ), Socket Weld (SW), Threaded (NPT, BSP), Butt Weld (BW), HUB
Body Structures: End Entry, Top Entry (easy for on-line maintenance)
Body Types: 2pc split body, 3pcs split body
Body&Bonnet Connection: Bolted Bonnet, Full Welded Bonnet (for Hazardous service need longer working life with less leakage point)
We are a professional manufacturer of floating ball valves in China.
Design Standards: API 6D, API 608, ISO 17292, BS 5351
Size Range: 1/4 - 10 Inch
Pressure Range: Class 150-2500 LB
Material Range: Cast Steel, Forged Steel, Carbon Steel, Stainless Steel, Alloy Steel, Bronze, Ti
End Connections: Flanged (FF, RF, RTJ), Socket Weld (SW), Threaded (NPT, BSP), Butt Weld (BW), HUB
Body Types: 1 pc body, 2pc split body, 3pcs split body
Body&Bonnet Connection: Bolted Bonnet, Threaded Bonnet
 
Specializing in modular DBB ball valve production, we have become a well-known Chinese manufacturer.
Design Standards: API 6D
Size Range: 2 - 24 Inch
Pressure Range: Class 150-2500 LB, 10000 PSI (API 6A Products)
Material Range: Forged Steel, Carbon Steel, Stainless Steel, Alloy Steel
End Connections: Flanged (FF, RF, RTJ)-ASME B16.5 or B16.47, Butt Weld (BW)-ASME B16.25, HUB
Face to Face: Manufacturer Standard
 

Why Choose Our Ball Valves

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Tight Shut Off & Low Emission

Several unique design features, excellent sealing materials and a strong body make the valve an excellent choice for shut-off with Zero Leakage under pipeline pressure.

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Super Fire Safe Design

Excellent material of graphite, O-ring, gasket and advanced sealing structure are applied to make the valve with reliable sealing even after the fire.

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Anti Blow-out Stem&Anti-Static

An Independent stem and integral shoulder can prevent the stem from blow-out and ensure the safety of the operator. The anti-static device on the ball&stem makes the valve free from sparking.

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Fully Customizable Design

Trunnion/Floating, DBB/DIB, Soft/Metal and different materials are available. The valve design is fully customizable to meet customers' project specifications.

Trunnion Mounted Ball Valve

Design Standards: API 6D, API 608, ISO 17292, BS 5351
Size Range: 1/4 - 60 Inch
Pressure Range: Class 150-2500 LB, 10000 PSI (API 6A Products)
Material Range: Cast Steel, Forged Steel, Carbon Steel, Stainless Steel, Alloy Steel, Bronze, Ti
End Connections: Flanged (FF, RF, RTJ), Socket Weld (SW), Threaded (NPT, BSP), Butt Weld (BW), HUB
Body Structures: End Entry, Top Entry (easy for online maintenance)
Body Types: 2pc split body, 3pcs split body
Body&Bonnet Connection: Bolted Bonnet, Full Welded Bonnet (for Hazardous service need longer working life with less leakage point)

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Trunnion Mounted Ball Valve

Floating Ball Valve

Floating Ball Valve

Design Standards: API 6D, API 608, ISO 17292, BS 5351
Size Range: 1/4 - 10 Inch
Pressure Range: Class 150-2500 LB
Material Range: Cast Steel, Forged Steel, Carbon Steel, Stainless Steel, Alloy Steel, Bronze, Ti
End Connections: Flanged (FF, RF, RTJ), Socket Weld (SW), Threaded (NPT, BSP), Butt Weld (BW), HUB
Body Types: 1 pc body, 2pc split body, 3pcs split body
Body&Bonnet Connection: Bolted Bonnet, Threaded Bonnet

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Modular Double Block and Bleed Ball Valve (Double Ball)

Design Standards: API 6D
Size Range: 2 - 24 Inch
Pressure Range: Class 150-2500 LB, 10000 PSI (API 6A Products)
Material Range: Forged Steel, Carbon Steel, Stainless Steel, Alloy Steel
End Connections:
Flanged (FF, RF, RTJ): ASME B16.5 or ASME B16.47
Butt Weld (BW): ASME B16.25
HUB
Face to Face: Manufacturer Standard

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Modular Double Block and Bleed Ball Valve (Double Ball)

Seat Structures

Seat Structures
Seat Structures
DBB-Double Block and Bleed: Single valve with two seating surfaces that, in the closed position, provides a seal against pressure from both ends of the valve with a means of venting/bleeding the cavity between the seating surfaces. The single piston effect is the standard design for trunnion-mounted ball valves. Pressure from both the upstream and downstream sides pushes the seat rings against the ball. If the force created by the body cavity pressure is greater than the preloaded spring force plus the force created by the pressure from the upstream or downstream side, the seats are pushed away from the ball. Thus, any overpressure in the body cavity is released automatically in the valves' fully open or fully closed position.

DIB-Double Insolation and bleed: Single valve with two seating surfaces, each of which, in the closed position, provides a seal against pressure from a single source, with a means of venting/bleeding the cavity between the seating surfaces. Double piston effect seats are pressure energized in both directions. So the seat rings are always pushed against the ball by the pressure from upstream/downstream or from the cavity. If the upstream seat fails, the downstream seat can still ensure a tight seal.
Fire Safe: Internal leakage prevention

Fire Safe: Internal leakage prevention

Fire Safe Standards: API 607, API 6FA, ISO 10497
Fire-safe design for soft seat ball valves.
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Fire Safe: External leakage prevention

Fire Safe: External leakage prevention

Before Fire & After Fire
Metal-to-metal contact
Seat fire-safe packing
With seat springs and O-rings
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Anti-blowout Stem& Anti-static Device

Anti-blowout Stem& Anti-static Device

The stem is made separately from the ball. The lower end of the stem is designed with an integral shoulder to be blowout-proof.

The electrical continuity of the ball, stem, and body is ensured by the device(spring and ball) to avoid dangerous sparking during the operation.
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Emergency Sealant Injection System

Emergency Sealant Injection System

In an emergency case, when the sealing materials(soft seat or the stem o-ring) fail to work, the seat and stem leakage can be prevented by injecting sealant into these injection fittings, it will be installed on the stem and seat according to the ball valve sizes.
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Related Tables and Parameter Information

Mechanical Properties of Soft Seat Materials

For more information, please check the contents below.

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Pressure/Temperature Rating of Soft Seat Materials

For more information, please check the contents below.

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MOST QUALITY Ball Valves FOR YOU

A ball valve is mainly used in the pipeline for shut-off and control applications. It is one kind of quarter-turn valve, it's open when the ball's hole is in line with the flow inlet and closed when it is 90 degrees rotated by the valve handle, blocking the flow. And can usually be lockable at a different position to control the fluid. It's durable, easy operation/repair and has good sealing performance even after a long disuse. All these advantages make it with extensive industrial use like oil&gas, chemicals, pipelines, water treatment, and mining. The ball valve is versatile as there are many different choices of ball valve types available to select according to the working condition.
If you need any support with our Ball Valves, pls contact us!

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Related Products

Bore Types:
Full Bore: The hole of the ball is the same size as the pipe
Reduced Bore: The hole of the ball is with smaller size than the pipe
 
Port Types: T port, V port, 2-way, 3-way T type and 3-way L type
 
Seat types: Soft Seat, Metal Seat
 
Sealing Types: O-ring, Lip Seal
Lipseal is the spring-energized seal including Elgiloy or Inconel spring and
PTFE jacket. It’s effective in a wide range of applications, such as high
resistance to corrosive chemical media, high sour gas, low temperature or cryogenic service.
 
Ball Vavles Sealing Types   End Connections: Flanged (FF, RF, RTJ), Socket Weld (SW), Threaded (NPT, BSP), Butt Weld (BW), HUB
Size Range: 1/4”~60”
Pressure Range: 150LB~2500LB, 10000PSI (API 6A Products)
Material Range: Cast Steel, Forged Steel, Carbon Steel, Stainless Steel, Alloy Steel, Bronze, Ti
 
Mechanical Properties of Soft Seat Materials Pressure/Temperature Rating of Soft Seat Materials



 
About Us
Founded in 2013, Bosseal Valve is a professional valve manufacturing company in Suzhou, China. We mainly supply Industrial Ball Valves, Gate Valves, Globe Valves, Check Valves, Butterfly Valves, Plug VaIves, and Strainers designed and manufactured according to API, ASME, ISO, DIN, BS, EN standards.
 
Our Contacts
Building 2, NO.59, Songshan Road, SND, Suzhou, China