Concentric Butterfly Valve
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As a distinguished concentric butterfly valve manufacturer in China, quality is our top priority.
Design Standards: API 609 Cat A, EN 593, BS 5155
Size Range: 2 - 72 Inch
Pressure Range: up to PN20
End Connections: Wafer, Lug, Flanged (FF, RF, RTJ)
Material Types: Iron, Carbon Steel, Stainless Steel, Duplex Steel, Al-BRZ, Alloy, Ti
Seat Type: NBR, Viton, EPDM, PTFE
Disc Fixing Type: With pin and without pin
Top Mounting: ISO 5211 top mounting is available
Operation Types: Lever, Gear, Pneumatic Actuator
Bosseal Valve advantages: 0 Leakage, low Torque, Long working life
Design Standards: API 609 Cat A, EN 593, BS 5155
Size Range: 2 - 72 Inch
Pressure Range: up to PN20
End Connections: Wafer, Lug, Flanged (FF, RF, RTJ)
Material Types: Iron, Carbon Steel, Stainless Steel, Duplex Steel, Al-BRZ, Alloy, Ti
Seat Type: NBR, Viton, EPDM, PTFE
Disc Fixing Type: With pin and without pin
Top Mounting: ISO 5211 top mounting is available
Operation Types: Lever, Gear, Pneumatic Actuator
Bosseal Valve advantages: 0 Leakage, low Torque, Long working life
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Most QUALITY Concentric Butterfly ValveS FOR YOU
A concentric butterfly valve (resilient butterfly valve) is with a one-piece body and concentric disc & seat.
If you need any support with our Ball Valves, pls contact us!
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If you need any support with our Ball Valves, pls contact us!
CONCENTRIC BUTTERFLY VALVE
A concentric butterfly valve is an extremely cost-saving choice for low-pressure applications and is widely used for many industries like water treatment, marine, fire fighting, HVAC and Agricultural.
Main Features:
Compact Design
With shorter face-to-face and light designs, it’s very space-saving for piping design compared to other valve types.
Low Emission and anti-blowout stem design
Packing made by pre-compressed flexible graphite rings, the roughness of the stuffing box and the stem is well controlled to ensure lower torque and better sealing. The live-loaded gland flange is available to adjust the compression of the packing seal. The space ring and gland design can prevent the stem to be a blow-out.
ISO 5211 Top Mounting
Lockable Hand Lever
Different End Connections Available:
Dead End Service
When the valves need to be installed at end of the pipe and one side has no connection with the ant pipe/flange, the valve needs a special design like threaded holes and bi-direction sealing.
Flow parameters
A concentric butterfly valve is an extremely cost-saving choice for low-pressure applications and is widely used for many industries like water treatment, marine, fire fighting, HVAC and Agricultural.
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Main Features:
Compact Design
With shorter face-to-face and light designs, it’s very space-saving for piping design compared to other valve types.

Low Emission and anti-blowout stem design
Packing made by pre-compressed flexible graphite rings, the roughness of the stuffing box and the stem is well controlled to ensure lower torque and better sealing. The live-loaded gland flange is available to adjust the compression of the packing seal. The space ring and gland design can prevent the stem to be a blow-out.

ISO 5211 Top Mounting
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Lockable Hand Lever
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Different End Connections Available:
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Dead End Service
When the valves need to be installed at end of the pipe and one side has no connection with the ant pipe/flange, the valve needs a special design like threaded holes and bi-direction sealing.

Flow parameters
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