Concentric Butterfly Valve

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
 

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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.
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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


 
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