With a wide variety of Concentric Butterfly Valves, SVR Global is a reputable Concentric Butterfly Valve Manufacturer in USA. Our products have been well received for many years by various prestigious organizations.
What is a Concentric Butterfly Valve?
The most typical kind of butterfly valve is a centric or concentric valve, commonly referred to as a zero-offset butterfly valve.
The disc is in the center of the valve body, and the stem is in the middle of the disc. The disc remains in the passage, but due to its thinness, it offers very little flow resistance. Some disc sections are always in contact or rubbing against the seat as it opens or closes. This configuration results in friction being applied to the seat each time the valve is used.
Concentric butterfly valves are also referred to as resilient seated butterfly valves since it depends on the flexibility of the seat rubber when the flow is closed, for the reliability of the seal.
Advantages of Concentric Butterfly valves
SVR Global is a trust-worthy Concentric Butterfly Valve Manufacturer in USA that has the following advantages-
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Consists of fewer components
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Easier to operate & maintain.
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Fewer installation costs
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Lightweight
Industries that use Concentric Butterfly Valve:
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Aeration System.
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Fire Protection.
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Water treatment.
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Water Distribution.
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Water Transmission.
What is a Butterfly Valve?
A butterfly valve is a part of the quarter-turn rotary motion valve family (bi-directional) that is used to prevent, control, or start flow.
Quarter valves include the type of valves in which 1/4 turn of the disk is enough to fully open or fully close the flow. Quarter turn valves are fast to operate as they only require 90 degrees of rotation in order to move from the fully open to the fully closed position. This is also why they are also called fast-acting valves.
The butterfly valve gets its name from the shape of the plug and how it moves.
The plug is disc-shaped with a rod passing through it which makes it look like a butterfly. When the rod is turned, it rotates the disc by a quarter such that the disc falls perpendicular to the flow and stops it. And to restore the flow, the rod rotates the disc back to the original position, i.e. away from the flow. The valve can also be opened in stages to control the flow.
Advantages of Butterfly Valve:
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Design is small & requires little room.
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Piping system easily supports the weight.
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Costs less because there is less raw material.
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Quick operation; little time spent opening or closing.
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Low operation torque allows for simple operation.
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Larger sizes are available.
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Energy efficiency has improved.
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A high-pressure rebound follows the low-pressure decrease.
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Durable
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Maintenance is easier, inexpensive and less required.
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Less assistance is required.
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Quite accurate.
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Can be installed/removed easily without disrupting the piping system
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Numerous actuation methods are available.
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Various seat and disc materials are available.
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Low-pressure drop.
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Good for slurries
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Large seating area
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No gas pockets
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Good for on/off and throttling
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Easy to install and operate
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Lightweight
Disadvantages of Butterfly valve:
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Due to low-pressure drop, throttling is limited.
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Even in an open state, the valve disc is constantly under pressure and might interrupt the flow.
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Cavitation and choked flow are possible.
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Poor sealing.
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High differential pressure is not recommended.
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Regardless of the setting, a pressure switch occurs over the valve.
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Disc provides little resistance to flow when fully open.
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Flow turbulence affects disc movement, which is unguided.
Applications of Butterfly Valve:
SVR Global is a trust-worthy Butterfly Valve Manufacturer in USA offering Butterfly Valves that are used in
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Constant Load Applications
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Space-Restrictive Applications
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Throttling Valves
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Cooling water, air, gases, fire protection, etc.
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Slurry and suspended solids
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Vacuum service
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High-pressure and high-temperature water and steam services
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Compressed Air or Gas Applications
- Wastewater management system
Description of Concentric Butterfly valves
SVR Global is a trust-worthy Concentric Butterfly Valve Manufacturer in USA providing an extensive range of valves, in numerous sizes, styles, and designs.
Body Material: Cast Carbon steel (WCC, WCB, WC6), Stainless Steel [SS316, SS304, SS316L, SS904L, CF8, CF8M, F31L, F91], Duplex Steel and Super Duplex Steel (F51, F53, F55), Cast iron, Ductile Iron.
Size: 2” to 48”
Class: 150 to 300; PN 6 to PN 25
Ends: Wafer, Flanged, Lug
Operations: Lever operated, Gear operated, Pneumatic actuated and Electric actuated.
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