SVR Global is a trust-worthy Concentric Butterfly Valve Manufacturer in USA with a large selection of Concentric Butterfly Valves. Our products have been well received for several years by various prestigious organizations.
What is a Concentric Butterfly Valve?
A centric or concentric butterfly valve is the most common type of butterfly valve arrangement and it is also known as Zero-Offset Butterfly Valve.
The stem is in the center of the disc and the disc is in the center of the valve body. The disc stays in the passage, but it provides very little resistance to the flow due to its thinness. When the seat opens or shuts, some portions of the disc are always in touch with or scraping the seat. The seat is subjected to friction every time the valve is utilized as a result of this arrangement.
Concentric butterfly valves are also known as resilient seated butterfly valve as 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-
- Consists of fewer components
- Easier to operate & maintain.
- Lightweight
- Fewer installation costs
Industries that use Concentric Butterfly Valve:
- Aeration System.
- Water treatment.
- Water Distribution.
- Water Transmission.
- Fire Protection.
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:
- Design is small & requires little room.
- Piping system easily supports the weight.
- Costs less because there is less raw material.
- Quick operation; little time spent opening or closing.
- Low operation torque allows for simple operation.
- Larger sizes are available.
- Energy efficiency has improved.
- A high-pressure rebound follows the low-pressure decrease.
- Durable
- Maintenance is easier, inexpensive and less required.
- Less assistance is required.
- Quite accurate.
- Can be installed/removed easily without disrupting the piping system
- Numerous actuation methods are available.
- Various seat and disc materials are available.
- Low-pressure drop.
- Good for slurries
- Large seating area
- No gas pockets
- Good for on/off and throttling
- Eay to install and operate
- Lightweight
Disadvantages of Butterfly valve:
- Due to low-pressure drop, throttling is limited.
- Even in an open state, the valve disc is constantly under pressure and might interrupt the flow.
- Cavitation and choked flow are possible.
- Poor sealing.
- High differential pressure is not recommended.
- Regardless of the setting, a pressure switch occurs over the valve.
- Disc provides little resistance to flow when fully open.
- 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
- Constant Load Applications
- Space-Restrictive Applications
- Throttling Valves
- Cooling water, air, gases, fire protection, etc.
- Slurry and suspended solids
- Vacuum service
- High-pressure and high-temperature water and steam services
- 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” – 48”
Class: 150 to 300; PN 6 – PN 25
Ends: Wafer, flanged, lug
Operations: Lever operated, Handwheel, gear operated, pneumatic actuated and electric actuated.
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