SVR Global is a trust-worthy Double Offset Butterfly Valve Manufacturer in USA with a large selection of Double Offset Butterfly Valves. Our products have been well received for several years by various prestigious organizations.
What is a Double Offset Butterfly Valve?
The double offset butterfly valve is also known as the high-performance butterfly valve or double eccentric butterfly valve.
The shaft is offset both from its body center line as well as the pipe’s center line.
This valve is suitable for thicker media with high pressure due to its design which prevents excessive contact between the disc and the seat. The valve’s balance is controlled by the stem, which is placed behind the circular disc. It allows the disc to self-adjust to the center, ensuring a solid fit. Even when fully opened, the valve does not touch the soft seat, ensuring a longer service life.
Advantages of Double Offset Butterfly Valve:
- Compact
- Open and shut very quickly
- Precise
- Reliable
- Need little or no maintenance
Industries that use Double Offset Butterfly Valve
- Chemical Industry
- Mining Industry
- Petroleum Industry
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
- Easy 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 Double Offset Butterfly Valve:
SVR Global is a trust-worthy Double Offset Butterfly Valve Manufacturer in USA that has the following features-
Material: Ductile Iron, Cast Iron, Duplex Steel.
Other Materials: 316L, F11, F22, F51, LF2, F304, F304L, F316, F316L.
Class: 150 - 300; PN 10 - PN 25
Ends: Flanged, Lug, Wafer
Size: 2’’ to 72’’
Operation: Lever Operated, Gear Operated, Pneumatic Actuated, Electric Actuated.
Visit us now -
https://svrglobal.net/products/double-offset-butterfly-valve/
Comments