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Valves - Butterfly Valve - Price list 2018 , Dealer in Chennai , Catalouge

Valves - Butterfly Valve - Price list 2018 , Dealer in Chennai , Catalouge

Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they cost less than other valve design, and are lighter weight so they need less support. The disc is positioned in the center of the pipe. A rod passes through the disc to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, so it induces a pressure drop, even when open.

A butterfly valve is from a family of valves called quarter-turn valves. In operation, the valve is fully open or closed when the disc is rotated a quarter turn. The "butterfly" is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the valve is fully open, the disc is rotated a quarter turn so that it allows an almost unrestricted passage of the fluid. The valve may also be opened incrementally to throttle flow.

There are different kinds of butterfly valves, each adapted for different pressures and different usage. The zero-offset butterfly valve, which uses the flexibility of rubber, has the lowest pressure rating. The high-performance double offset butterfly valve, used in slightly higher-pressure systems, is offset from the centre line of the disc seat and body seal (offset one), and the centre line of the bore (offset two). This creates a cam action during operation to lift the seat out of the seal resulting in less friction than is created in the zero offset design and decreases its tendency to wear. The valve best suited for high-pressure systems is the triple offset butterfly valve. In this valve the disc seat contact axis is offset, which acts to virtually eliminate sliding contact between disc and seat. In the case of triple offset valves the seat is made of metal so that it can be machined such as to achieve a bubble tight shut-off when in contact with the disc.

In the pharmaceutical, chemical, and food industries, a butterfly valve is used to interrupt product flow (solid, liquid, gas) within the process. The valves used in these industries are usually manufactured according cGMP guidelines (current good manufacturing practise). Butterfly valves generally replaced ball valves in many industries, particularly petroleum, due to lower cost and ease of installation, but pipelines containing butterfly valves cannot be 'pigged' for cleaning.

Wafer-style butterfly valves

The wafer style butterfly valve is designed to maintain a seal against bi-directional pressure differential to prevent any backflow in systems designed for unidirectional flow. It accomplishes this with a tightly fitting seal; i.e., gasket, o-ring, precision machined, and a flat valve face on the upstream and downstream sides of the valve.

 

We deal with Valves - Butterfly Valve and many other Industrial Piping Products such as , Pipes ,Pipe Fittings ,Flanges & Also  a huge Variety of Valves.

Online you can buy several products, such as from various top brands of india.  

For Price / Price list of <a data-cke-saved-href="https://www.tubesandvalves.com/pricelist.pdf" href="https://www.tubesandvalves.com/pricelist.pdf" onclick="window.open(this.href," '',="" 'resizable="yes,status=no,location=no,toolbar=no,menubar=no,fullscreen=no,scrollbars=yes,dependent=no');" return="" false;="" style="-webkit-font-smoothing:" antialiased;="" -webkit-tap-highlight-color:="" transparent;="" margin:="" 0px;="" padding:="" border:="" outline:="" color:="" rgb(221,="" 0,="" 23);="" text-decoration-line:="" none;="" cursor:="" pointer;="" box-sizing:="" border-box;="" font-family:="" adamina;="" font-size:="" 13px;=""> Valves - Butterfly Valve Price Price  & tons of other products simply click on the link.

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40NB or 1 1/2 CI-CAST IRON BUTTERFLY VALVE 'INTERVALVE' PN 10 HAND LEVER OPERATED is a premium produ..
1,657.00
Based on 10 reviews.
40NB or 1 1/2 CI-CAST IRON BUTTERFLY VALVE 'INTERVALVE' PN 16 HAND LEVER OPERATED is a premium produ..
0.00
Based on 10 reviews.
50NB or 2 CI-CAST IRON BUTTERFLY VALVE 'INTERVALVE' PN 10 HAND LEVER OPERATED is a premium product f..
18.35
Based on 7 reviews.
50NB or 2 CI-CAST IRON BUTTERFLY VALVE 'INTERVALVE' PN 16 HAND LEVER OPERATED is a premium product f..
0.00
Based on 10 reviews.
025mm or 1 CI-CAST IRON BUTTERFLY VALVE BAJPAI is a premium product from BAJPAI / CREST / METTLE(BAJ..
540.00
Based on 9 reviews.
050mm or 2 NB CI CAST IRON BODY CI DISC NITRILE LINING HAND LEVER OPERATED AUDCO BUTTERFLY VALVE PN ..
1,858.00
Based on 13 reviews.
050mm or 2 NB CI CAST IRON BODY SG IRON DISC NITRILE LINING HAND LEVER OPERATED AUDCO BUTTERFLY VALV..
0.00
Based on 5 reviews.
080mm or 3 NB SS 316 BODY SS316 DISC EPDM LINING HAND LEVER OPERATED AUDCO BUTTERFLY VALVE PN 16 is ..
0.00
Based on 6 reviews.
100mm or 4 CI BUTTERFLY VALVE WITH SG IRON DISH WITH EPDM SEAT WITH PN16 RATING HANDLE LEAVER WITH I..
0.00
Based on 6 reviews.
100NB CI-CAST IRON L&T Aquaseal Wafer Type Butterfly Valve PN10# With Flow Control Hand Leaver is a ..
3,035.00
Based on 10 reviews.
100NB CI-CAST IRON L&T Aquaseal Waffer Type Butterfly Valve PN10# With SS 316 Flow Control Hand Leav..
4,833.00
Based on 15 reviews.
100NB SG IRON L&T 150# Aquaseal Wafer Type Butterfly Valve PN20# With Flow Control Hand Leaver is a ..
0.00
Based on 12 reviews.
125NB CI-CAST IRON L&T Aquaseal Wafer Type Butterfly Valve PN10# With Flow Control Hand Leaver is a ..
3,493.00
Based on 6 reviews.
125NB CI-CAST IRON L&T Aquaseal Waffer Type Butterfly Valve PN10# With SS 316 Flow Control Hand Leav..
6,154.00
Based on 9 reviews.
125NB SG IRON L&T 150# Aquaseal Wafer Type Butterfly Valve PN20# With Flow Control Hand Leaver is a ..
0.00
Based on 14 reviews.
150NB CI-CAST IRON L&T Aquaseal Wafer Type Butterfly Valve PN10# With Flow Control Hand Leaver is a ..
4,241.00
Based on 10 reviews.
150NB CI-CAST IRON L&T Aquaseal Wafer Type Butterfly Valve PN10# With Gear Operated is a premium pro..
0.00
Based on 15 reviews.
150NB CI-CAST IRON L&T Aquaseal Wafer Type Butterfly Valve PN10# With SS 316 With Gear Operated is a..
0.00
Based on 11 reviews.
150NB CI-CAST IRON L&T Aquaseal Waffer Type Butterfly Valve PN10# With SS 316 Flow Control Hand Leav..
8,612.00
Based on 16 reviews.
150NB SG IRON L&T 150# Aquaseal Wafer Type Butterfly Valve PN20# With Flow Control Hand Leaver is a ..
0.00
Based on 6 reviews.
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