Diaphgram Valves |
OVERVIEW :
Diaphragm valve is an isolation valve. The
sealing element is a resilient diaphragm, sitting on the valve body.
The body may be either metallic, plastic or lined, thus enabling users
to design what is best suited for the application.
The resilient diaphragm provides a seal between body and the bonnet.
Diaphragm valves may be manually operated by handwheel or automated by
pneumatic or electric actuators. The two configurations of Diaphragm
valves – weir and straight through type when combined with their
key features, enable the valve to be used in diverse industries
providing solutions to problems of :
- Corrosion
- Abrasion
- Logging
- Contamination
- Modulation & Control
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| Key Features : |
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- In – line maintenance – diaphragm
and operator can be replaced without dis-assembling the body from the
pipeline. Regular diaphragm inspection, replacement when necessary,
will increase valve life.
- Bonnet isolation – all bonnet components are isolated from the service fluid by means of the diaphragm.
- No packings / gaskets are required, thus eliminating a common leak path found in other design valves.
- Resilient diaphragms ensure positive leak tight closure.
- Design flexibility – wide range of diaphragms, linings and operators offering scope to maximize valve life.
- Over closure protection – lowers cost of
owning our diaphragm valves by reducing the possibility of over
closure, which decreases diaphragm and valve body life.
- “W” Diaphragm valves are especially suitable for vacuum services (with vacuum – type diaphragms)
- The valves are self - draining and self – cleaning when installed at a certain angle on the horizontal plane.
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