Diaphragm Valves: Working Principle and Advantages
What is Diaphragm Valve?
A diaphragm valve is a type of linear motion valve
used to start, regulate, and stop fluid flow. The name comes from the flexible
disc that forms a seal with a seat located in the open area at the top of the
valve body.
Ablaze Lining is a distinguished Diaphragm Valve
distributor in Surat, Gujarat.
Working Principle:
Principle of Operation of Diaphragm valves are
actually "pinch clamp" valves. A stud moulded into a resilient,
flexible diaphragm connects it to a compressor. The valve stem moves the
compressor up and down in the valve diaphragm. As a result, when the compressor
is raised, the diaphragm lifts. As the compressor is lowered, the diaphragm is
pressed against the contoured bottom of a straight through valve or the body
weir of a weir-type valve.
The better throttling valve is the weir-type diaphragm
control valve, but it has a limited range. It makes use of a two-piece
compressor. When the valve is opened, instead of the entire diaphragm lifting
off the weir, the first increments of stem travel raise an inner compressor
component, causing only the central part of the diaphragm to lift. This results
in a small opening through the centre of the valve. After the inner compressor
is fully open, the outer compressor component is raised along with the inner
compressor, and the remaining throttling is similar to that of a conventional
valve. The stem of a diaphragm valve does not rotate.
If you are looking for the leading Diaphragm Valve supplier in Anand,
Gujarat, Ablaze Lining is the answer to all of your requirements.
Some diaphragm valves are equipped with a
quick-opening bonnet and a lever operator. A 90° turn of the lever shifts the
valve's diaphragm from full open to full close. Chain wheel operators, extended
stems, bevel gear operators, air operators, and hydraulic operators are all
options for diaphragm valves.
Ablaze Lining is one of the most noted distributor of Diaphragm Valve in
Gandhinagar, Gujarat.
Advantages:
●
Throttling service can also be provided by diaphragm valves.
●
Because of the large shutoff area along the seat, its
throttling characteristics are essentially those of a quick opening valve.
●
To control small flows, a weir-type diaphragm valve is
available.
●
Diaphragm valves are especially well-suited for handling
corrosive fluids, fibrous slurries, radioactive fluids, and other fluids that
must be kept clean.
●
A diaphragm valve's operating mechanism is not exposed to the
media within the pipeline. Sticky or viscous fluids cannot enter the bonnet and
wreak havoc on the operating mechanism.
●
Many fluids that would clog, corrode, or gum up the working
parts of most other types of valves will pass through a diaphragm valve with no
problems. Lubricants used in the operating mechanism, on the other hand, must
not contaminate the fluid being handled.
●
There are no packing glands to maintain, and there is no risk
of valve stem leakage.
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