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Products of Excellence |
| Large size soft seated butterfly valves |
Conforming to American Water Works Association Standard, these valves
are the best choice as isolation valves for water and gas applications.
Ensuring bubble tight closure, due to soft seating, these are available in wide
range of size up to 2600 mm and materials to suit any process requirements.
These valves can be actuated manually, electrically or pneumatically with
facilities for remote operation. Optionally fitted with automatic trip
mechanism, they function as emergency shut-off valves. |
Low noise valve |
The low noise cage type control valves are
featured with very low
operating noise (aerodynamic noise) when they are used to handle compressive
fluids, such as steam, air fuel, gas, ethylene gas, etc. The cage and valve plug
are of multiple hole construction. The components " restriction", "divergence",
"expansion" are laid out in a rational manner to accomplish low noise
pressure reducing action. Valve plug is designed to produce no torque vibration.
Valve plug is held directly inside the cage to resist vibration and wear. The
modular concept in design and construction allows component interchangeability
with those of the VDC cage valves. Thus, valves can be disassembled and
reassembled resulting in quick maintenance, and minimising down time.
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Bellows sealed valves |
Escape of radioactive or toxic fluids to atmosphere is highly hazardous to
the environment. These valves are specially designed to prevent such escape by
provision of bellows seal with backup gland and leak off connection. To ensure
high reliability in any adverse working conditions these valves undergo very
stringent quality checks complete with well documented reports right from the
raw material stage-stretching throughout the various stages of manufacturing
activities till despatch .
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Control valves for high pressure drop service-model VHD |
Control valves used in feed water lines
 for duties, such as boiler
start up, feeder water pump re-circulation, water injection for de-superheater,
etc. experience large pressure drops. Cavitation generated during throttling
will cause severe problems such as erosion, vibration and noise. The newly
developed model VHD is designed so as to divide a large pressure drop into many
stages by the special construction of the plug and cage, thereby preventing
occurrence of cavitation. The distribution of pressure is made effectively
according to the characteristic of the process and the static pressure in the
throttling region is kept above the saturated pressure.
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