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| PNEUMATIC
DIAPHRAGM CONTROL VALVE |
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| Description
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| In automation,
Control Valves are key point of the process. Pneumatic Diaphragm
Control Valves can be operated by small air signals to get maximum
of flow. Construction and design of body gives higher Cv. With
specific design we can manufacture equal percentage flow and
linear flow characteristics. |
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Features
and Specialities:
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| Size
range : |
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1/2"
to 12" |
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Normal
operating air signals 15 to 35 psi |
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If
specified then operating air signals can be as low as 3 to 15
psi |
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| Types: |
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2-way
Valves |
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3-way Valves: |
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Mixing Valves |
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Diverting Valves |
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Can use
as on off valve |
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If specified
then can be constructed for equal % and linear flow characteristics. |
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Less wear
and tear parts; so longer life |
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Due to low
operating signals low power consumption |
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Adjustment
screw for tightining plug and seat to control leakage. |
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| Leakage
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| 0.1% of maximum
flow in metal to metal contact. However droptight can be offered
by soft seated. |
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| Materials
for Construction : |
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| Body
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CI grade
20 / WCB GR216 / CF 8m (S.S. 316) or as required |
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| Trim
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SS 304 / SS 316 / SS
410 or as required (metal to metal) |
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| Soft
seated |
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Silicon / Viton / P.T.F.E.
or combination of viton and PTFE as required (metal to soft
seating) |
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| Pressure
Class and Temperature : |
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INSI 150,
300, 600 etc or as required |
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Temperature range - upto
200oC |
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With Finned Bonnet -
upto 640oC |
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| Accessories
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1/4 " 2 way or 3
way solenoid valve |
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Air filter regulator
with pressure gauge |
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Top mounted hand wheel
for emergency operation |
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Valve positioner |
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| Valve Configuration
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Normally close / Normally
open |
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| End Connections : |
Flange end as per ASA standard
or BS10 standard or as specified |
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| Fluids handled : |
Air, cold water, hot water,
steam, oil, gas, chemicals etc. |
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| ECONOMY
DIAPHRAGM CONTROL VALVE |
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Description : |
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These Valves has only
difference that spring and actuator parts are visible and small
in constructions. It has except
that it can be used only as on off valves and withstand temperature
upto 160oC.
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