| |
| Resilient
seat gate valve has many advantages against old fashioned metal seated gate valve.
Lack of valve pocket for gate seat maintains smooth and unobstructed waterway
and eliminates depositing of impurities which may cause ineffective shut-off and
leaking from metal to metal contact in time. Resilient seat contact is easily
and perfectly maintained and this allows quick and perfect change of gate without
dismantling the valve from pipeline when the rubber lining is worn out. In turn,
when the metal-seated gate valve leaks, it should be returned to its factory for
renewing and precise machining of metal seats, or it should be thrown away. | |
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| | |
Available
Types
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|
Advantages of Resilient
Seat Gate Valves
|
- Different face to face dimensions available
for double flanged valve in accordance with different standards such as BS 5163,
DIN 3352 4A and 4B, etc.
- Different
types of valve body design maintain so many applications for steel, cast iron,
ductile iron, PVC piping and even connecting/converting different types of pipes.
- The
gate completely with EPDM rubber by vulcanizing
- The
gate completely with EPDM rubber by vulcanizing
- No
seat for the body and gate inserted;
- The
waterway in the area shall be smooth, unobstructed and free of cavities
- Very
low pressure losses, no debris trap due to smooth water passage
- All
internal parts, especially the gate can be replaced without dismantling the valve
body from pipeline.
- Stem O-ring seals
can easily be replaced while the valve is open under service
- Valve
can be installed in any position
|
Applications
( Available for both resilient and metal seat gate valves)
|
- Drinking water
- Sewage
- Air conditioning
- Heating
systems (up to 70°C)
- Food industry
- Fire fighting
- Natural
and inert gas
- Irrigation
- Waste
water
| | | | Coating
| | Inside
and outside of resilient seat gate valves are coated by elctrostatic or fusion
bounded epoxy powder, standard paint blue in color (RAL 5010). Suitable for drinking
water. Other types of paint and any color are available upon request. Inside,
enamel coated valves available upon request. Inside and outside of metal seat
gate valves are coated by coal tar epoxy as standard. Other epoxy colors are on
request. | |
| |
Testing
of SMS Gate Valves
|
| Both
resilient and metal seat SMS gate valves have been cycletested thousands of times
in excess of the required standard and has still maintained a buble tight seal
and easy closing/opening action. Applied standard tests are hydraulic tests for
body and seat. Operating torque test is on request. |
| |
Standard
Hydraulic Test Pressure
|
| Hydraulic
test to DIN 3230 Part 4 |
- Working pressure : 10 - 16 - 25 bars
- Body
test pressure : 1.5 times nominal pressure applied by closing both ends
- Seat
test presuure : 1.1 times nominal pressure applied from both sides
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| Accessories |
| |
- Position
indicator
- Console flange for electric
actuator
- CCW closing
- Rising
/ nonrising stem
- Actuators (electric,
pneumatic, hydraulic)
- Electric limit
switch
- Extension spindle
- Surface
box
- Headstock
- Chainwheel
and chain with overhead valve
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