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Minimum Order
Localité:
-
Prix de commande minimale:
-
Commande minimale:
-
Packaging Detail:
Box in Palette
Delivery Time:
4 weeks
Supplying Ability:
-
Payment Type:
T/T, Other
Personne àcontacter Ms. Qi
2nd Floor, Unit 26, Wisdomland Business Park, Nanshan, Shenzhen, Guangdong
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Application
Applied on small/middle rotary
valves, such as ball valve, butterfly valve.
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Technical Parameters
1. Work Medium
Dry
or lubricated air or non-corrosive air. Dust below *0
micron.
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2. Air Supply Pressure
Min. air pressure is 2.5bar, max. air pressure is 8bar.
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3. Operating Temperature
Standard: **0℃~**0℃
Low: **5℃~**0℃
High:
**5℃~***0℃
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4. Stroke Adjustment
±5°
Adjustment range at 0° and *0° point for rotation
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Structure
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1. Indicator
Multi-function position indicator
with NAMUR is convenient for mounting accessories such as valve
positioner, limit switch.
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2. Pinion
The
pinion is high-precision and integrative, made from nickel-plating
steel, full conform to the standards of ISO****1, DIN***7, NAMUR.
The size can be customized and stainless steel is
available.
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3. Actuator Body
According to the different
requirements, the extruded aluminum alloy ASTM***5 body can be
coated with hard anodized, polyester, PTFE or
nickel.Â
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4. End cap
End
caps are made of Aluminum die-casting, and can be coated with
polyester, metal powder, PTFE and nickel.
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5. Piston
The
twin rack pistons are made of aluminum die-casting coated with hard
anodized or steel coated with Zinc. Long lifespan, fast operation
and reversed rotation by simple
reversing.Â
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6. Stroke adjustment
The
two independent external travel bolts can accurately adjust ±5°at
both open and close position.
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7. High performance spring
Preloaded springs are made from
high quality material for resistant to corrosion and longer
lifespan, which can be demounted safely and conveniently to satisfy
different requirements of torque by changing quantity of
springs.
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8. Bearing & Guide
Made
from low friction, long-life compound material, to avoid the direct
contact between metals. The maintenance and replacement are easy
and convenient.
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9. O-rings
NBR
O-rings provide trouble-free operation at standard temperature
ranges. Viton or silicone for high and low temperature.
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Operating Principle
Double Acting
1.
Air from Port A forces the pistons outwards, causes the pinion to
turn anticlockwise while the air exhausted through Port
B.
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2.
Air from Port B forces the pistons inwards, causes the pinion to
turn clockwise while the air exhausted through Port A.
Single Acting
1. Air from Port A forces the pistons outwards, causes the springs to compress, the pinion turns anticlockwise while the air exhausted through port B.
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2. Loss of air force, compressed springs force the pistions inwards, causes the pinion turns clockwise while the air exhausted through Port A.
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Non-standard rotation can be enforced by simple reversing the actuator. Air from Port A turn clockwise, from Port B turn anticlockwise.
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 Fork type for large valve is optional.
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