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[China]
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Address: No.25 Yingbin Road,Bixi New District,Changshu City,Jiangsu Province
Contact name:Wang
Changshu Kexin Automation Equipment Co., Ltd. |
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pneumatic actuator
The combined effect of air-flow friction in the tube, flow limitations inherent to the controller mechanism, and volume inside the valve actuator conspire to create a sluggish valve response to sudden changes in controller output signal, not unlike the response of an RC (resistor-capacitor) time-delay circuit where a step-change in voltage input results in an inverse exponential output signal.
If the pneumatic valve actuator is driven by an I/P transducer
instead of directly by a pneumatic controller, the problem is
lessened by the ability to locate the I/P close to the actuator,
thus greatly minimizing tube friction and thus minimizing the “time
constant” (
) of the control valve’s response:
Specifications
1. CE and ISO certificate
2. Strictly quality control
3. Good quality at a favorable price
4. Excellent After-service
5. Fast delivery time
| Material | Extruded Aluminum alloy |
| Rotary Angle | 0~90 degree |
| Structure | rack and pinion rotary actuator |
| Working Pressure | 2~8bar |
| Surface Treatment | hard anodizing |
| Working Temperature | Normal Temperature: -20ºC(-4°F) ~ 80ºC (+176°F); High Temperature: -15ºC(+5°F) ~ 150ºC (+302°F); Low Temperature: -40ºC(-104°F) ~ 80ºC (+176°F). |
| Connection | NAMUR, ISO5211 and DIN3337 |
| Application | ball valve, butterfly valve, and rotary machine |
| Cup Color | grey, black, sky blue, dark blue, red, orange |
pneumatic rotary actuator
AT series DA(double acting) and SR(Spring Return) Pneumatic Actuators are mainly for Pneumatic Butterfly Valve and Pneumatic Ball Valve.
XM series pneumatic actuators statement of usage and selection
The extruding high intensity aluminum body possesses a honed internal surface coated with hard anode oxygenation for long life. Low coefficient of friction and swift performance.
Excellent compact and modernized construction along with multi specifications makes the selection both economic and beneficial.
All acting surface adopt high quality bearing resulting in low friction, high cycle life, and no noise
The two independent external stroke adjustment bolts can easily and precisely adjust ±5°at both open and close directions.
Same outline actuators have the functional modes of double acting and single acting (Spring -Return). The Spring-Return has the normally-open and normally-close styles.
Multi function indicator with NAMUR is convenient for mounting accessories.
Pre-compressed load spring is convenient for safe mounting and tear down procedures.
Die-casting aluminum pistons and end caps have high intensity and light weight.
Different O-rings materials are available for high and low temperature.
