Main features:
•AT series pneumatic actuators are divided into double-acting type and single-acting type (spring return).
• Angular stroke output to meet the needs of various valves in common use with small torque rotating.
• The cylinder body is made of die-cast aluminum alloy (Aluminum alloy with hard anodic oxidation wear - resistant, anti - corrosion, long operating life).
• The bottom fixed hole is convenient for actuator to connect with the valve and make it aligned, in accordance with ISO5211/DIN3337 standard.
• Use clean air as medium, high safety factor.
• Basic design: pneumatic double piston rack and pinion transmission mechanism.
• Powerful accessory functions: single (double) electric solenoid valve, limit switch, electrical positioner, air treatment FRL and manual operating mechanism can be equipped, fully realizing automatic or manual control.
• External protection: corrosion resistance up to 500 hours in salt spray. Comply with ASTM B117 standard.
Main parameter:
| Working Medium | Clean air filtered, dried,and fueled by mist. |
| Working Pressure | Double acting:0.2~0.8MPa |
| Single acting:0.4~0.8MPa | |
| Working temperature | Normal temperature(Use NBR O ring)-20°C~+80°C |
| Low temperature (Use silicone O ring)-40°C ~+80°C | |
| High temperature(Use viton rubber O ring)-20°C ~+180°C | |
| Rotation angle | Standard:0°~90°±5° |
| Non-standard:0°~180°±5° | |
| Output torque | Double acting:0~13022N.m |
| Single acting:0~6728N.m | |
| Air interface | G1/4", G1/2" |
Zhengzhou chaofan valves and control Co.,ltd., founded in 2007, which is a technology industrial limited company with registered capital up to 50 million RMB, is professional in the design, production, and sales of valves, pneumatic actuators and instrument valves.
The company is located in valve industrial park, gaoshan town, xingyang city, henan province, China, its floor area more than 26668 M2 and buliding area more than 20000 M2. There are 6 professional valve engineers with bachelor degree above,11 technicists with college specialized schools, and more than 160 emplyees. There are quality control department, research department, personal department, management, stock department, financial department, independent group of the general manager. Automatic control valve is widely used in petroleum, food, chemical,oil refining, papermaking, steel, thermal power plant, shipbuilding, waster water treatment, waste gas recovery and other industrial automatic control pipeline, Instrument valve is widely used in petroleum, chemical, nature gas, thermal power, nuclear power, papermaking, food, semiconductor,TFT,LNG and other instrument valve control pipeline.
In 1991, the company passed ISO9001 international quality management system certification and obtained the import an export qualification of foreign trade.
In 1995, it was awarded "enterprise civilized unit"by henan provincial government and "henan consumer quality assured brand".
On the 10th anniversary of the company's establishment in 2000, we invited people from all walks of life to hold a large scale seminar on "automatic control valve"in zhengzhou.
Since 2016,the company has obtained ten national design patent certifcates.
In 2009, the company was rated as one of the top ten"excellent units"by "henan yudong chamber of commerce".
In 2016, the company registered brand trademark"zhengchao"was selected as the famous trademark of henan province.
The company make chaofan people with "humanistic, scientific, spirit , modern concept, harmonious development". At the same time,the chaofan people has won the praise of new and old customers with the superior, high quality after-sales service, reasonable price, accurate delivery time, win-win business philosophy.