Ball valve with pneumatic rotary actuators double acting and spring return

Ball valve with pneumatic rotary actuators double acting and spring return

Pneumatic Actuator

Pneumatic pressure enters this housing applying pressure to the diaphragm. As the air pressure increases to the diaphragm the force exerted against the spring increases causing the actuator stem to move.

Reducing the pneumatic pressure will cause the spring to retract the diaphragm.

The actuator stem will move a valve in or out of a valve body.

In an air-to-open operating condition, the spring forces the valve closed.

The air pressure on the diaphragm creates a force that overcomes the force of the spring and opens the valve.

By rearranging the spring pneumatic supply, this type of actuator can fail-open or fail-closed when air pressure is lost.

Pneumatic actuator control valvesstatement of usage and selection

• Through research development and design AT series pneumatic actuators incorporate the latest technology materials and innovative idea. The product proudly boasts the following features.
• Full conformance to the latest specifications: ISO5211,DIN3337 and VDINDE-3854,NAMUR.

• 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.

• Solenoid valves are easily mounted without any connecting plank.

Product Application

Changshu Kexin Pneumatic Automation Equipment Co., Ltd.China professional manufacturer, OEM factory and solution supplier of electro pneumatic positioner, valve positioner ,pneumatic actuator，valve accessories etc.

Our company has an excellent reputation for high performance, quality products and reasonable price. These products include electro-pneumatic positioner， pneumatic actuator，limit switch box，gearbox，air pressure regulators, . We distinguishes itself from competitors in the unique ability to adapt its products to customer-specific applications through joint development projects and strategic design partnerships.

To remain a technological leader in the Automation Instrunment Industry in China, We strives for excellence through quality assurance programs and investment in advanced machine tooling. We continuously improve our production and inventory management equipment and techniques, as well as our just-in-time manufacturing and delivery capabilities. Our company is committed to meeting requirements and increasing customer satisfaction through continually improving the effectiveness of our Quality Management System.

Welcome the friends all over the world for cooperation.