Pneumatic valve actuator is an executive device that uses air pressure to open and close ball valve, butterfly or regulating valve. The pneumatic actuator powered by compresses air is easy to repair and maintain, and has good adaptability to the environment.

Specifiation

• Model: RDDLZ-AT190D
• Bore Size: 190mm (7.48 inch)
• Air Supply Port: 1/4 inch
• Power Source: Compressed Air
• Actuator Type: Double Acting
• Air Pressure: 2.5bar ~ 8bar
• Max Working Pressure: 10bar
• Operating Temperature (Optional): -20℃ ~ 80℃, -35℃ ~ 80℃, -20℃ ~ 150℃
• Rotation Angle: 90°±5%
• Body Material: Aluminum Alloy
• Life Time: One Million Time

Dimensions

RDDLZ-AT190D

Details

Tips: Pneumatic valve actuator vs. electric valve actuator

Pneumatic valve actuator advantages

• The load is large, which can adapt to the application of high torque output.
• Quick action and quick response.
• Good adaptability to working environment, especially in harsh working environments such as flammable, explosive, dusty, strong magnetism, radiation and vibration, it is superior to hydraulic, electronic and electrical control.
• The motor is easily damaged when the stroke is blocked or the valve stem is tied.

Electric valve actuator advantages

• Compact structure and small size. Compared with pneumatic actuators, electric actuators are relatively simple in structure. A basic electronic system includes actuators, three-position DPDT switches, fuses and some wires, which are easy to assemble.
• The drive source of the electric actuator is very flexible. Generally, the on-board power supply can meet the needs, while the pneumatic actuator needs an air source and a compression drive device.
• Electric actuators have no danger of "air leakage" and are highly reliable, while the compressibility of air makes pneumatic actuators slightly less stable.
• There is no need to install and maintain various pneumatic pipelines.
• The load can be maintained without power, while the pneumatic actuator requires a continuous pressure supply.
• The electric actuator is quieter because no additional pressure device is required. Usually, if the pneumatic actuator is under heavy load, a silencer should be installed.