Valbia manufactures rack and pinion pneumatic actuators, available in spring return or double acting version, with 0°-90° standard rotation or 0°-180°, and are standardly furnished with VITON seals. Valbia offers a product with a unique patented design, which is able to guarantee high quality standard, performance and reliability.Valbia actuators are versatile and suitable to different applications and operating conditions.
Valbia pneumatic actuators are available in three versions:

• The 82 series aluminum with 0°-90° rotation
• The 83 series aluminum with 0°-180° rotation
• The 84 series stainless steel with 0°-90° rotation

The 84 series also features:

• High Temperature as Standard - to withstand temperatures up to 302° Fahrenheit (150° C)
• Low Temperature Option: For Applications that require the use down to -40° Fahrenheit (-40° C)
• P303 Stainless Steel pinion

The 84 series presents the same compact design and the same technical features of the 82 series, but it has stainless steel (A351 CF8M) body, caps and pinion, and is available in 5 models.

Available SR84 Models

Actuator Sizing For Pneumatic Spring Return

The output torque of a spring return actuator is not consistent but decreasing. This is due to the action of the springs. When compressed by the air pushing out the pistons, they accumulate energy which will be available in a decreasing way during the clockwise rotation inversion. Please consult the information below for torque calculation.

SR Torque Output

Please click on the table below to expand

View Specifications