Rack And Pinion Pneumatic Rotary Actuator Air Consumption Control For Valves
rack and pinion pneumatic rotary actuator air consumption control for valves
Pneumatic Actuator
How do pneumatic valve actuators work?
A Pneumatic actuator typically consists of piston(s) fitted inside a hollow cylinder. Pressure is applied to a side of the piston inside the cylinder. As a result of pressure and the area of the piston, a force is generated that moves the piston along the axis of the cylinder, transferring such energy to the valve to be automated.
The piston then returns to its original position by a spring (fig1) also known as a spring-return actuator. Or compressed air being applied to the other side of the piston (fig2) known as double-acting actuators.
| 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 |
XM AT series Pneumatic Actuator is made of dual pistons driven by racks and pinions. There are two models. One is Dual Acting model, and the other is Spring Return model, which can suit various flammable, corrosive, dusty, strong magnetic field, radiation, vibration corrosive environment indoor or outdoor.
Auto-control in the field of electric power, petrochemical, metallurgy, petroleum, gas, town, construction, drainage, chemical industry, oil refining, mining, power plant, metallurgy, architecture, medicine, food, gas, scientific research, etc.
Introduction
I. Actuator Body
Boy material is aluminium alloy. Internal and external surface are treated with anodic oxidation and polishing. Outer surface is nickle plated so that the anti-corrosion fuction of actuator and minimum friction against pistons can be guaranteed.
II. End Cover
End cover material is die-casting aluminium. End cover is treated with epoxy polyester so as to best guarantee the anti-corrosion performance.
III. Drive Shaft
The drive shaft material is medium carbon steel with fine processing and nickle plating so that the pistons have better quality in anti-corrosion, anti-friction, etc.
IV. Piston
Piston material is die-casting aluminium alloy. Maxmium torque can be output when the actuator is actuated with certain pressure.
V. Piston Seal
NBR-70 rubber sealing is applied to ensure the normal and reliable performance of actuator under normal temperature. FPM can be also applied according to clients' requirements.
VI. Travel Adjustment
Plus/Mimus 5 degree travel can be adjusted through the two bolts.
Main Features
-1). Our design, material and size are definitely accord with ISO9001:2008, CE Certificate and ATEX Certificate.
-2). Our piston is treated thermal quenching to obtain better strength and prolong using life.
-3). The surface of our actuator body is treated hard anoidizing to against rust and scratch.
-4). We provide with OEM service
-5). Strict quality control
-6). Better quality at a better price
-7). Excellent After-service.
-8). Fast delivery time
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.