Svenska 
WM4SR, F05/CH11
Wirematic rack & pinion type of actuators, offer a wide range torque to generate a quarter turn movement.
In rack & pinion mechanism a circular gear (pinion) rotates by two gear bars (racks) due to the air pressure in the outer/inner chamber of the actuator. This results in a rotary motion of the actuator.
These actuators can be configured as spring return (SR) or double acting (DA). The springs are placed inside the piston rack in an anodized aluminium casing resulting in a high quality compact design, suitable for rotary valves.
| Product Name | WM4SR, F05/CH11 |
|---|---|
| Country of Manufacture | Sweden |
| Type of actuator | Single Acting (SR) |
| Model | WM4SR, F05/CH11 |
| Valve Type | Pneumatic Single Acting Actuator |
| Sealing | Buna-N (NBR) |
| Material body | Anodized Aluminium |
| Max Temperature [°C] | +80 |
| Min Temperature [°C] | -30 |
| Operation Method | Pneumatic Actuated |
| Hand lever | No |
| Torque [Nm] | Start - 27 Nm, Stop 15 Nm |
| ISO 5211 | F05/11 |
| Supply | 6 Bar |
| Application | Compressed air |
| Length [mm] | 133 |
| Height [mm] | 90.5 |
| Width [mm] | 87.5 |
| Net Weight [kg] | 1.9 |
| Statistics code | 84123900 |
| Applications | Inert gases |
Pneumatic Spring Return (SR) actuator Wirematic (Type 1)
Fail Close (FC)
Torque at air supply 6 bar/80 psi
Air-Start: 27 Nm
Air-End: 15 Nm
Spring-Start: 26 Nm
Spring-End: 14 Nm
Temperature range (standard) -30°C to +80°C
O-rings in NBR
