The Valtek FlowAct pneumatic diaphragm actuator from Valtek is a high-thrust, multi-spring actuator for direct or reverse action, easy installation and field reversible without additional parts.
Additional information
| Type | Spring Diaphragm |
|---|---|
| Action | Linear |
| Sizes | 125, 250, 500, 700, 1500, 3000 |
| Fluid Power | Pneumatic |
| Pressure Rating | 29-80 psig |
| Fail Safe Operation | Last, Closed, Open |
| Enclosure | Painted Anodized Aluminum |
| Temperature Range | Standard: -40°C to 80°C (-40°F to 176°F), Extended: -60°C to 80°C (-76°F to 176°F) |
| Manual Override | Side-Mounted, Top-Mounted and Central-Mounted Handwheel |
| Options | Internal Air Supply to Yoke, Double Stacked |
Features & Benefits
- Radial spring arrangement permits a low mounting height
- Low volume between diaphragm and case gives fast response times
- Strong operating force by permissible pressure supply up to 6 bar / 87 psig
- Permissible ambient temperature -40 up to 80°C, operating in the limits temporarily allowed otherwise lifetime will be reduced
- Fabric-reinforced, roll-type diaphragm with minimum area variation allowing linearity to be maintained throughout various stroke positions, even upon loss of operating forces
- Positioner direct mounting without tubing (spring to close)
- Safety Integrity Level (SIL) 3 Capable
