The Valtek VR rotary cylinder actuator is a high pressure, compact actuator with high torque and pneumatic stiffness for excellent throttling capabilities. The standard splined shaft connection eliminates backlash for precise control. Designed for supply air pressures to 150 psi (10.3 Bar) to eliminate the need for a pressure regulator. The high stiffness provides firm control from 0 to 90 degrees.
Additional information
| Type | Piston Cylinder |
|---|---|
| Action | Rotary |
| Sizes | 25, 50, 100, 200, 300, 400, 600 |
| Fluid Power | Pneumatic |
| Pressure Rating | 150 psig |
| Life Cycles | Standard: 150,000 to 500,000; UHC Design: 2,000,000 |
| Fail Safe Operation | Last, Closed, Open |
| Enclosure | Zinc Plated Steel, Painted Carbon Steel, Painted Anodized Aluminum |
| Manual Override | Side-Mounted, Top-Mounted and Push-Only Handwheel |
| Options | Ultra High Cycle, Extended Spring, Carbon Steel Cylinder, Fail Last Lock-Ups, External Volume Tanks |
Features & Benefits
- Rocking piston and splined shaft connection assures zero lost motion between actuator and valve
- Double-acting configuration responds quickly to signal changes
- Supply pressure is modulated to both sides of piston for stiff, precise actuator operation
- Small air volume between the piston and the bottom of the cylinder provides powerful pneumatic stiffness, without plug slamming
- Cylinder design uses less supply air than comparable diaphragm actuators
- 150 psi (10.3 Bar) operating pressure allows substantially higher thrust capabilities than comparable diaphragm actuators
- Periodic maintenance is easy to perform since the spring cylinder actuator only requires the removal of three parts to access all internal parts
- Failure mode is easily reversed without additional parts
Literature
| Flowserve-Control-Valve-Product-Guide-fcenbr00002-e |
Flowserve Control Valve Product Guide fcenbr00002 e.pdf |
| Flowserve-Valtek-VR-Literature-vlatb031_1 |
Flowserve Valtek VR Literature vlatb031_1.pdf |
