VR

VR

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.

Brand: Valtek
Category: Modulating
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

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