NR

NR

The Valtek NR diaphragm actuator is a compact actuator with high torque and pneumatic stiffness for excellent throttling capabilities. The splined shaft connection eliminates backlash for precise control. Designed for supply air pressures to 80 psi (6 Bar). The high stiffness and rolling diaphragm provides firm control from 0 to 90 degrees.

Brand: Valtek
Category: Modulating
Type Spring Diaphragm
Action Rotary
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

Diaphragm actuator provides excellent sensitivity to provide quick, accurate movements for precise process control

Rolling diaphragm creates minimal wear resulting in long operating life and the simple design allows easy maintenance

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