Norriseal has been a leading supplier of valve and control solutions for more than four decades.

Norriseal™ diaphragm actuators

Designed for snap or throttling service (when used with a positioner).

Series 2G

Available in four size ranges with torque output to 17,000 in. lbs.

  • Spring-return or double-acting
  • Spring Rotation from clockwise to counter-clockwise is field-reversible
  • Easily adapted to various mounting styles and shaft types
  • Can be actuated with as little as 10 psig supply air
  • Adaptable to water or oil as the supply source
  • Wide range of switches, positioners and other accessories can be mounted