Description

All models and sizes of Weco® butterfly valves can be equipped with Weco® operators or actuators as well as other brands of actuators. Typical options include standard and throttling handles, gear operators, chain-wheel operators, vane actuators, pneumatic actuators, special controllers, and positioners.

Standard Handle - 2 through 12-inch valve sizes

Recommended service - Manual on/off service


  • Positive-stop gripper with integral locking lug ensures full open/full closed operation
  • Model 12 and 12N valves have a detent plate which bolts on the valve body in each of four quadrants
  • Model 22 and 22L valve have a pre-notched top flange with on/off detent positions


Pneumatic actuators - Quarter-turn, double acting actuator; 2 through 6-inch valve sizes

Recommended service - Compact, pneumatic actuator for on/off valve operation


  • The only moving part, the vane, is cast integral to the shaft for sturdiness; does not require field lubrication
  • Fully repairable in-line
  • Mounts directly to valve in any quadrant


Gear operators - Weatherproof, worm gear operator; 2 through 24-inch valve sizes

Recommended service - Manual on/off or throttling services


  • Operator has 90° travel arc with internal travel stop screws for a plus or minus 20° adjustment at either end of the travel
  • Mounts on the valve in any quadrant
  • Chain wheel attachment available
  • Hand-wheel shaft extensions available


Throttling handle - 2 through 12-inch valve sizes

Recommended service - Manual throttling service


  • Notched detent plate and positive stop gripper with integral locking lug ensures positive locking in any of 10 positions from full open or full closed operation
  • Detent plate bolts on the valve body in each of the four quadrants

*The product images shown are for illustration purposes only and may not be an exact representation of the product.