Our manual operators can be specified with optional bonnet, handwheel, spindle and compressor materials to meet demanding service requirements and hostile operating environments.

Where operational access is limited, custom extension spindles and chainwheel adaptors are available.


Chain-wheel bonnet adaptor

Actuated valve with 2.7 metre extension
spindle, sealed stem & custom bonnet shell breather. Used in DAF water treatment.

Optional lockout device

Rising & non-rising handwheels can be factory fitted or field retro-fitted with our proprietary lockout device. Constructed from Stainless Steel, the lockout device enables the valve to be locked in the fully open or closed position or an intermediate position.


adapted bonnet for valves in elevated positions – fitted with chainheel, guides and chain to suit the “drop” required.

Extension Spindle

for valves in inaccessible positions – can be single straight extension or fitted with single /multiple universal joints and/or fitted with key operation for pit environment.

Stainless Steel bonnet assemblies

in Non Rising handwheel configuration for environmental corrosion applications with OH&S lockout system as an option. Larger sizes fitted with ball thrust bearing on handwheel.

Plastic bonnets and Stainless Steel/Plastic bonnets

for environmental corrosive/high temperature services.

Sliding spindle bonnet assemblies

to suit adaption to specific automation systems – cylinders, diaphragm actuators.

Spindle/Compressor material options

  • Cast Iron
  • Ductile Iron
  • SS (CF8)
  • SS (CF8M)
  • Cast Iron (Halar® coated)
  • Ductile Iron (Halar® coated)

  • SS304
  • SS316
  • SS410
  • SS416

SS handwheel and Xylan coated fasteners

Stem sealed handwheel assembly with FKM O-Ring spindle seal.

FBE/nylon coated rising handwheel

Lockable rising handwheel

Lockable rising handwheel