Operator Options – ST

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.

Chain-wheel

adapted bonnet for valves in elevated positions – fitted with chain wheel, 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