GG Interlocks For Wheel Operated Valves

Discontinuation of Ellis interlocks

Sofis is continually looking to improve its product offerings and streamline its processes to offer customers the best solutions available for managing valve operations.

In order to improve our ability to accommodate emergency shipments and make room to grow in our newer and innovative solutions, we must discontinue production lines that are in low demand
and decreasing year over year.

Sofis will be discontinuing the Ellis line of interlocks effective in December of 2018. We will be accepting final purchase orders until December 7th 2018.

The Ellis chain lock will continue to be produced, as well as spare keys.

The Sofis brands, Smith flow control and Netherlocks are our leading interlock lines that include the latest developments to suit all interlock requirements.

Please consult a Sofis representative to understand how we can replace your current Ellis locks with a Sofis interlock system.

Ellis provides a range of devices for interlocking multi-turn valves.  Units are available for gate, globe and diaphragm valves, whether handwheel or gearbox operated.  Constructed of stainless steel, the units replace the existing valve handwheel without further modification.  Single key interlocks release a key in either fully open or fully closed positions, whilst dual key units can lock valves in both positions.  Units are easily adjustable in service to allow for valve seat wear.



Ellis ‘GG’ Valve Interlock is suitable for all types of wheel operated valves

From Left to Right:

  • A DKI-GG Dual Key Interlock fitted to a gate valve
  • A DKI-GG Dual Key Interlock fitted to a ball valve complete with worm gear operator
  • SKI-GG Single Key Valve Interlock fitted to a Diaphragm Valves