The Ellis 'GG' Valve Interlock is suitable for all types of valve which use a wheel as their principal operator. This includes (but is not limited to)

• Gate Valves
• Gearbox operated valves (e.g. large diameter ball valves)
• Globe Valves
• Knife (gate) Valves
• Diaphragm Valves

A DKI-GG Interlock fitted to a 3" Class 150lb Gate Valve

All Ellis valve interlocks are available in single key (locking in open OR closed positions) or dual key (locking in open AND closed positions) variations.

A DKI-GG Interlock fitted to a 4" Class 600lb ball valve complete with Worm Gear Operator.

SKI-GG Single Key Valve Interlocks fitted to 1" and 1 1/2" Diaphragm Valves

The Ellis '90L' Valve Interlock is suitable for all types of valve which use a lever (wrench) as their principal operator.

This includes (but is not limited to)

• Ball Valves
• Plug Valve Valves
• Butterfly Valves
• 3-way Valves

All Ellis valve interlocks are available in single key (locking in open OR closed positions) or dual key (locking in open AND closed positions) variations.

A DKI-90L Interlock fitted to a 3" Class 150lb Ball Valve

An SKT-90L Valve Lock fitted to a 2" Class 150lb ball valve.

A comprehensive and efficient  valve interlock system will be made complete if used in conjunction with a Colour Aware Key Cabinet. This is a key safe, located in a secure location under the jurisdiction of the IOM, Senior Site Superintendent or other similar autority.

If used in conjunction with the site Permit to Work (PtW) system, complete safety and security is assured.

Cabinet construction is rolled mild steel, epoxy paint coated. A Makralon (perspex) glazed door allows viewing of contents without the need to open the door.

Keys are retained on laminate, coded backing tags which display the words "Work in Progress" when a key is removed from the cabinet.

The coding system ensures only the correct key may placed on a designated tag location.

A variety of cabinet sizes are available to accommodate varying quantities of keys.