Valve Interlocks for lever operated valves:

Operation

Ensuring the safe operation of valves is essential in industries ranging from brewing and food production to  chemical manufacture and oil refineries. 

The uncontrolled opening and closing of safety critical valves could result in fatal injury to operating personnel, damage to plant and equipment, loss of product and pollution of the environment.

Valve interlock range

The ISS range of lever operated integral valve interlocks are designed to enable the locking of all sizes of lever operated  valves (ball, butterfly and plug ) in either the open and closed or the open or closed positions. Fitting the interlock enforces a logical, pre-determined and safe sequence of operation where the control of flow paths is critical.  The interlocks can be retrofitted on valves that are already in service with no requirement to break the valve pressure seal.  

 

 

MBV: Single & double key operation. Suitable for lever operated valves up to 50mm

E90L-SKI/DKI. All stainless steel. Suitable for lever operated valves up to 200mm

CBV: All stainless steel. Fitted with linear card keys 

Operation


Requirement - To prevent one flow path being closed before the other is open. 

Solution - Fit Interlock valves that can be locked in both open and closed positions. Using a single coded  inter-changeable key will ensure the first valve is open before the second is closed.

 

      Modular Ball Valve Interlock (MBV)
   Typical Application