What happens when a valve is locked out?
In the event that the worker leaves the work area, the valve is locked out and tagged out (LOTO) per your Energy Isolation Policy. Also, per your Energy Isolation Policy other personnel are made aware when this task is being performed and personnel are trained and periodically audited to ensure that they never leave the job without proper LOTO.
What kind of system is a valve interlock?
The Actuator Locking System is a mechanical system that links a Motor Operated Valve (MOV) into the mechanical valve interlock steps or process The Actuator Switch Lock Panel is an electronic locking system to include MOV’s into mechanical valve interlock systems.
Can a single key lock block a valve?
Single key locks block a valve in either open or closed position and are commonly used for locking stand alone valves. Double key locks block a valve in both positions and can be interlinked with other double key locks into one operating sequence.
How is the Als used in Valve interlocks?
It locks and regulates operation of the local controls and manual override of your actuators. With the ALS, you can fully integrate your actuators into valve interlock procedures and sequences. Using the Actuator Switch Lock Panel (ASLP) you can manage the local controls of your actuators from a remote location.
How does an operator operate a locked valve?
When this has been done, the operator is able to operate the valve by turning the hand wheel or sliding lever to the open position. When using double-key valve interlocks, the ‘open’ key has to be removed from the right-hand side of the interlock to lock the valve in its open position.
In the event that the worker leaves the work area, the valve is locked out and tagged out (LOTO) per your Energy Isolation Policy. Also, per your Energy Isolation Policy other personnel are made aware when this task is being performed and personnel are trained and periodically audited to ensure that they never leave the job without proper LOTO.
How often should a locked closed valve be changed?
Locked Closed (LC) Valve 1 The locked status at site shall be maintained in the appropriate register. 2 Some organizations audit on LC, LO status for every four months. 3 Permit to work system procedure need authorization while changing normal state of a locked valve. More
How do you close a locked valve in Sofis?
When using double-key valve interlocks, the ‘close’ key has to be removed from the left-hand side of the interlock to lock the valve in its closed position. The valve will already be locked closed before the ‘close’ key is completely removed. Once the key has been removed, the operator will be able to operate the next valve in the sequence.