Interlock Safety - Guardian Interlock Systems

Accident traps pigs caused by operator error can be avoided by using Smith Flow Control, the key lock system interlock safety.

Mechanical lock security is the only technology able to meet the safety requirement universally accepted for loading and unloading of pig traps ensure that the ship is removed before it is possible to open the vessel lid interlock safety. Operators can not bypass the security system, which eliminates the risk of " operator error.

SFC lock can be specified to ensure minimum safety drain valve block with pork tail interlock safety, which ensures that the vent is opened and depressurized before the operator is allowed to open the door from closing.

Motorized Valves (MOV) are frequently used and locked in the pig trapping procedure because the valves are too large and heavy for manual operations. When electric actuated valves must be associated with manual valves and tank cover, locking key system checks the position of the valve (open and/or closed) interlock safety, independent of any indication from edge to edge. In the case of a power outage during these operations, the integrity key sequence is maintained even if the valve is operated manually.

Major part of the sequence interlock safety

This is accomplished by inserting a coded locking device mounted on the wheel assembly to the hand control unit that engages with the drive key interlock safety, the other key in the encoded sequence are released once the valve has completed its full stroke.

Sequences of times pitchers operating systems/receptor complex may include variations. The range of applications which process the SFC blocks can be applied is unlimited and measurement systems can be designed for the specific needs of client processes interlock safety.

For example, the simple locking system is linear, but non-linear sequences occasionally need to integrate the control of complex nitrogen purge interlock safety, pressure equalization, aeration and drainage . SFC has been developed for sequence control unit (SCP) is a mechanical key device located near the valve transmitter.

It differs from the units of traditional key exchange, entering a license key, a switch is activated at a fixed position before issuing the next key. Thus, complex sequences can be accommodated interlock safety using the same principles of safety.