The Alcatraz closure door lock is designed to interlock the closure door of a pigging vessel. The quick opening closure lock prevents the bleed plug from being removed, this means it prevents the closure door from being opened. Only the insertion of a dedicated key releases access to the bleed bolt, so it can be removed. This key is only released after the door is closed and the bleed plug is back in its place.
During the pig launching and receiving procedure, the operating written procedures must be followed carefully by the operators. If the vessel is not drained and vented, or when the isolation valves are not fully closed before opening the closure door, extremely dangerous situations can transpire. The Alcatraz Interlocks closure lock (CL), as a part of an interlocking sequence, prevents these hazardous situations. By guaranteeing and safeguarding that the isolation valves are closed and the vessel is vented and drained before the closure door can be unlocked and opened.
Alcatraz Interlocks’ closure locks can be used for pig trap vessels / systems.
The Alcatraz closure lock is suitable for all types, sizes and different manufactures of closure doors.
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An Electrical Key Cabinet consists of integrated electromechanical components preventing key removal.
The spare keys are intended to briefly replace a lost key until a replacement has been purchased.
This is a mechanical device that is designed to fulfil client's complex non-linear Interlocking Sequence requirements.
