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Smith Flow Control’s line of key interlocks safeguard against improper process execution for the loading and unloading of pipeline inspection gauge (PIG) launchers and receivers.

The interlocks are single- or dual-keyed mechanical locking devices used to control the sequence in which process equipment may be operated.

Using a key transfer principal, operational control over safety-critical processes can be ensured.

The use of interlocks is recommended by a number of internationally recognised standards for specific process applications such as oil, gas and chemical.

SFC interlocks are constructed of stainless steel and lubricated for life.

Each interlock is quickly installed on any standard sized valve or associated equipment with no modifications required.

SFC also offers customised solutions to customers with specialised requirements.

Smith Flow Control

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