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Smith Flow Control’s Key Interlocks for PIG Launchers and Receivers

Posted: Thursday 16th December 2010

Interlocks safeguard against improper process execution.

The process of loading and unloading pipeline inspection gauge (PIG) launchers and receivers can have catastrophic consequences if performed incorrectly. A specific sequence of valves must be operated, pressurising and depressurising the PIG chamber in the same order every time, to avoid damage to equipment and injury to personnel. To protect this process, Smith Flow Control offers its full line of key interlocks.

Smith Flow Control’s 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, causing wide acceptance by many of the world’s oil, gas and chemical majors. SFC’s products are used on some of the longest pipelines in the world.

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.

For more information on Smith Flow Control’s complete line of mechanical valve control equipment, please visit the company’s website at www.smithflowcontrol.com or call +44 (0) 1376 517901.

Since 1985, Smith Flow Control, a Halma company, has been committed to providing quality assured products delivered on time at competitive prices. The SFC product range of drive systems and safety interlocks has evolved for over 20 years to provide highly reliable engineered process management safety solutions.




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