The Pipe Supports Blog » Pig Launchers and Receivers http://www.pipingtech.com/blog View standard and custom designed pipe supports from our past projects. Look at up-close pictures of variable spring hangers, constants and big ton springs. Read the project details, including specifications for a wide range of engineered products and services for various industries and applications. Tue, 22 May 2012 22:03:02 +0000 en hourly 1 http://wordpress.org/?v=3.1 ASME Code Pig Launchers and Receivers with a Safety Locking System http://www.pipingtech.com/blog/2011/01/03/pig-launchers-01295/ http://www.pipingtech.com/blog/2011/01/03/pig-launchers-01295/#comments Mon, 03 Jan 2011 15:58:05 +0000 Ray http://pipesupportsblog.com/?p=2107 ASME Code Pig Launchers and Receivers with a Safety Locking System

ASME Code Pig Launchers and Receivers

The pig launchers and receivers were designed for a coal-bed methane gas production facility in Colorado. They are equipped with an integral safety locking system which works on the principle of mechanical key interlocking (transfer of keys). This system avoids serious injuries from human error and insures safety of personnel.

ASME Code Pig Launchers and Receivers with a Safety Locking System

Safety Locking System

One starter key per launcher/receiver is kept in a box located in the control room. Each lock is executed with two keys. When the first valve is opened with this starter key, it releases the second key. This key is transferred to next valve which releases second key from that valve and so on and so forth. This process guides the operator through the specified sequence for opening and closing valves with unique a key for each step.

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