If sequential control is unnecessary, a valve locking device can be used to temporarily lock off the valve. The valve locking device enables individual personnel to isolate equipment while they... read more →

Pigging systems are used to insert a pipeline inspection gauge (pig) into a live system transporting gas or liquid media, in order to perform various maintenance operations. As they involve... read more →

A pigging operation is dangerous, as opening a pig trap closure while there is pressure in the barrel can shoot the pig out of the launcher at high speeds. Attempting... read more →

A fatal incident on June 25th 2012 at a production facility of one of the globally leading oil companies in the United States proves the need for guaranteeing safe pigging... read more →

The proposed changes to the BSEE’s SEMS (Safety and Environmental Management System) summed up in the new SEMS II rule have been a major topic of discussion in the US... read more →

Mechanical valve interlocks guarantee strict adherence to procedure and thus avoid human error. They are particularly useful for operations that are generally recognized as highly dangerous, such as pigging. Valve interlocks... read more →

As part of the Sofis installation and engineering support programs, Sofis offers various practical training courses. These courses enable valve technicians to train basic skills on installing, setting and troubleshooting valve interlocks.... read more →