Pig launching / receiving 
Pigging operations are generally recognized as highly dangerous and even deadly. Operators can get in contact with dangerous gasses, often under high pressure. Netherlocks valve interlocks avoid human error and subsequently, dangerous incidents.
Please contact us for examples of sequence drawings for pigging applications
The Netherlocks Closure Lock, as part of a valve interlock sequence, prevents opening the door in case it is not safe. All critical valves can only be operated when the closure is fully closed and locked.
Different sequence options
Many different sequence options exist for a wide variety of pigging operations. With many years of experience Netherlocks can thoroughly advice and design valve interlock solutions for all pigging operations. Our experienced engineers know how to install Netherlocks interlocks in the most practical and effective way.
Especially for pigging operations, integrating the characteristics of purely mechanical valve interlocks into new electronically powered solutions for control and safety can create a higher overall process safety level.
