Process interlocking Process Interlocking

Netherlocks interlocking products enforce and guarantee a pre-defined sequence of operation and so eliminate human error. They are used as an industry standard by renowned companies like Total, BP, ADCO and Shell to create a safer working environment.

Netherlocks has developed process interlocking solutions for various applications such as pressure relief valves (PSV, pig launching and receiving, inert gas systems, pump start up, flare lines, boiler blow-down, ‘2 out of 3‘ and decoking.

Valve interlocks

“Netherlocks has supplied manual valve interlocks for many of our FPSO’s. They provided excellent support, from specification to delivery and final installation of our projects. Due to their extensive experience, Netherlocks is considered by SBM to be a key player in the interlocking market.”

Engineering Team Topside SBM Offshore (USA)


There are many applications of Netherlocks interlocking products that add value, protect people, the environment or company assets. By using Netherlocks products companies can also comply with country specific legislation and safety rules.

Valve interlocks for pressure relief valves

Netherlocks valve interlocks add value in many applications


Various PDF documents and datasheets on Netherlocks valve interlocks are available in the downloads section of this website.