Depends on the solid content, which you need to quantify.I would only qualify it as a fatal error if by oversight a pilot operated safety valve is selected.

Safety instrumented functions (SIFs), also known as safety loops, are comprised of a sensor to sense the process condition, a logic solver to decide the safety action to take

The threaded end connects to the pressure tank and the flex/push on end connects to the pipe between the compressor and the tank but is before a one way valve see picture.

The leak came about when I changed the seals on the sight glass; a rather complex task and, in my case, expensive too (in that I broke 2 sight glasses in the process).

Dresser Consolidated is one of few safety valve suppliers in the world that can comply with the full scope of products and stringent certifications required for the nuclear power industry.

Safety valve is the process equipment and piping overpressure protection device INS630b

A pressure relief valve that is actuated at a set temperture. ie the device remains closed until it reaches 150F at wich point pressure is released.

Most of our safety valve vent directly into a flare header making it difficult to determine if one has lifted. One way is to put a bursting disc on the discharge side of the safety valve.