Single “small bulk” station

Also called “expansion line”.

The customer accepts to temporarily shut the installation down due to a possible breakdown in the pressure reducing station. In this case, the customer must have a replacement gas regulator available

Single first expansion stage station equipped with a “small bulk” pressure limiter

Also called “single expansion line”.

No shutdown of installation operation is accepted.

If the line is defective “gas regulator breakdown”, the other expansion line is used. The defective line is then isolated for repair.