PCU’s helium recovery systems are designed for plant wide use, each recovery system is engineered for specific plant capacity requirements. The system is connected to multiple helium proof test or burst test stands. The helium from these stands enters the salvage tank of the recovery system. The helium is processed through oil separators and moisture filters for oil and moisture removal. The recovery system boosts the helium pressure to the required test pressure at the proof test or burst test stands. The recovery system can provide and maintain 100% helium concentration or a concentration less than 100%.