The Spencer Turbine Company introduced the first hermetically sealed multi-stage gas boosters.
These boosters utilize Spencer's standard overhung blowers, with multiple impellers of spark resistant aluminum alloy mounted directly on heavy duty extended motor shafts.
Each blower/motor combination is sealed within a hermetic vessel to eliminate shaft leakage.
The leaktight hermetic design, simple direct drive arrangement and generous internal clearances add up to long-term reliability and quiet operation - well within OSHA limits.
The unique Spencer design also provides a continuous flow of natural gas around the explosion-proof motor, cooling the motor and extending its life.
In addition to standard commercial tests for volume, pressure and power input, Spencer natural gas booster casings are carefully leak-tested to assure gas tight construction and performance.
Electrical connections are made through a terminal box on the outside of the casing.