Portable Pump Station (PPS) from ORTEC provides a convenient mechanical vacuum pump, Edwards Model RV8, for evacuating detector chambers of many types. This two-stage, rotary-drive pump is fan-cooled, with positive oil feed, wide oil level tolerance, oil anti-suckback device, and Viton seals. The pump may be configured for two pumping modes and three gas ballasting modes to match most requirements. The PPS is shipped completely assembled and filled with oil — ready to use.