With more than 70 years of innovative design, Sauer Gas Compressors have long convinced customers of their worth in numerous fields of application for process engineering that requires high quality compressed gas or air. Experience and know-how make it possible as well as individually designed compressor packages. Today we offer 3- and 4-stage gas compressors for up to 7250 PSI in an extensive, and standardized, product range.

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Sauer WP15L Compressor

Sauer WP271L Compressor

Sauer WP4325 Compressor

Sauer WP4331 Compressor

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Stages/Cylinders N/A 1 Stage N/A 3 Stages N/A 3 Stage and 4 Stage N/A 4 Stages N/A 3 Stages 5 Cylinders
Models N/A WP15L, WP22L, WP33L, WP45L, WP65L, WP33LB, WP65LB N/A WP151, WP271L, WP311L, WP66L, WP126L, WP206L WP81L, WP101L, WP121L N/A WP3325, WP4325 N/A WP4331, WP4341, WP4351 N/A WP3303LH
Operating Pressure Range N/A 150 to 580 psi N/A 150 to 1150 psi N/A 2000 to 6090 psi N/A 1750 to 5800 psi N/A 2900 to 5080 psi
Required Power N/A 5 to 30 hp N/A 20 to 100 hp N/A 6 to 20 hp N/A 20 to 75 hp N/A 100 to 150 hp
Flow Rate N/A 6.9 to 140 SCFM N/A 39 to 178 SCFM N/A 6 to 18 SCFM N/A 18 to 70 SCFM N/A 97 to 145 SCFM
Multi-stage oil-lubricated piston compressor N/A Standard N/A Standard N/A N/A Standard N/A
Inter-stage and final after-cooler with oil/water separators N/A Standard N/A Standard N/A N/A Standard N/A
Over-pressure saftey valves at each stage N/A Standard N/A Standard N/A N/A Standard N/A
Gas-tight over-pressure safety valves at each stage (piped exit, manifold) N/A Optional N/A Standard N/A N/A Optional N/A
Automatic oil/water drain valves N/A Standard N/A Standard N/A N/A Standard N/A
Auto-starting relief integrated with drain system N/A Standard N/A Standard N/A N/A Standard N/A
Pressure indicator at each stage N/A Optional N/A Standard N/A N/A Optional N/A
Gas over-temperature protective shutdown sensor N/A Standard N/A Standard N/A N/A Standard N/A
Oil lubrication including protection sensor N/A Optional N/A Standard N/A N/A Optional N/A
Pressure and temperature indicators and sensor-switch at all stages N/A Standard N/A Optional N/A N/A Standard N/A
Air-blast cooling fan and flywheel N/A Standard N/A Standard N/A N/A Standard N/A
Lubricating oil level alarm N/A Standard N/A Optional N/A N/A Standard N/A
Gas suction connection (flange, pipe) N/A Standard N/A Standard N/A N/A Standard N/A
Crankcase oil sump heating N/A Optional N/A Optional with Non-Explosion Proof Model only, Not available in Explosion Proof Model N/A N/A Optional N/A
Ex-proof crankcase oil sump heating N/A N/A Optional with Explosion Proof Model only, Not available in Non-Explosion Proof Model N/A N/A N/A
Flexible drive coupling N/A Standard N/A Standard N/A N/A Standard N/A
Direct drive Electric Motor N/A Standard N/A StandardStandard with Non-Explosion Proof model only, Not available with Explosion Proof Model N/A N/A Standard N/A
Direct-drive Ex-motor (ATEX) N/A Optional N/A Standard with Explosion Proof Model, Optional with Non-Explosion Proof Model only N/A N/A Optional N/A
Resilient AV mounts N/A Standard N/A Standard N/A N/A Standard N/A
Outlet flexible hose with non-return valve N/A Standard N/A Standard N/A N/A Standard N/A
Flexible oil/water drain hose N/A Standard N/A Standard N/A N/A Standard N/A
Auto Start-Stop pressure sensor control N/A Standard N/A Optional N/A N/A Standard N/A
Oil/water drain gas seprator ‘Demister’ vessel N/A Optional N/A Optional N/A N/A Optional N/A
Oil/water collection tank N/A Optional N/A Optional N/A N/A Optional N/A
Oil/water collection tank (level alarm) N/A Optional N/A Optional N/A N/A Optional N/A
Electrical Control Panel (Safe Area, Start/Stop, alarms, shutdowns) N/A Optional N/A Optional N/A N/A Optional N/A
Acoustic enclosure - internal heater, fan ventilation, gas detection N/A Optional N/A Optional N/A N/A Optional N/A
Ex-proof drive coupling (ATEX 95) N/A Optional N/A Standard with Explosion Proof Model, Optional with Non-Explosion Proof Model only N/A N/A Optional N/A
Anti-static air-blast cooling fan (ATEX 95) N/A Optional N/A Standard with Explosion Proof Model, Optional with Non-Explosion Proof Model only N/A N/A Optional N/A
Intrinsic safe relays for pressure and temperature monitoring N/A N/A Optional with Explosion Proof Model only. Not available in Non-Explosion Proof Model N/A N/A N/A
Intrinsic safe terminal box for electrical connections N/A N/A Optional with Explosion Proof Model only. Not available in Non-Explosion Proof Model N/A N/A N/A
Electrical Control panel to ATEX zone 1 and 2 N/A Optional N/A Optional with Explosion Proof Model only. Not available in Non-Explosion Proof Model N/A N/A Optional N/A
Supply gas pressure sensor control (Auto-Stop/Restart) N/A Optional N/A Optional N/A N/A Optional N/A
Supply gas isolating valve (manual, solenoid, actuator, electrical inter-lock) N/A Optional N/A Optional N/A N/A Optional N/A
Supply gas non-return valve N/A N/A Optional with Explosion Proof Model only. Not available in Non-Explosion Proof Model N/A N/A N/A
Supply gas excess flow valve N/A N/A Optional with Explosion Proof Model only. Not available in Non-Explosion Proof Model N/A N/A N/A
In-line gas suction filter N/A Optional N/A Optional N/A N/A Optional N/A
Suction gas regulation (pressure reducing valve) N/A Optional N/A Optional N/A N/A Optional N/A
Suction gas shut-off valve (solenoid, actuated) N/A Optional N/A Optional N/A N/A Optional N/A
Capacity control (re-cycling by-pass valve, discharge back to suction) N/A Optional N/A Optional N/A N/A Optional N/A
Inlet gas pulsation damper (suction 'buffer tank' inc. drain/purge valve) N/A Optional N/A Standard N/A N/A Optional N/A
Suction gas protection (safety valve, pressure gauge, high/low pressure sensor-switch) N/A Optional N/A Standard N/A N/A Optional N/A
Flexible suction gas hose N/A Optional N/A Optional N/A N/A Optional N/A
Outlet oil coalescing filtration (manual, auto drain) N/A Optional N/A Standard with Explosion Proof Model, Optional with Non-Explosion Proof Model only N/A N/A Optional N/A
Outlet oil vapour activated carbon filtration (manual drain) N/A Optional N/A Optional N/A N/A Optional N/A
Outlet purge connection N/A Optional N/A Standard with Explosion Proof Model, Optional with Non-Explosion Proof Model only N/A N/A Optional N/A
Final Pressure Maintaining Valve N/A Optional N/A Standard with Explosion Proof Model, Optional with Non-Explosion Proof Model only N/A N/A Optional N/A
Gas drying (suction, outlet HP Dryer) N/A Optional N/A Optional N/A N/A Optional N/A
Auto Stop/Start pressure sensor control N/A Optional N/A Optional N/A N/A Optional N/A
Gas recovery, or ‘blow-down’ , vessel (purge, drain, safety valve, pressure gauge) N/A N/A Standard N/A N/A N/A