Vacuum pump GAST RAA Series Vacuum Pumps brand Gast Manufacturing in the United States. A crank type pump piston alloy diaphragm without oil lubrication (Oilless Rocking Piston Unit) worked silence. Requires less maintenance horsepower 1/4 HP speed not less than 1575 cycles / minute (rpm) at 50 Cycle and more than 1275 cycles / minute (rpm) at 60 Cycle is available for all eight models. RAA-P203-EB, RAA-P203-ED, RAA-P203-GB, RAA-P203-GD, RAA-V210-EB, RAA-V211-EB, RAA-V210-ED and the RAA-V211-ED.
Performance at 60Hz unless otherwise noted
| Version / Model | Maximum Pressure | Maximum Vacuum | Open Flow |
| (PSI) | (IN. HG) | (CFM) | |
| PSC 4 Pole | 100 | 1.55 | |
| PSC 2 Pole | 100 | – | 2.4 |
| PSC 4 Pole (Single Stage) | – | 27.5 | 2.7 |
| PSC 4 Pole (Two Stage) | – | 29 | 1.5 |
Note: “P” models are pressure; “V” models are vacuum;
| Model | Motor | Type | Stages Vacuum Models | RPM | HP | kW | Net Wt. | ||
| 60 Hz. | 50 Hz. | lbs. | kg | ||||||
| RAA-P203-EB | 115/110-60/50-1 | PSC (4 Pole) | – | 1575 | 1275 | 4-Jan | 0,19 | 19 | 8,6 |
| RAA-P203-ED | 230/220-60/50-1 | PSC (4 Pole) | – | 1575 | 1275 | 4-Jan | 0,19 | 19 | 8,6 |
| RAA-P203-GB | 115/110-60-50-1 | PSC (2 Pole) | – | 3000 | 2500 | 4-Jan | 0,19 | 19 | 8,6 |
| RAA-P203-GD | 230/220-60/50-1 | PSC (2 Pole) | – | 3000 | 2500 | 4-Jan | 0,19 | 19 | 8,6 |
| RAA-V210-EB | 115/110-60/50-1 | PSC (4 Pole) | one | 1575 | 1275 | 4-Jan | 0,19 | 19 | 8,6 |
| RAA-V211-EB | 115/110-60/50-1 | PSC (4 Pole) | two | 1575 | 1275 | 4-Jan | 0,19 | 19 | 8,6 |
| RAA-V210-ED | 230/220-60/50-1 | PSC (4 Pole) | one | 1575 | 1275 | 4-Jan | 0,19 | 19 | 8,6 |
| RAA-V211-ED | 230/220-60/50-1 | PSC (4 Pole) | two | 1575 | 1275 | 4-Jan | 0,19 | 19 | 8,6 |
