ZRS 250Pumping speed 310 m³/h
ZRS 2600 3Ph 200/380 V 50 Hz
The Atlas Copco ZRS 2600 is a mechanical booster pump based on the Roots principle with a displacement of 2590 m³/h at 50 Hz (3110 m³/h at 60 Hz). Its hydrokinetic drive allows it to be started together with the backing pump – without bypass or pressure switch. Ehrler & Beck supplies it in four voltage variants.
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- Pumping speed 2,590 m³/h 50 Hz 3,110 m³/h 60 Hz
- Rated motor power 11 kW 50 Hz 11 kW 60 Hz
| Variant | Part number |
|---|---|
| 3Ph 200/380 V 50 Hz (selected) | 8153312205 |
| 3Ph 400 V 50 Hz | 8153312197 |
| 3Ph 200/380 V 60 Hz | 8153311280 |
| 3Ph 230/460 V 60 Hz | 8153311181 |
Atlas Copco ZRS 2600 – booster pump with hydrokinetic drive
The ZRS 2600 delivers 2590 m³/h at 50 Hz and 3110 m³/h at 60 Hz. It is always operated with a downstream backing pump, which overcomes the pressure difference to atmosphere, and is particularly suitable for high volume flows between 0.01 and 50 mbar. Because it works at low pressures, it is less exposed to corrosive process media than the backing pump and correspondingly reliable. Motor 11 kW, dimensions 1156 × 522 × 498 mm (L × W × H), weight 401 kg, inlet DN 160 ISO-F, outlet DN 100 ISO-F. The hydrokinetic drive is water-cooled.Hydrokinetic drive
A fluid drive couples the motor and the pump mechanism and controls the speed automatically (0 to 2900 rpm at 50 Hz). As a result, the ZRS 2600 can start at the same time as the backing pump and supports evacuation from the very beginning; the motor is protected against overload. Valves, bypass lines and pressure switches are not needed, and the backing pump can often be smaller than with boosters with a conventional drive.Applications of the range
Atlas Copco lists vacuum packaging, drying and degassing, vacuum metallurgy, vacuum distillation, thin-film coating, low-density wind tunnels, space simulation, vacuum impregnation and freeze drying.Variants of the ZRS 2600
The ZRS 2600 is available from Ehrler & Beck in four variants: 3Ph 200/380 V 50 Hz (8153312205), 3Ph 400 V 50 Hz (8153312197), 3Ph 200/380 V 60 Hz (8153311280), 3Ph 230/460 V 60 Hz (8153311181).Features of the ZRS range
- Patented hydrokinetic fluid drive between motor and pump: start together with the backing pump, pump-down times up to 50 % shorter according to Atlas Copco
- Automatic overload protection: The drive adjusts the speed itself; no pressure sensors, bypass lines or valves needed
- Oil-free pumping mechanism with proven shaft seal – no oil in the pumping chamber
- Dynamically balanced rotors and precision-ground gears for smooth, low-vibration running
- Robust and corrosion-resistant, low maintenance effort
- Motors to EN 60034, energy-efficient
| Pumping speed 50Hz | 2,590 |
|---|---|
| Pumping speed 60Hz | 3,110 |
| Rated motor power 50Hz | 11 |
| Rated motor power 60Hz | 11 |
| Weight | 401 |
| Length | 115.6 |
| Width | 52.2 |
| Height | 49.8 |
| Inlet connection flange | DN 160 ISO-F |
| Outlet connection flange | DN 100 ISO-F |
| Noise level | 75 dB(A) |
| Cooling method | Water cooling |
| Oil type | Mineral oil VG 100 |
Additional technical data
| Technical data | Value |
|---|---|
| Design | Roots vacuum pump (mechanical booster pump) with hydrokinetic drive |
| Pumping speed (displacement) 50 Hz / 60 Hz | 2590 / 3110 m³/h |
| Max. pressure difference 50 Hz / 60 Hz | 80 / 67 mbar |
| Preferred working range | 0.01 to 50 mbar |
| Speed 50 Hz / 60 Hz | 0 to 2900 / 0 to 3500 rpm (determined by the hydrokinetic drive) |
| Rated motor power | 11 kW |
| Mains connection | 3Ph 200/380 V 50 Hz, 3Ph 400 V 50 Hz, 3Ph 200/380 V 60 Hz, 3Ph 230/460 V 60 Hz |
| Sound pressure level (1 m, ultimate pressure) | 75 dB(A) |
| Cooling | Air, hydrokinetic drive water-cooled |
| Cooling water | 6 l/min, G 3/8, 2 to 6 bar(e), 5 to 35 °C |
| Oil | Mineral oil (100 cSt) |
| Oil filling | 3.5 l (gear cover), 6.5 l (drive/gearbox), 0.45 l (shaft seal) |
| Ambient temperature | 5 to 40 °C |
| Dimensions L × W × H | 1156 × 522 × 498 mm |
| Weight | 401 kg |
| Inlet / outlet | DN 160 ISO-F / DN 100 ISO-F |
| Product name | Part number |
|---|---|
| Booster adapter DWS 200/300 to ZRS 1200/2600 | 3002615100 |
| Booster adapter DWS 500 to ZRS 1200/2600/4200 | 3002615102 |
| Booster adapter DWS 450 VSD+ to ZRS 2600/4200 | M58810150 |
| Booster adapter DWS 750 VSD+ to ZRS 2600/4200 | M58810148 |



