ZRS 4200 3Ph 200/380 V 50 Hz

Atlas Copco ZRS 4200 – booster pump with hydrokinetic drive

The ZRS 4200 delivers 4140 m³/h at 50 Hz and 4985 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 1336 × 522 × 498 mm (L × W × H), weight 481 kg, inlet DN 250 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 4200 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 4200

The ZRS 4200 is available from Ehrler & Beck in four variants: 3Ph 200/380 V 50 Hz (8153312221), 3Ph 400 V 50 Hz (8153312213), 3Ph 200/380 V 60 Hz (8153311298), 3Ph 230/460 V 60 Hz (8153311199).

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	4,140
Pumping speed 60Hz	4,985
Rated motor power 50Hz	11
Rated motor power 60Hz	11
Weight	481
Length	133.6
Width	52.2
Height	49.8
Inlet connection flange	DN 250 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