Alfa Laval MR Series Centrifugal Liquid-Ring Pump

The MR liquid-ring pump is specially designed for pumping liquids containing air or gas. This versatile 3A compliant pump can be used in the food, pharmaceutical, chemical and similar industries. You’ll find the pump is mainly used for CIP return applications.

Standard design
All product wetted parts including the pump casing, casing cover and impeller are build with AISI 316L stainless steel.

Shaft seal
The mechanical single seals have stationary seal rings of stainless steel AISI 329 and rotating seal rings of carbon.

Technical data

Materials

Surface finish: . . . . . . . . . . . . . . . . Ra 32 µin
Product wetted steel parts: . . . . . . . . Stainless steel AISI 316L and AISI 329L
Other stainless steel parts: . . . . . . . . Stainless steel
Adaptor: . . . . . . . . . . . . . . . . . . . . Mild steel grade
Product wetted seals: . . . . . . . . . . . EPDM (acc. to FDA)

Motor

Standard C-faced, foot mounted motor according to NEMA standard. 1750 RPM. Class F.

Voltage and frequency: 3~, 60 Hz, 230/460V.

Motor sizes

166 60 Hz: 3 Hp – 1750 RPM
185 60Hz: 7.5 Hp – 1750 RPM
200 60Hz: 15 Hp – 1750 RPM

Operating data

Pressure: Max. inlet pressure: . . . . . . . . . . . . . 60 psi (4 bar).

Temperature: Temperature range . . . . . . . . . . . . . 14° F to 284° F (EPDM).

Dimensions

Pump Specific Measures

Motor Specific Measures

*Possible to reduce dimension F by min. XX mm for all pump models. For smaller models it will be possible to reduce dimension F even further.

Motor Overview

Dimensional data are based on 4 pole, Sterling motors.

Connections

* Other dimensions available on request.