This product is no longer offered by this manufacturer.
However, spare parts and service materials may still be available. Contact CSI for help with repairs, maintenance, or replacement.
Alfa Laval MR Series Liquid Ring Pumps
Central States Industrial (CSI) offers the MR Liquid Ring pump from Alfa Laval. The unique design of the MR Liquid Ring makes it ideal for pumping liquids that contain air or gas. This pump is most commonly used as a clean-in-place (CIP) return pump.
The MR Liquid Ring pump is 3-A compliant, and features an "external" mechanical seal for maximum hygiene. One seal can fit up to three models, reducing the need for spare parts.
Models
- MR-166
- MR-185S
- MR-200S
Alfa Laval is a leading global supplier of products and solutions within the key technology areas of heat transfer, separation, and fluid handling.
Applications
The MR liquid-ring pump is especially designed for pumping liquids which contain air or gas. This versatile 3-A compliant pump can be used in the food, pharmaceutical, chemical, and similar industries. The main use of the MR liquid-ring pump is in CIP return applications.
Standard Design
All product wetted parts—including the pump casing, casing cover, and impeller—are built with 316L stainless steel. The cap nuts, legs, and leg brackets are constructed with 304 stainless steel. Other design features include EPDM rubber elastomers and a cast iron adaptor coated in zinc for improved corrosion resistance. The motor is a standard C-faced, foot mounted motor according to NEMA standard (1750 rpm, Class F).
Shaft Seals
The mechanical single seals have AISI 329 stainless steel stationary seal rings and carbon rotating seal rings.
Materials
| Surface Finish | 32 Ra |
| Product Wetted Steel Parts | 316L |
| Other Stainless Steel Parts | 304 |
| Adaptor | Mild steel |
| Product Wetted Seals | EPDM (acc. to FDA) |
| Max Inlet Pressure | 60 psi |
| Temperature Range | 14°F – 284°F (EPDM) |
| Voltage and Frequency | 3~, 60 Hz, 230/460V |
Motor Sizes
| 166 | 60 Hz | 3 Hp - 1750 rpm |
| 185 | 60 Hz | 7.5 Hp – 1750 rpm |
| 200 | 60 Hz | 15 Hp – 1750 rpm |
Product Resources
See all resources by Alfa LavalBlog Posts
- Parts List
Spare Parts
- MR 166 Seal Kits
-
Seal Type EPDM NBR FPM Single
9911921946 9911921947 9911921948 - MR 185, 200 Seal Kits
-
Seal Type EPDM NBR FPM Single (C/SS) 9611921949 9611921950 9611921951 Single (SIC/SIC) 9611921952 9611921953 9611921954
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