The Grundfos BMS 18-22 HS-B-C-P-A-A (product number 93077837) is a 22-stage high-pressure booster module built for reverse-osmosis and filtration duty, rated 141 US gpm at 2051 ft. The pump element runs inside a pressure sleeve, so the full system pressure is contained by the sleeve rather than the pump housing.
Performance & Hydraulic Data
| Rated flow | 141 US gpm |
| Rated head | 2051 ft |
| Stages | 22 |
| Rated pump speed | 5500 rpm |
| Maximum inlet pressure | 942.75 psi |
| Maximum outlet pressure | 1199.46 psi |
| Curve tolerance | ISO9906:2012 3B |
Performance Curve
Official Grundfos curve — 60 Hz, water at 68 °F.
Materials of Construction
| Impellers | Stainless steel — EN 1.4539 — AISI 904L |
| Pressure sleeve | Super Duplex/Duplex steel — EN 1.4462/1.4410 — AISI 318 LN |
| Motor | Cast iron |
Motor & Electrical Data
| Voltage | 400 V |
| Phase | 3 |
| Frequency | 60 Hz |
| Rated current | 130 A |
Connections & Operating Limits
| Pipe connection | 3"/D88,9 |
| Maximum liquid temperature | 104 °F |
Approvals, Weights & Identification
| Grundfos product number | 93077837 |
| EAN | 5715123516790 |
| Net weight | 972 lb |
| Gross (shipping) weight | 1190 lb |
| Country of origin | Denmark |
| HS / customs tariff code | 8413.70.2040 |
Typical Applications
Seawater and brackish-water reverse osmosis • membrane filtration • high-pressure boosting • energy-recovery circuits • industrial process water.
Need help? Contact ForeverPure Place for pricing, lead time, accessories, or help selecting the correct model for your application.
