The Grundfos CM 1-8 (product number 99155401, type key A-S-G-V-AQQV E-A-A-N) is a horizontal multistage centrifugal pump rated 8.98 US gpm at 238.1 ft, driven by a motor. Certified to WRAS,ACS,NSF61,UBA for drinking-water service.
Performance & Hydraulic Data
| Rated flow | 8.98 US gpm |
| Rated head | 238.1 ft |
| Maximum operating pressure | 232.06 psi |
| Max pressure at temperature | 232 / 194 psi / °F |
| Pump orientation | Horizontal |
| Curve tolerance | ISO9906:2012 3B |
Performance Curve
Official Grundfos curve — 60 Hz, water at 68 °F. Upper chart: head (H) and efficiency (η) against flow (Q). Lower chart: power draw (P1 input / P2 shaft) and NPSH required.
Materials of Construction
| Impellers & chambers | Stainless steel — EN 1.4401 — AISI 316 |
| Shaft seal | AQQV — FKM (Viton) elastomers |
| Elastomers | FKM (Viton) |
Motor & Electrical Data
| Frequency | 60 Hz |
| Motor standard / make | NEMA |
| Enclosure class | IP55 |
| Frequency converter | None |
Connections & Operating Limits
| Connection type | NPT(F) |
| Suction port | 1 inch |
| Discharge port | 1 inch |
| Liquid temperature range | -4 °F to 194 °F |
Approvals, Weights & Identification
| Drinking-water approval | WRAS,ACS,NSF61,UBA |
| Electrical approvals | CE,CULUS,EAC,CURUS,UKCA |
| Grundfos product number | 99155401 |
| EAN | 5712607775414 |
| Net weight | 39.4 lb (17.9 kg) |
| Gross (shipping) weight | 58.3 lb (26.4 kg) |
| Country of origin | MX |
| HS / customs tariff code | 8413.70.2040 |
Recommended Spare Parts
| Part | Description | Grundfos P/N |
|---|
| Shaft seal kit | AQQV cartridge shaft seal, 12 mm — the primary wear item | Contact us |
| Wear parts kit | CM 1 wear parts set, silicon carbide | Contact us |
| Gasket kit | FKM (Viton) gasket set, CR/I/N 1s/1/3/5 | 96455091 |
| Coupling kit / guard | Frame-dependent — send your pump nameplate and we will confirm | Contact us |
Genuine Grundfos service kits. All specifications above are taken directly from official Grundfos product data.
Typical Applications
Water supply and pressure boosting • reverse osmosis and membrane filtration feed • water treatment and transfer • boiler feed and condensate • industrial process and washing • HVAC and cooling circuits • irrigation.
Need help? Contact ForeverPure Place for pricing, lead time, spare-part confirmation, or help selecting the correct number of stages and materials for your duty point.
Accessories for This Pump
Commonly specified alongside fixed-speed Grundfos pumps. Send us your pump nameplate and we will confirm the correct part for your exact build and voltage before you order.
CUE Variable Frequency Drive
