The Grundfos CM 5-8 (product number 97568440) is a CM stainless steel submersible well pump rated 24.8 US gpm at 294.8 ft, supplied complete with a three-phase Grundfos submersible motor.
Performance Curve
Official Grundfos curve — 60 Hz, water at 68 °F. Head (H) and efficiency (η) against flow (Q); lower chart shows power and NPSH required.
Performance & Hydraulic Data
| Rated flow | 24.8 US gpm |
| Rated head | 294.8 ft |
| Pump speed (data basis) | 3480 rpm |
| Pump type | CM |
| Maximum operating pressure | 232.06 psi |
| Curve tolerance | ISO9906:2012 3B |
Materials of Construction
| Impellers | Stainless steel — EN 1.4401 — AISI 316 |
Installation & Connections
| Discharge connection | NPT(F) |
| Liquid temperature range | -4 °F to 194 °F |
Motor & Electrical Data
| Voltage & phase | 220-230YY/440-480Y V, three-phase |
| Frequency | 60 Hz |
| Rated speed | 3520-3530 rpm |
| Rated current | 14.8-14.2/7.2-7.0 A |
| Service factor | 1.00 |
| Enclosure class | IP55 |
| Insulation class | F |
Approvals, Weights & Identification
| Approvals | CE,CULUS,EAC,CURUS,UKCA |
| Drinking water | WRAS,ACS,NSF61,UBA |
| Grundfos product number | 97568440 |
| EAN | 5700318670012 |
| Net weight (pump + motor) | 72.5 lb |
| Gross (shipping) weight | 101.4 lb |
| Country of origin | MX |
| HS / customs tariff code | 8413.70.2040 |
Typical Applications
Well and borehole water supply • groundwater abstraction • irrigation • pressure boosting • livestock and rural water • industrial process water.
Need help? Contact ForeverPure Place for pricing, lead time, accessories, or help selecting the correct model for your application.
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
External VFD that converts this fixed-speed pump to constant-pressure or variable-flow control.- RPS Pressure Sensor
Discharge pressure feedback for constant-pressure booster control.
