The Grundfos CM 15 Horizontal Multistage Pump (CM 15) is part of the Grundfos CM range, engineered in Cast iron, 304 SS or 316 SS (material codes A / I / G). Delivers up to 110 GPM at heads up to 250 ft, with motor sizes from 3-10 HP. Drive: Fixed-speed NEMA TEFC motor. Used in Pressure boosting and similar applications.
Specifications
| Max flow | 110 GPM (60 Hz) |
| Max head | 250 ft |
| Max working pressure | 145 psi |
| Motor range | 3-10 HP |
| Stages | up to 3 |
| Frequency | 60 Hz |
| Voltage | 115/230 V single-phase or 208-230/440-480 V three-phase (model dependent) |
| Liquid temperature | 5 - 250 °F (-20 - 250 °F with HQQV seal) |
| Construction | Cast iron, 304 SS or 316 SS (material codes A / I / G) |
| Motor | Fixed-speed NEMA TEFC motor |
| Brand | Grundfos |
| Model | CM 15 |
| Country of Origin | Denmark / USA (varies by model) |
Materials of Construction
Cast iron volute (A); all 304 SS (I); all 316 SS (G). Silicon-carbide/silicon-carbide AQQE (EPDM) or AQQV (FKM) shaft seal
Typical Applications
- Pressure boosting
- water supply
- light commercial booster sets
- washdown
- RO pre-feed
- irrigation
- industrial process
Datasheets & Manuals
Industries & Applications
The Grundfos CM 15 is widely deployed across these industries and use cases:
- Domestic and light-commercial pressure boosting
- Small irrigation systems
- Industrial washdown
- Light process water transfer
- Ro membrane pre-feed
- Rainwater harvesting systems
Related & Compare
Stage Configurations - Choose Your Model
The Grundfos CM 15 series is available in multiple stage counts. More stages = higher pressure (head) at roughly the same flow rate (~85 GPM at the best efficiency point). Pick the configuration that matches your required discharge pressure:
| Model | Stages | Head @ BEP | Motor HP | Phase | Material Number |
|---|---|---|---|---|---|
| CM 15-1 | 1 | ~85 ft (36 psi) | 3.4 HP | 3-phase | 97568555 |
Click any model to see full specifications, all available phase/voltage/seal variants, and request a quote. If you don't see your exact configuration, contact us — we can quote any of the 14,000+ Grundfos material numbers, not just those listed here.
Frequently Asked Questions
- What is the maximum flow rate of the Grundfos CM 15?
- The CM 15 delivers up to 110 GPM at 60 Hz.
- What is the maximum head/pressure of the CM 15?
- Maximum head is 250 ft (about 145 psi). Actual operating point depends on stage count and motor size.
- What materials of construction are available for the CM 15?
- Cast iron volute (A); all 304 SS (I); all 316 SS (G). Silicon-carbide/silicon-carbide AQQE (EPDM) or AQQV (FKM) shaft seal
- What applications is the Grundfos CM 15 suitable for?
- Pressure boosting, water supply, light commercial booster sets, washdown, RO pre-feed, irrigation, industrial process
- Can this pump be supplied with a variable frequency drive (VFD)?
- Yes - either order the matching E-Pump variant with integrated MLE motor (CRE / CRIE / CRNE / CME), or pair the fixed-speed pump with a Grundfos CUE external VFD.
- What shaft seal options are available?
- Standard HQQE (carbon/SiC with EPDM) for cold/warm water and HQQV (carbon/SiC with FKM) for hot water and aggressive media. Cartridge double seals available for hazardous duty.
- Is the Grundfos CM 15 available with stock or quick-ship lead times?
- Many configurations ship from stock through Grundfos USA. Contact ForeverPure Place for current lead time on your specific configuration.
- How do I get a quote for the Grundfos CM 15?
- Use the Request Quote button on this page, call our sales team, or email sales@foreverpureplace.com with model, voltage, materials, seal type and quantity.
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.
