The Grundfos CM 3 Horizontal Multistage Pump (CM 3) is part of the Grundfos CM range, engineered in Cast iron, 304 SS or 316 SS (material codes A / I / G). Delivers up to 28 GPM at heads up to 160 ft, with motor sizes from 0.5-2 HP. Drive: Fixed-speed NEMA TEFC motor. Used in Pressure boosting and similar applications.
Specifications
| Max flow | 28 GPM (60 Hz) |
| Max head | 160 ft |
| Max working pressure | 145 psi |
| Motor range | 0.5-2 HP |
| Stages | up to 5 |
| 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 3 |
| 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
Frequently Asked Questions
- What is the maximum flow rate of the Grundfos CM 3?
- The CM 3 delivers up to 28 GPM at 60 Hz.
- What is the maximum head/pressure of the CM 3?
- Maximum head is 160 ft (about 145 psi). Actual operating point depends on stage count and motor size.
- What materials of construction are available for the CM 3?
- 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 3 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 3 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 3?
- 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.
Need help selecting the right CM 3 configuration, NEMA motor, materials or seal type? Contact our pump engineering team for sizing assistance, pricing and lead times.
