Grundfos CM 15-1 — material number 97568555 — is a 1-stage Grundfos CM vertical multistage centrifugal pump with a 3.4 HP, 3-phase, 208-230/440-480 V NEMA TEFC motor and a HQQE shaft seal.
This 1-stage configuration produces a moderate 75 ft of head at the BEP (90 GPM, ~32 psi) and is the most common choice for low-rise commercial boosting and short pipe runs where modest pressure is needed.
Specifications
| Model | CM 15-1 |
| Stages | 1 |
| Flow at BEP | 90 GPM |
| Head at BEP | 75 ft (~32 psi) |
| Shutoff head (approx.) | 90 ft |
| Motor | 3.4 HP, 3-phase, 208-230/440-480 V, NEMA TEFC |
| Shaft seal | HQQE (SiC/Carbon EPDM) |
| Materials | Cast iron pump body; 304 SS internals; AQQE SiC/SiC seal |
| Material number (P/N) | 97568555 |
| Shipping weight | 73 lbs |
| Frequency | 60 Hz |
| Brand | Grundfos |
| Country of origin | Denmark / USA (varies by date code) |
Dimensions
| Approximate dimensions (horizontal pump) | |
|---|---|
| Overall length (pump + motor) | 24.8 in |
| Pump body length (1 stages) | 12.8 in |
| Motor frame | See spec table above |
| Mounting | Horizontal foot-mounted on foot brackets |
| Motor orientation | Horizontal NEMA close-coupled motor |
Note: Dimensions are approximate and based on the Grundfos CM 15 data booklet. For certified installation drawings, request a quote and the engineering team will provide the official dimensional drawing for material number specified.
Pipe Connections
The Grundfos CM 15 series is available with multiple connection types to match your installation requirements. Connection sizes for this series:
| Connection options | |
|---|---|
| Standard pipe connection (oval flange) | 2 inch NPT (oval) |
| ANSI flange size | 2 inch |
| ANSI flange class | 150 lb (optional) |
| Inlet / outlet orientation | Horizontal inlet (axial) and discharge (radial) |
Companion connections (gaskets, bolts, ANSI flanges or Victaulic couplings) are ordered separately. Contact ForeverPure for the matched connection kit part numbers for your specific configuration.
Available Configurations / Material Numbers
The CM 15-1 ships in several phase, voltage, and seal combinations. Material numbers for the most common variants:
| Phase / Voltage | Seal | Motor HP | Weight | Material Number |
|---|---|---|---|---|
| 3-phase, 208-230/440-480 | HQQE | 3.4 HP | 73 lbs | 97568555 |
| 3-phase, 208-230/440-480 | HQQV | 3.4 HP | 73 lbs | 97568558 |
| 3-phase, 208-230/440-480 | HQQE | 3.4 HP | 65 lbs | 96946022 |
| 3-phase, 208-230/440-480 | HQQV | 3.4 HP | 65 lbs | 96946030 |
| 3-phase, 208-230/440-480 | HQQE | 3.4 HP | 65 lbs | 96943299 |
| 3-phase, 208-230/440-480 | HQQV | 3.4 HP | 65 lbs | 96943300 |
Typical Applications
- Commercial pressure boosting
- Building water supply
- Light commercial process water
- RO membrane pre-feed
Datasheet & Documentation
- Grundfos CR/CRI/CRN North America Data Booklet (PDF)
- CR/CRI/CRN/CRT Installation & Operating Instructions (PDF)
- CR Service Manual (PDF)
Frequently Asked Questions
- What is the maximum head/flow of the Grundfos CM 15-1?
- The CM 15-1 produces approximately 75 ft of head at 90 GPM (best efficiency point), with a shutoff head of about 90 ft. That corresponds to roughly 32 psi at the BEP.
- What is the Grundfos CM 15-1 material number / part number?
- The primary material number for this configuration (3-phase 208-230/440-480, HQQE seal) is 97568555. Other voltage and seal options are listed in the variants table on this page.
- Which motor does the Grundfos CM 15-1 use?
- This SKU ships with a 3.4 HP, 3-phase, 208-230/440-480 V NEMA TEFC motor. Other motor configurations and IE3/IE5 upgrades are available on request.
- Can the Grundfos CM 15-1 be paired with a variable frequency drive (VFD)?
- Yes. Order the matching E-Pump variant with integrated MLE permanent-magnet motor, or pair this fixed-speed pump with a Grundfos CUE external VFD.
- What is the typical lead time for the Grundfos CM 15-1?
- Many configurations of the CM 15 series ship from stock through Grundfos USA. Contact ForeverPure Place for the current lead time on this specific material number (97568555).
Related Products
- Browse all Grundfos CM 15 stage configurations
- All CR, CRI, CRN vertical multistage pumps
- Complete Grundfos catalog
