Grundfos CRN 10-6 — material number 99917399 — is a 6-stage Grundfos CRN vertical multistage centrifugal pump with a 5 HP, 3-phase, 208-230/460 V NEMA TEFC motor and a HQQE shaft seal.
The 6-stage build delivers 420 ft of head (55 GPM, ~181 psi) at the BEP and a 504 ft shutoff — the typical pick for mid-rise pressure boosting, RO pretreatment, and cooling-tower makeup.
Specifications
| Model | CRN 10-6 |
| Stages | 6 |
| Flow at BEP | 55 GPM |
| Head at BEP | 420 ft (~181 psi) |
| Shutoff head (approx.) | 504 ft |
| Motor | 5 HP, 3-phase, 208-230/460 V, NEMA TEFC on 182TC frame |
| Shaft seal | HQQE (SiC/Carbon EPDM) |
| Materials | All AISI 316L stainless steel wetted parts |
| Material number (P/N) | 99917399 |
| Shipping weight | 174 lbs |
| Frequency | 60 Hz |
| Brand | Grundfos |
| Country of origin | Denmark / USA (varies by date code) |
Dimensions
| Approximate dimensions (vertical pump) | |
|---|---|
| Overall height (pump + motor) | 45.3 in |
| Pump body height (6 stages) | 33.3 in |
| Base height (stage 0) | 16.5 in |
| Added height per stage | 2.8 in |
| Motor frame | See spec table above |
| Mounting | Vertical foot-mounted |
| Motor orientation | Vertical with NEMA motor stool above pump head |
Note: Dimensions are approximate and based on the Grundfos CRN 10 data booklet. Exact dimensions vary slightly by motor frame and base style. For certified installation drawings of this specific material number, request a quote and we'll provide the official Grundfos dimensional drawing.
Pipe Connections
The Grundfos CRN 10 series is available with multiple connection types to match your installation requirements. Connection sizes for this series:
| Connection options | |
|---|---|
| Victaulic / PJE coupling | 2 inch PJE coupling (Victaulic-type) |
| ANSI flange size | 2 inch |
| ANSI flange class | 300 lb |
| Inlet / outlet orientation | Suction and discharge on the same horizontal centerline (in-line) |
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 CRN 10-6 ships in several phase, voltage, and seal combinations. Material numbers for the most common variants:
| Phase / Voltage | Seal | Motor HP | Weight | Material Number |
|---|---|---|---|---|
| 1-phase, 208-230 | HQQE | 5 HP | 205 lbs | 99917348 |
| 3-phase, 208-230/460 | HQQE | 5 HP | 174 lbs | 99917399 |
| 1-phase, 208-230 | HQQV | 5 HP | 205 lbs | 99917359 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 174 lbs | 99917413 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 176 lbs | 99917400 |
| 1-phase, 208-230 | HQQV | 5 HP | 207 lbs | 99917360 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 176 lbs | 99917414 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 200 lbs | 99917401 |
| 1-phase, 208-230 | HQQV | 5 HP | 227 lbs | 99917361 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 200 lbs | 99917415 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 202 lbs | 99917402 |
| 1-phase, 208-230 | HQQV | 5 HP | 229 lbs | 99917362 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 202 lbs | 99917416 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 204 lbs | 99917403 |
| 1-phase, 208-230 | HQQV | 5 HP | 231 lbs | 99917363 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 204 lbs | 99917417 |
| 1-phase, 208-230 | HQQE | 5 HP | 194 lbs | 99917326 |
| 3-phase, 208-230/460 | HQQE | 5 HP | 163 lbs | 99917371 |
| 1-phase, 208-230 | HQQV | 5 HP | 194 lbs | 99917337 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 163 lbs | 99917385 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 165 lbs | 99917372 |
| 1-phase, 208-230 | HQQV | 5 HP | 196 lbs | 99917338 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 165 lbs | 99917386 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 190 lbs | 99917373 |
| 1-phase, 208-230 | HQQV | 5 HP | 216 lbs | 99917339 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 190 lbs | 99917387 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 192 lbs | 99917374 |
| 1-phase, 208-230 | HQQV | 5 HP | 218 lbs | 99917340 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 192 lbs | 99917388 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 194 lbs | 99917375 |
| 1-phase, 208-230 | HQQV | 5 HP | 220 lbs | 99917341 |
| 3-phase, 208-230/460 | HQQV | 5 HP | 194 lbs | 99917389 |
Typical Applications
- Seawater reverse osmosis (SWRO) high-pressure feed
- Brackish water RO and booster
- Ultrapure water (UPW) for semiconductor fabs
- Pharmaceutical purified water (USP) loops
- Chloride-bearing chemical transfer
- Food-grade hot CIP
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 CRN 10-6?
- The CRN 10-6 produces approximately 420 ft of head at 55 GPM (best efficiency point), with a shutoff head of about 504 ft. That corresponds to roughly 181 psi at the BEP.
- What is the Grundfos CRN 10-6 material number / part number?
- The primary material number for this configuration (3-phase 208-230/460, HQQE seal) is 99917399. Other voltage and seal options are listed in the variants table on this page.
- Which motor does the Grundfos CRN 10-6 use?
- This SKU ships with a 5 HP, 3-phase, 208-230/460 V NEMA TEFC motor on a 182TC frame. Other motor configurations and IE3/IE5 upgrades are available on request.
- Can the Grundfos CRN 10-6 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 CRN 10-6?
- Many configurations of the CRN 10 series ship from stock through Grundfos USA. Contact ForeverPure Place for the current lead time on this specific material number (99917399).
Related Products
- Browse all Grundfos CRN 10 stage configurations
- All CR, CRI, CRN vertical multistage pumps
- Complete Grundfos catalog
