Grundfos CRN 1-9 — material number 99916160 — is a 9-stage Grundfos CRN vertical multistage centrifugal pump with a 1 HP, 3-phase, 208-230/460 V NEMA TEFC motor and a HQQE shaft seal.
With 9 stages this build produces a high 405 ft of head (8 GPM, ~175 psi). It's the standard size for high-pressure RO feed, taller commercial buildings, and applications requiring 200+ psi discharge.
Specifications
| Model | CRN 1-9 |
| Stages | 9 |
| Flow at BEP | 8 GPM |
| Head at BEP | 405 ft (~175 psi) |
| Shutoff head (approx.) | 486 ft |
| Motor | 1 HP, 3-phase, 208-230/460 V, NEMA TEFC on 56C frame |
| Shaft seal | HQQE (SiC/Carbon EPDM) |
| Materials | All AISI 316L stainless steel wetted parts |
| Material number (P/N) | 99916160 |
| Shipping weight | 59 lbs |
| Frequency | 60 Hz |
| Brand | Grundfos |
| Country of origin | Denmark / USA (varies by date code) |
Dimensions
| Approximate dimensions (vertical pump) | |
|---|---|
| Overall height (pump + motor) | 40.9 in |
| Pump body height (9 stages) | 28.9 in |
| Base height (stage 0) | 14.5 in |
| Added height per stage | 1.6 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 1 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 1 series is available with multiple connection types to match your installation requirements. Connection sizes for this series:
| Connection options | |
|---|---|
| Victaulic / PJE coupling | 1-1/4 inch PJE coupling (Victaulic-type) |
| ANSI flange size | 1-1/4 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 1-9 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, 115/230 | HQQE | 1 HP | 80 lbs | 99916082 |
| 3-phase, 208-230/460 | HQQE | 1 HP | 59 lbs | 99916160 |
| 1-phase, 115/230 | HQQV | 1 HP | 80 lbs | 99916101 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 59 lbs | 99916181 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 60 lbs | 99916161 |
| 1-phase, 115/230 | HQQV | 1 HP | 80 lbs | 99916102 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 60 lbs | 99916182 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 61 lbs | 99916162 |
| 1-phase, 115/208-230 | HQQV | 1 HP | 87 lbs | 99916103 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 61 lbs | 99916183 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 62 lbs | 99916163 |
| 1-phase, 115/208-230 | HQQV | 1 HP | 89 lbs | 99916104 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 62 lbs | 99916184 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 63 lbs | 99916164 |
| 1-phase, 115/208-230 | HQQV | 1 HP | 90 lbs | 99916105 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 63 lbs | 99916185 |
| 1-phase, 115/230 | HQQE | 1 HP | 89 lbs | 99916120 |
| 3-phase, 208-230/460 | HQQE | 1 HP | 68 lbs | 99916200 |
| 1-phase, 115/230 | HQQV | 1 HP | 89 lbs | 99916140 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 68 lbs | 99916219 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 69 lbs | 99916201 |
| 1-phase, 115/230 | HQQV | 1 HP | 90 lbs | 99916141 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 69 lbs | 99916220 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 70 lbs | 99916202 |
| 1-phase, 115/208-230 | HQQV | 1 HP | 97 lbs | 99916142 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 70 lbs | 99916221 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 71 lbs | 99916203 |
| 1-phase, 115/208-230 | HQQV | 1 HP | 98 lbs | 99916144 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 71 lbs | 99916222 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 72 lbs | 99916204 |
| 1-phase, 115/208-230 | HQQV | 1 HP | 99 lbs | 99916145 |
| 3-phase, 208-230/460 | HQQV | 1 HP | 72 lbs | 99916223 |
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 1-9?
- The CRN 1-9 produces approximately 405 ft of head at 8 GPM (best efficiency point), with a shutoff head of about 486 ft. That corresponds to roughly 175 psi at the BEP.
- What is the Grundfos CRN 1-9 material number / part number?
- The primary material number for this configuration (3-phase 208-230/460, HQQE seal) is 99916160. Other voltage and seal options are listed in the variants table on this page.
- Which motor does the Grundfos CRN 1-9 use?
- This SKU ships with a 1 HP, 3-phase, 208-230/460 V NEMA TEFC motor on a 56C frame. Other motor configurations and IE3/IE5 upgrades are available on request.
- Can the Grundfos CRN 1-9 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 1-9?
- Many configurations of the CRN 1 series ship from stock through Grundfos USA. Contact ForeverPure Place for the current lead time on this specific material number (99916160).
Related Products
- Browse all Grundfos CRN 1 stage configurations
- All CR, CRI, CRN vertical multistage pumps
- Complete Grundfos catalog
