The Grundfos CRNE 3-15 (product number 99340851, type key N-FGJ-A-E-HQQE) is a 15-stage vertical multistage centrifugal pump rated 16 US gpm at 358.5 ft, driven by a 3 HP motor. Certified to NSF/ANSI 61 for drinking-water service.
| Rated flow | 16 US gpm |
| Rated head | 358.5 ft |
| Maximum head | 477.4 ft |
| Stages / impellers | 15 / 15 |
| Reduced-diameter impellers | 0 |
| Rated pump speed | 3526 rpm |
| Maximum operating pressure | 362.59 psi |
| Max pressure at temperature | 363 / 250 psi / °F |
| Pump orientation | Vertical |
| Low NPSH version | No |
| Curve tolerance | ISO9906:2012 3B |
Official Grundfos curve — 60 Hz, water at 68 °F. Upper chart: head (H) and efficiency (η) against flow (Q). Lower chart: power draw (P1 input / P2 shaft) and NPSH required.
| Pump base | Stainless steel — EN 1.4408 — AISI 316 |
| Impellers & chambers | Stainless steel — EN 1.4401 — AISI 316 |
| Shaft seal | HQQE — EPDM elastomers |
| Shaft seal arrangement | Single |
| Bearing | SIC |
| Elastomers | EPDM |
| Rated power (P2) | 3 HP |
| Voltage | 440-480 V |
| Phase | Three-phase |
| Frequency | 60 Hz |
| Rated speed | 360-4000 rpm |
| Rated current | 3.8 A |
| Service factor | 1.15 |
| Power factor (cos φ) | 0.89 |
| Motor standard / make | NEMA / 90D |
| Enclosure class | IP55 |
| Insulation class | F |
| Built-in motor protection | ELEC |
| Motor flange | 182TC |
| Grundfos motor number | 98362284 |
| Frequency converter | Built-in |
| Connection type | DIN / ANSI / JIS |
| Pressure rating | PN 25 |
| Suction port | 1 1/4 inch |
| Discharge port | 1 1/4 inch |
| Maximum ambient temperature | 122 °F |
| Liquid temperature range | -4 °F to 248 °F |
| Drinking-water approval | NSF/ANSI 61 |
| Electrical approvals | CE,UKCA,SEPRO,RCM, |
| Grundfos product number | 99340851 |
| EAN | 5713827515286 |
| Net weight | 87.2 lb (39.6 kg) |
| Gross (shipping) weight | 134.5 lb (61.0 kg) |
| Shipping volume | 8.26 ft³ |
| Country of origin | United States |
| HS / customs tariff code | 8413.70.2040 |
| Part | Description | Grundfos P/N |
|---|---|---|
| Shaft seal kit | HQQE cartridge shaft seal, 12 mm — the primary wear item | 96455086 |
| Wear parts kit | CR/I/N 3 wear parts set, silicon carbide (covers 15-stage build) | Contact us |
| Gasket kit | EPDM gasket set, CR/I/N 1s/1/3/5 | 96455090 |
| Replacement motor | 90D, 182TC, 3 HP, 440-480 V | 98362284 |
| Coupling kit / guard | Frame-dependent — send your pump nameplate and we will confirm | Contact us |
Genuine Grundfos service kits. All specifications above are taken directly from official Grundfos product data.
Water supply and pressure boosting • reverse osmosis and membrane filtration feed • water treatment and transfer • boiler feed and condensate • industrial process and washing • HVAC and cooling circuits • irrigation.
Accessories for This Pump
Commonly specified alongside Grundfos E-pumps. Send us your pump nameplate and we will confirm the correct part for your exact build and voltage before you order.
- RPI Inlet Pressure Sensor
Inlet pressure protection with low-suction shutdown. 
VFS Flow & Temperature Sensor
Flow and temperature feedback to the pump’s onboard controller.- RPS Pressure Sensor
Discharge pressure feedback for constant-pressure booster control.
Building-automation connectivity
This pump accepts a Grundfos CIM interface card (or an external CIU box) to report to a BMS or PLC. All eight are the same card with a different protocol — choose the one your building system speaks:
CIM/CIU 100 GENIbus · CIM/CIU 150 PROFIBUS DP · CIM/CIU 200 Modbus RTU · CIM/CIU 250 Modbus TCP · CIM/CIU 300 BACnet MS/TP · CIM/CIU 500 EtherNet/IP · CIM/CIU GRM · CIM/CIU LonWorks
