The Grundfos CME 5-4 (product number 99329863, type key A-S-G-V-AQQV U-A-A-N) is a horizontal multistage centrifugal pump rated 24.8 US gpm at 145 ft, driven by a motor. Certified to WRAS,ACS,NSF61,UBA for drinking-water service.
| Rated flow | 24.8 US gpm |
| Rated head | 145 ft |
| Rated pump speed | 3480 rpm |
| Maximum operating pressure | 232.06 psi |
| Max pressure at temperature | 232 / 194 psi / °F |
| Pump orientation | Horizontal |
| 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.
| Impellers & chambers | Stainless steel — EN 1.4401 — AISI 316 |
| Shaft seal | AQQV — FKM (Viton) elastomers |
| Elastomers | FKM (Viton) |
| Frequency | 50 / 60 Hz |
| Motor standard / make | NEMA |
| Enclosure class | IP55 |
| Frequency converter | Built-in |
| Connection type | NPT(F) |
| Suction port | 1 1/4 inch |
| Discharge port | 1 inch |
| Liquid temperature range | -4 °F to 194 °F |
| Drinking-water approval | WRAS,ACS,NSF61,UBA |
| Electrical approvals | CE,EAC,CURUS,UKCA |
| Grundfos product number | 99329863 |
| EAN | 5713827329098 |
| Net weight | 37.3 lb (16.9 kg) |
| Gross (shipping) weight | 58.4 lb (26.5 kg) |
| Country of origin | United States |
| HS / customs tariff code | 8413.70.2040 |
| Part | Description | Grundfos P/N |
|---|---|---|
| Shaft seal kit | AQQV cartridge shaft seal, 12 mm — the primary wear item | Contact us |
| Wear parts kit | CME 5 wear parts set, silicon carbide | 96455096 |
| Gasket kit | FKM (Viton) gasket set, CR/I/N 1s/1/3/5 | 96455091 |
| 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
