The Grundfos CR 5-7 (product number 99916687, type key A-B-A-E-HQQE) is a 7-stage vertical multistage centrifugal pump rated 30.4 US gpm at 176.5 ft, driven by a 3 HP motor. Certified to NSF/ANSI 61 for drinking-water service.
| Rated flow | 30.4 US gpm |
| Rated head | 176.5 ft |
| Maximum head | 241.8 ft |
| Stages / impellers | 7 / 7 |
| Reduced-diameter impellers | 0 |
| Rated pump speed | 3499 rpm |
| Maximum operating pressure | 232.06 psi |
| Max pressure at temperature | 232 / 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 | Cast iron — EN 1561 EN-GJL-200 — ASTM A48-25B |
| Impellers & chambers | Stainless steel — EN 1.4301 — AISI 304 |
| Shaft seal | HQQE — EPDM elastomers |
| Shaft seal arrangement | Single |
| Bearing | SIC |
| Elastomers | EPDM |
| Rated power (P2) | 3 HP |
| Voltage | 115/208-230 V |
| Phase | Single-phase |
| Frequency | 60 Hz |
| Rated speed | 3510 rpm |
| Number of poles | 2 |
| Rated current | 24.2/19.7-12.1 A |
| Full-load SF current | 27.8/12.1 A |
| Starting current | 700 % |
| Service factor | 1.15 |
| Power factor (cos φ) | 0.99 |
| Motor efficiency | 80.0% full load | 78.0% at 3/4 load | 73.0% at 1/2 load |
| Motor standard / make | NEMA / WEG |
| Enclosure class | IP55 / TEFC |
| Insulation class | F |
| Built-in motor protection | PTO |
| Cooling method | IC 411 |
| Motor flange | 182TC |
| Grundfos motor number | 99883322 |
| Frequency converter | None |
| Connection type | Oval / NPT(F) |
| Pressure rating | PN 16 |
| Suction port | 1 1/4 inch |
| Discharge port | 1 1/4 inch |
| Maximum ambient temperature | 104 °F |
| Liquid temperature range | -4 °F to 248 °F |
| Drinking-water approval | NSF/ANSI 61 |
| Electrical approvals | CURUS |
| Grundfos product number | 99916687 |
| EAN | 5715114114561 |
| Net weight | 119.4 lb (54.2 kg) |
| Gross (shipping) weight | 173.7 lb (78.8 kg) |
| Shipping volume | 25.4 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 5 wear parts set, silicon carbide (covers 7-stage build) | 96455096 |
| Gasket kit | EPDM gasket set, CR/I/N 1s/1/3/5 | 96455090 |
| Replacement motor | WEG, 182TC, 3 HP, 115/208-230 V | 99883322 |
| 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 fixed-speed Grundfos pumps. Send us your pump nameplate and we will confirm the correct part for your exact build and voltage before you order.
LiqTec Dry-Run Protection Sensor
Shuts the pump down before a dry run destroys the shaft seal — the single most common CR failure mode.
CUE Variable Frequency Drive
External VFD that converts this fixed-speed pump to constant-pressure or variable-flow control.- RPS Pressure Sensor
Discharge pressure feedback for constant-pressure booster control.
Frequently Asked Questions
Specifications verified against the manufacturer data sheet.
