The Grundfos CR 64-1-1 (product number 99918282, type key A-G-A-E-HQQE) is a 1-stage vertical multistage centrifugal pump rated 339 US gpm at 68.24 ft, driven by a 10 HP motor. Certified to NSF/ANSI 61 for drinking-water service.
| Rated flow | 339 US gpm |
| Rated head | 68.24 ft |
| Maximum head | 105 ft |
| Stages / impellers | 1 / 1 |
| Reduced-diameter impellers | 1 |
| Rated pump speed | 3467 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 1563 EN-GJS-500-7 — ASTM A536 80-55-06 |
| 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) | 10 HP |
| Voltage | 230/460 V |
| Phase | Three-phase |
| Frequency | 60 Hz |
| Rated speed | 3530 rpm |
| Number of poles | 2 |
| Rated current | 23.0/11.5 A |
| Full-load SF current | 26.5/13.2 A |
| Starting current | 750 % |
| Service factor | 1.15 |
| Power factor (cos φ) | 0.91 |
| Motor efficiency | 90.2% full load | 90.2% at 3/4 load | 89.5% at 1/2 load |
| Motor standard / make | NEMA / WEG |
| Enclosure class | IP55 / TEFC |
| Insulation class | F |
| Built-in motor protection | NONE |
| Cooling method | IC 411 |
| Motor flange | 213TC |
| Grundfos motor number | 99883246 |
| Frequency converter | None |
| Connection type | ANSI |
| Pressure rating | PN 16 |
| Suction port | 4 inch |
| Discharge port | 4 inch |
| Maximum ambient temperature | 104 °F |
| Liquid temperature range | -22 °F to 248 °F |
| Drinking-water approval | NSF/ANSI 61 |
| Electrical approvals | CURUS |
| Grundfos product number | 99918282 |
| EAN | 5715114131483 |
| Net weight | 280.4 lb (127.2 kg) |
| Gross (shipping) weight | 387 lb (175.5 kg) |
| Shipping volume | 25.4 ft³ |
| Country of origin | United States |
| HS / customs tariff code | 8413.70.2040 |
📄 Grundfos Data Sheet (PDF)📏 Dimensional Drawing
The data sheet PDF carries the full specification table, the 60 Hz performance curve and the dimensioned outline drawing for product number 99918282. Issued by Grundfos.
Dimensioned outline drawing — overall envelope, port centres and base bolt pattern. Confirm against the drawing before finalising pipework.
| Part | Description | Grundfos P/N |
|---|---|---|
| Shaft seal kit | HQQE cartridge shaft seal, 12 mm — the primary wear item | Contact us |
| Wear parts kit | CR/I/N 64 wear parts set, silicon carbide (covers 1-stage build) | Contact us |
| Gasket kit | EPDM gasket set, CR/I/N 1s/1/3/5 | Contact us |
| Replacement motor | WEG, 213TC, 10 HP, 230/460 V | 99883246 |
| 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.
