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Vertical, multistage centrifugal pump with suction and discharge ports on the same level, so it drops into a straight pipe run. The pump head and base are ductile cast iron (ASTM A536 65-45-12); chambers, impellers and shaft are stainless steel AISI 304.
The CR 95 frame is rated at 500 GPM. The family number is Grundfos’s nominal duty in cubic metres per hour, not a GPM figure — size the pump from the performance table below, not from the model number.
13 models are offered, from CR 95-1-1 to CR 95-5-1, covering 15 to 75 HP on NEMA C-face TEFC motors (three-phase). Models with a -1, -2 or -3 suffix use that many reduced-diameter impellers to trim head between full stage counts. Connections are 4 in ANSI flanges (150 lb or 300 lb class, by model).
CR 90 drop-in replacement: options marked "CR 90 Drop-in" are CR 95 pumps built to the installation dimensions of the discontinued CR 90, so they replace an existing CR 90 without re-piping. Choose them only when replacing a CR 90; otherwise choose the standard CR 95.
Each part number is a complete pump: pump end, motor, coupling, coupling guard and cartridge shaft seal, factory assembled.
Not included: ANSI companion flanges (4 in) — order separately. Motor starter or VFD, overload protection, pressure switch or sensor, isolation valves, check valve and foundation bolts are also not included.
To run it needs: a three-phase supply matching the motor voltage shown in the selected option, a correctly sized starter with overload protection, flooded suction or adequate NPSH, and a level, rigid foundation. These are fixed-speed pumps; for integrated variable-speed control see the CRE range.
| Specification | Value |
|---|---|
| Rated flow at 60 Hz | 500 GPM |
| Shut-off head range | 119 to 701 ft |
| Motor power range | 15 to 75 HP |
| Motors | NEMA C-face, TEFC, 2-pole, service factor 1.25 |
| NEMA frames | 254TC, 256TC, 284TSC, 286TSC, 324TSC, 326TSC, 364TSC, 365TSC |
| Frequency | 60 Hz, 2-pole (about 3,500 rpm) |
| Suction and discharge port | 4 in, in-line |
| Connection | 4 in ANSI flanges (150 lb or 300 lb class, by model) |
| Maximum operating pressure | 232 psi / 363 psi depending on model and connection |
| Liquid temperature range | −4 °F to 248 °F with HQQE; −4 °F to 194 °F with HQQV |
| Maximum ambient temperature | 104 °F |
| Pump orientation | Vertical |
| Approvals | NSF/ANSI 61 (HQQE seal versions), NSF/ANSI 372 |
| Curve tolerance | ISO 9906:2012 grade 3B |
Find the head you need in feet at your flow and pick the first model that meets it. Points are read from the Grundfos 60 Hz curve for each model at 20%, 50% and 75% of its maximum flow; shut-off is the head at zero flow, not a working point.
| Model | HP | 20% flow | 50% flow | 75% flow | Shut-off head |
|---|---|---|---|---|---|
| CR 95-1-1 | 15 | 131 gpm · 117 ft | 328 gpm · 103 ft | 491 gpm · 78 ft | 119 ft |
| CR 95-1 | 20 | 131 gpm · 144 ft | 327 gpm · 129 ft | 490 gpm · 107 ft | 149 ft |
| CR 95-2-2 | 25 | 131 gpm · 232 ft | 328 gpm · 210 ft | 491 gpm · 158 ft | 232 ft |
| CR 95-2-1 | 30 | 131 gpm · 259 ft | 328 gpm · 236 ft | 491 gpm · 186 ft | 263 ft |
| CR 95-2 | 30 | 130 gpm · 286 ft | 326 gpm · 261 ft | 489 gpm · 217 ft | 294 ft |
| CR 95-3-2 | 40 | 132 gpm · 376 ft | 329 gpm · 344 ft | 494 gpm · 268 ft | 378 ft |
| CR 95-3-1 | 50 | 132 gpm · 404 ft | 329 gpm · 372 ft | 494 gpm · 300 ft | 410 ft |
| CR 95-3 | 50 | 131 gpm · 432 ft | 328 gpm · 399 ft | 493 gpm · 332 ft | 441 ft |
| CR 95-4-2 | 60 | 132 gpm · 521 ft | 330 gpm · 482 ft | 494 gpm · 382 ft | 525 ft |
| CR 95-4-1 | 60 | 132 gpm · 550 ft | 330 gpm · 509 ft | 494 gpm · 414 ft | 557 ft |
| CR 95-4 | 75 | 132 gpm · 579 ft | 330 gpm · 537 ft | 494 gpm · 447 ft | 589 ft |
| CR 95-5-2 | 75 | 132 gpm · 664 ft | 329 gpm · 615 ft | 494 gpm · 493 ft | 670 ft |
| CR 95-5-1 | 75 | 131 gpm · 691 ft | 328 gpm · 642 ft | 493 gpm · 524 ft | 701 ft |
Read from Grundfos published 60 Hz curves (water at 68 °F); actual head varies slightly with motor speed. For a duty between two models, email us and we will size it against the full curve.
| Component | Material |
|---|---|
| Pump head and base | Ductile cast iron, ASTM A536 65-45-12 |
| Chambers and impellers | Stainless steel AISI 304 |
| Shaft | Stainless steel AISI 304 |
| Shaft seal faces | Silicon carbide / silicon carbide |
| Seal and gasket rubber | EPDM (HQQE) or FKM (HQQV) |
| Bearing | Silicon carbide |
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