Grundfos CR 10 ODP Multistage Pump

Vertical, multistage centrifugal pump with suction and discharge ports on the same level. The pump head and base are in cast iron; all other wetted parts are in stainless steel EN 1.4301 (AISI 304). Because the ports share a centreline, the pump drops into a straight pipe run without an offset.

The CR 10 frame is rated at 53.3 GPM. The family number is Grundfos’s nominal duty in cubic metres per hour, not a GPM figure — size the pump from the rated head table below, not from the model number.

3 models are offered, from CR 10-14 to CR 10-17, covering 15 HP on NEMA 254TC C-face open drip-proof (ODP) motors. Adding stages raises head at the same flow without changing the footprint. Connections are 2 in ANSI 250 lb flanges (rated 362 psi).

• In-line ports — suction and discharge on the same level, so the pump installs in a straight run without an elbow or offset.
• Cast iron head and base, 304 stainless wetted parts — chambers, impellers, shaft and sleeves in EN 1.4301 (AISI 304).
• Cartridge shaft seal — replaced as a complete unit without setting the seal by hand and without special tools.
• Silicon-carbide seal faces — SiC against SiC on both faces in every seal option listed here.
• NSF/ANSI 61 certified for drinking water contact.
• Open drip-proof (ODP) NEMA C-face motor — 254TC frames across this range, 60 Hz.
• Connection — 2 in ANSI 250 lb flanges (rated 362 psi).

• HQQE — EPDM. Silicon-carbide faces with an EPDM O-ring, rated −4 °F to 248 °F. The standard water seal: potable water, hot water and glycol. Not for mineral oils.
• HQQV — FKM (Viton). Silicon-carbide faces with an FKM O-ring, rated −4 °F to 194 °F. For mineral oils, fuels and liquids that attack EPDM.

In the Grundfos type key the final letter is the rubber: E = EPDM, V = FKM. Both options use silicon-carbide faces (QQ) and the same cartridge format.

• Pressure boosting in commercial buildings, hotels and multi-unit residential
• HVAC heating, chilled water and condenser water circulation
• Irrigation and spray systems
• Water treatment, filtration and reverse osmosis feed
• Industrial process cooling and liquid transfer
• Boiler feed and condensate within the published temperature limits

Each part number is a complete pump: pump end, motor, coupling, coupling guard and shaft seal, factory assembled and tested.

Companion flanges are not included with ANSI flanged pumps and are ordered separately.

Motor starters, variable frequency drives, pressure sensors, base plates, foundation bolts and isolation valves are not included. These are fixed-speed pumps; for integrated variable-speed control see the CRE range.

Select the model, then the seal. Each combination is a distinct Grundfos part number, listed in the table above and shown in the SKU of the selected variant.

Not every combination exists — the picker shows only the combinations Grundfos publishes.