📄 Download the Grundfos CR/CRN Data Booklet — North America 60 Hz (PDF) Official Grundfos literature 6013306
The Grundfos CR 185 Vertical Multistage Centrifugal Pump (CR 185) is part of the Grundfos CR range, engineered in Cast iron / 304 stainless. Delivers up to 1100 GPM at heads up to 900 ft, with motor sizes from 60-300 HP. Drive: Fixed-speed NEMA TEFC motor, 60 Hz. Used in Industrial pressure boosting and similar applications.
Specifications
| Max flow | 1100 GPM (60 Hz) |
| Max head | 900 ft |
| Max working pressure | 435 psi |
| Motor range | 60-300 HP |
| Stages | up to 6 |
| Frequency | 60 Hz |
| Voltage | 115/230 V single-phase or 208-230/440-480 V three-phase (model dependent) |
| Liquid temperature | 5 - 250 °F (-20 - 250 °F with HQQV seal) |
| Construction | Cast iron / 304 stainless |
| Motor | Fixed-speed NEMA TEFC motor, 60 Hz |
| Brand | Grundfos |
| Model | CR 185 |
| Country of Origin | Denmark / USA (varies by model) |
Materials of Construction
Cast iron pump head, base & motor stool; AISI 304 stainless steel chambers, impellers and shaft; ceramic/carbon shaft seal (HQQE/HQQV)
Typical Applications
- Industrial pressure boosting
- boiler feed
- cooling-tower makeup
- condensate transfer
- washdown
- reverse osmosis pre-feed
- fire protection
- light-industry process water
Datasheets & Manuals
Industries & Applications
The Grundfos CR 185 is widely deployed across these industries and use cases:
- Boiler feed water in industrial steam systems
- Reverse osmosis high-pressure feed in pretreatment
- Cooling tower makeup water
- Cooling tower bleed transfer
- High-rise commercial pressure boosting
- Fire protection jockey pump
- Irrigation in agriculture and golf courses
- Cip (clean-in-place) circulation
- Condensate transfer in district heating
- Water transfer in food and beverage plants
Related & Compare
Frequently Asked Questions
- What is the maximum flow rate of the Grundfos CR 185?
- The CR 185 delivers up to 1100 GPM at 60 Hz.
- What is the maximum head/pressure of the CR 185?
- Maximum head is 900 ft (about 435 psi). Actual operating point depends on stage count and motor size.
- What materials of construction are available for the CR 185?
- Cast iron pump head, base & motor stool; AISI 304 stainless steel chambers, impellers and shaft; ceramic/carbon shaft seal (HQQE/HQQV)
- What applications is the Grundfos CR 185 suitable for?
- Industrial pressure boosting, boiler feed, cooling-tower makeup, condensate transfer, washdown, reverse osmosis pre-feed, fire protection, light-industry process water
- Can this pump be supplied with a variable frequency drive (VFD)?
- Yes - either order the matching E-Pump variant with integrated MLE motor (CRE / CRIE / CRNE / CME), or pair the fixed-speed pump with a Grundfos CUE external VFD.
- What shaft seal options are available?
- Standard HQQE (carbon/SiC with EPDM) for cold/warm water and HQQV (carbon/SiC with FKM) for hot water and aggressive media. Cartridge double seals available for hazardous duty.
- Is dry-run protection available?
- Yes - the Grundfos LiqTec sensor mounts inside the pump head and shuts down the pump if it detects dry running. Standard on most CRE configurations.
- Is the Grundfos CR 185 available with stock or quick-ship lead times?
- Many configurations ship from stock through Grundfos USA. Contact ForeverPure Place for current lead time on your specific configuration.
- How do I get a quote for the Grundfos CR 185?
- Use the Request Quote button on this page, call our sales team, or email sales@foreverpureplace.com with model, voltage, materials, seal type and quantity.
Need help selecting the right CR 185 configuration, NEMA motor, materials or seal type? Contact our pump engineering team for sizing assistance, pricing and lead times.
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.
