Grundfos 92542778 - CR 255-4-3 A-G-A-E-HQQE | Vertical | Multistage | Centrifugal

GrundfosSKU: 92542778

Price:
Sale price$146,821.00
Build to order – stocked components, typically available in 70 business days
or Call for most up to date lead times. (781) 281-8905

Description

Grundfos — World's Largest Pump Manufacturer · Bjerringbro, Denmark
CR 255-4-3 A-G-A-E-HQQE · Vertical Multistage Centrifugal Pump
CR251HP460V3.0-Phase60 HzIE3 / NEMA PremiumTEFCStainless steel

The Grundfos 92542778 (CR 255-4-3 A-G-A-E-HQQE) is a Vertical Multistage Centrifugal Pump. Cast iron head and base, stainless steel wetted parts. Used in water supply, pressure boosting, HVAC, and industrial liquid transfer. Nominal performance: 1350US gpm at 590.6ft. Rated 460V, 3.0-Phase, 60 Hz. Applications include HVAC: Heating, HVAC: Air Conditioning, Plumbing: Pressure Boosting and more.

Power
251HP
Voltage
460V
Phase
3.0-Phase
Max Flow
1350US gpm
Max Head
590.6ft
Max Pressure
580.15psi
Grundfos
World's largest pump manufacturer — engineering and manufacturing in 17 countries since 1945
Industrial Grade
IE3 / NEMA Premium motor — reduces operating cost over service life
Authorized Distributor
Genuine Grundfos product — full manufacturer warranty coverage
Expert Support
Technical help available — call (781) 281-8905 or chat
Why This Product

Vertical Multistage Design

Multiple stages in series deliver high head at compact footprint. CR handles up to 60 bar and flow ranges from 0.5 to 900 m³/h across the series range.

Stainless Steel Wetted Parts

All parts in contact with the pumped fluid are stainless steel — impeller, shaft, chamber. Cast iron is used only for the head and base which never contact the fluid.

QuickTight Connection System

No special tools needed for coupling. Integrated coupling design reduces installation and service time.

Wide Configuration Range

Available in 60+ frame sizes and 16 impeller variants. CR can be configured for almost any pressure/flow combination in commercial and industrial water systems.

Authorized Grundfos Distributor

PumpStop supplies genuine Grundfos CR pumps with full manufacturer warranty and factory-trained technical support.

Contact PumpStop for Sizing

The CR family covers a wide operating range. Contact PumpStop to confirm the correct model, voltage, and frequency for your system.

Model Information — CR 255-4-3 A-G-A-E-HQQE
Series: CR
Model Code: CR 255-4-3 A-G-A-E-HQQE
Seal Type: Cartridge seal — H rubber bellows, QQ SiC/SiC faces, E EPDM O-ring
Impeller Material: Stainless steel
Housing Material: Ductile cast iron
Shaft Seal: HQQE
Flange Rating: 300 lb
Technical Specifications
Model Number 92542778
Product Series CR
Series Description Vertical Multistage Centrifugal Pump
Power 251HP
Voltage 460V
Phase 3.0-Phase
Frequency 60 Hz
Motor Speed 3573rpm
Pump Speed 3575rpm
Full Load Current 269A
Motor Type WEG
Motor Efficiency Class IE3 / NEMA Premium
Motor Efficiency IE3 95,8%
Insulation Class F
Protection Class (IP) TEFC
Nominal Flow 1350US gpm
Nominal Head 590.6ft
Max Operating Pressure 580.15psi
Max Fluid Temperature 248°F
Max Ambient Temperature 104°F
Inlet Connection 8inch
Outlet Connection 8inch
Pipe Pressure Rating 300 lb
Pipe Standard ANSI
Impeller Material Stainless steel
Housing Material Ductile cast iron
Shaft Seal HQQE
Applications
HVAC: Heating
HVAC: Air Conditioning
Plumbing: Pressure Boosting
District heating
District cooling
Machining
Wash and clean
Process liquids transfer
Industrial heating
Cooling
Industrial water supply & transfer
Industrial wastewater treatment & reuse
Industrial process water treatment
Desalination
Municipal surface water
Drinking water treatment
Municipal water transportation
Municipal solar solutions
Rotor & spray irrigation
Ground water transfer
Livestock & Wildlife Watering
Water Treatment Fertigation
Chemigation & Dosing
Pivot & Lateral Irrigation
Frost protection
Solar boosting and water supply solutions
Controls and digital groundwater management
Solar controls and digital water management
Municipal solar solutions
Agriculture solar solutions
Livestock watering with solar solutions
Community solar solutions
Important Notices
Electrical Verify supply voltage, phase, and frequency match nameplate before installation: 460V, 3.0-Phase, 60 Hz.
Temperature limits Do not exceed max fluid temperature 248°F or max ambient temperature 104°F. Exceeding limits damages seals and motor insulation.
Dry running Do not run dry. CR pumps use the pumped fluid to lubricate the shaft seal. Dry running destroys the seal within seconds. Install dry-run protection on all automatic installations.
Maintenance Refer to the Grundfos Installation and Operating Manual (IOM) for correct installation, commissioning, and maintenance. Contact PumpStop for documentation.
Documentation
✓ Installation and Operating Manual (IOM) — CR Series
✓ Product Data Sheet — CR 255-4-3 A-G-A-E-HQQE
✓ Service Manual and Spare Parts List
Need the IOM, data sheet, or spare parts list? Contact PumpStop and we'll send it over.
Before You OrderConfirm model code, voltage, phase, and frequency match your installation. For sizing help, spare parts, or documentation, call (781) 281-8905 or chat with PumpStop.
Approvals for drinking water NSF/ANSI 61,NSF/ANSI 372
Bearing 1 WC/WC
Built-in motor protection NONE
Code for rubber E
Code for shaft seal HQQE
Connect code G
Connection 300 lb
Cooling IC 411
Curve tolerance ISO9906:2012 3B
Enclosure class (IEC 34-5) IP55
Flange size for motor 447TSD
Frequency 60 Hz
Frequency converter NONE
Full load SF current 309 A
Gross weight 3840.0 lb
IE Eff. Class IE3 / NEMA Premium
IE efficiency IE3 95,8%
IE Efficiency class IE3 / NEMA Premium
Impeller Stainless steel
Impellers 3
Insulation F
Insulation class (IEC 85) F
IP Class IP55
Liquid max temp 248°F
Liquid temperature range -4 .. 248 °F
Low NPSH N
Material certified according to European standards
Material code A
Maximum ambient temperature 104 °F
Maximum head 806.8 ft
Maximum operating pressure 580.15 psi
Model A
Motor 447TSD
Motor efficiency at 1/2 load 0.954
Motor efficiency at 3/4 load 0.958
Motor efficiency at full load 1 0.958
Motor standard NEMA
Motor type WEG
n rpm F
Net weight 3360.0 lb
Number of poles 2
Number of reduced-diameter impellers 3
P2 kW 251 HP
Phase 3
Power (P2) required by pump 251 HP
Power factor 1 0.9
Pressure rating for connection 300 lb
Pump 251 HP
Pump version A
Rated current 269 A
Rated flow 1350 US gpm
Rated head 590.6 ft
Rated power - P2 251 HP
Rated speed 3573 rpm
Rated voltage 3 x 460 V
Rubber E
Service factor 1.15
Shaft Product name:CR 255-4-3 A-G-A-E-HQQE
Shaft seal HQQE
Stages 4
Standard NEMA
Starting current 6.7
Thrust handling device Y
Type WEG
Type of connection ANSI
Version A

Motor Curves

Dimensional Drawing

DWiring Diagram

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