Grundfos CHIU 4-20 Hot Clean Water Pump 3/4 HP 440V B 4J008162 P10643

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Grundfos CHIU 4-20 Hot Clean Water Pump 3/4 HP 440V B 4J008162 P10643

The Grundfos CHIU 4-20 is an industrial-grade, multistage centrifugal pump primarily used for liquid transfer, temperature control, and pressure boosting in commercial environments.

Specs:

Performance & Hydraulic Specifications:

• Rated Flow Rate:19.8 US gpm (4.5 m³/h)
• Maximum Head (Lift):62.3 feet (19 metres)
• Rated Head:49.2 feet (15 metres)
• Operating Pressure:145 psi (10 bar) maximum system pressure
• Pump Stages: 2 stages (indicated by the "-20" designation)

Electrical Data:

• Motor Power Output (P2): 3/4 HP (0.53 kW)
• Power Input (P1): 700 Watts
• Mains Frequency: 60 Hz (Standard North American industrial application speed)
• Rated Voltage: 3-Phase 440V (Wiring terminals can support a 3x 200-230V / 400-440V configuration depending on delta/star setup)
• Rated Current: 3.0 Amps
• Motor Speed: ~3450 RPM nominal synchronous operating speed
• Enclosure / Insulation: IP44 rated protection class with Class H insulation thermal limits

Materials & Construction:

• Pump Housing: AISI 316 Stainless Steel (DIN W.-Nr. 1.4401)
• Impellers & Intermediate Chambers: AISI 316 Stainless Steel
• Material Code: G (Grundfos classification for all-stainless-steel fluid components)
• Rubber Elastomers: EPDM (Code E; optimal for high temperatures and water glycol mixtures)
• Shaft Seal Type: U (Canned rotor / magnetic drive design; completely seal-less to eliminate leak paths)

Physical Dimensions & Installation Ports:

• Suction Inlet Size: 1 1/4" NPT threaded female port
• Discharge Outlet Size: 1" NPT threaded female port
• Liquid Temperature Limits: 5°F to 230°F (-15°C to 110°C)
• Ambient Air Temperature Limits: 5°F to 104°F (-15°C to 40°C)
• Net Unit Weight: 44.8 lbs (20.3 kg)