Grundfos - CRN3-31 S-P-A-E-HQQE Vertical Multi-Stage Pump - 400V - Three Phase - 500 Ltr/min. - Stainless Steel

Vertical, non-self-priming, high-pressure multi-stage centrifugal pump unit with suction and discharge ports on the same level (in-line) enabling installation in a horizontal one-pipe assembly. The chamber stack is turned upside-down to ensure that the shaft seal is not affected by the high pump discharge pressure. A cartridge shaft seal ensures high reliability, safe handling and straightforward service and access. Power transmission is via a split coupling. Pipe connection is via PJE (Victaulic®) couplings.

Suitable for: Commercial heating, Commercial air conditioning, Commercial water pressure boosting, District heating, District cooling, Machining, Industrial cleaning process, Process liquids transfer, Industrial heating, Industrial cooling, Industrial water supply and transfer, Industrial wastewater treatment and reuse, Industrial process water treatment, Desalination, Reverse osmosis, Surface water intake, Drinking water treatment, Water distribution, Irrigation, Solar water solutions, Community water supply

Real-world product applications

• Pressure boosting for water supply systems
• Feeding distribution networks requiring higher pressure
• Supporting irrigation and washdown water delivery
• General clean-water transfer for utility systems
• Supplying water to buildings and equipment

Key Product Features

• Net weight: 42.6 kg
• Mains frequency: 50 Hz
• Approvals: CE,EAC
• Rated Head: 153.2 m
• Rated Flow: 3 m³/h
• Product Voltage: 3 x 380-415D V
• Temperature Liquid Range: -20 .. 120 °C
• Pumped Liquid: Water
• Connection Size: 1 1/4 inch
• Type of connection: PJE
• Impeller Material: Stainless Steel
• Pump Housing Material: Stainless Steel

This is a Grundfos Multistage pump built for high-pressure water supply applications.

Grundfos (est. 1945) is a Danish pump manufacturer known for high-efficiency circulators, multistage boosters, borehole and wastewater pumps, plus packaged pressure systems. The range covers HVAC circulation, domestic hot water recirculation, pressure boosting, industrial water transfer and public water management, with strong focus on energy efficiency and intelligent controls.