Grundfos - CME 3-7-G A R G E AQQE Horizontal Multi-Stage Booster Pump 415V - Stainless Steel

CME 3-7 A-R-G-E-AQQE S-A-D-N

space-efficient, dependable, horizontal, multi-stage, end-suction centrifugal pump unit with axial suction port and radial discharge port. Pump materials in contact with the liquid are in high-grade Stainless Steel. The mechanical shaft seal is a specially engineered, unbalanced O-ring seal. All pipework connection is via internal Whitworth pipe threads, Rp (ISO 7/1). The pump is equipped with a 3-phase, fan-cooled, permanent-magnet, synchronous motor. The motor efficiency is classified as IE5 in accordance with IEC 60034-30-2. The motor includes a frequency converter and PI controller in the motor terminal box. This enables continuously variable control of the motor speed, which again enables adaptation of the performance to a given requirement. An operating panel on the motor terminal box enables setting of required setpoint as well as setting of pump to "Min." or "Max." operation or to "Stop". The Grundfos Eye indicator on the operating panel provides visual indication of pump status:

"Alarm": Motor has stopped (flashing red indicator lights) "Warning": Motor is still running (rotating yellow indicator lights) or has stopped (permanently yellow indicator lights) "Power on": Motor is running (rotating green indicator lights) or not running (permanently green indicator lights)

Communication with the pump is possible by means of Grundfos GO Remote (accessory). The remote control enables further settings as well as reading out of a number of parameters such as "Actual value", "Speed", "Power input" and total "Power consumption". The terminal box holds terminals for these connections:

interface for Grundfos CIM fieldbus module GENIbus connection two signal-relay outputs (potential-free contacts) 24 V voltage supply for sensors Grundfos Digital Sensor input and output one configurable digital input or open-collector output 5 V voltage supply to potentiometer and sensor two analog inputs, 0(4)-20 mA, 0-5 V, 0-10 V, 0.5 - 3.5 V one dedicated digital input

Suitable for: Commercial heating, Commercial air conditioning, Commercial water pressure boosting, District heating, Domestic water pressure boosting, Industrial cleaning process, Industrial heating, Industrial water supply and transfer, Desalination, Water distribution, Irrigation, 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: 19.7 kg
• Mains frequency: 50 / 60 Hz
• Approvals: CE,EAC,CURUS,UKCA
• Rated Head: 69.97 m
• Rated Flow: 3.72 m³/h
• Product Voltage: 3 x 380-500 V
• Temperature Liquid Range: -20 .. 120 °C
• Pumped Liquid: Water
• Type of connection: Rp
• Maximum Operating Pressure: 16 bar
• 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.