Grundfos - TPE 100-70/4 S-A-F-A-BQQE-HDA Variable Speed In-Line Circulator Pump - 415V - Three Phase - 1751 Ltr/min. - Cast Iron

Single-stage, close-coupled, volute (centrifugal) pump unit with in-line suction and discharge ports of identical diameter. The pump is of the top-pull-out design, i.e. the power head (motor, pump head and impeller) can be removed for maintenance or service while the pump housing remains in the pipework. The pump is equipped with an unbalanced rubber bellows seal. The shaft seal is according to EN 12756. All pipework connection is via PN 16 DIN flanges (EN 1092-2 and ISO 7005-2). The pump is equipped with a fan-cooled, permanent-magnet synchronous motor. The pump is equipped with a fan-cooled asynchronous 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. The pump is equipped with a differential pressure sensor.

Suitable for: Commercial heating, Commercial air conditioning, District heating, District cooling, Industrial heating, Industrial cooling, Desalination, Drinking water treatment, Water distribution, Irrigation, Community water supply

Real-world product applications

• Boosting water pressure to multiple outlets in a building
• Maintaining stable pressure where demand varies
• Supplying water from storage tanks to distribution pipework
• Supporting general water supply and transfer systems
• Assisting with pressure control in utility installations

Key Product Features

• Net weight: 90 kg
• Mains frequency: 50 / 60 Hz
• Rated Head: 4.75 m
• Max Head: 70 dm
• Rated Flow: 79.1 m³/h
• Product Voltage: 3 x 380-500 V
• Temperature Liquid Range: -25 .. 120 °C
• Pumped Liquid: Water
• Port to Port Length: 550 mm
• Connection Size: DN 100
• Type of connection: DIN
• Maximum Operating Pressure: 16 bar
• Impeller Material: Cast Iron
• Pump Housing Material: Cast Iron

This is a Grundfos Circulator pump which can be used within closed loop cooling, heating and hot water systems.

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.