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• The VFI sensor from Grundfos Direct Sensors™ is a flow sensor designed for industrial purposes. It is based on the principle of vortex shedding behind a bluff body. The VFI sensors are fully compatible with wet, aggressive media. They use MEMS sensing technology in combination with the Silicoat® corrosion-resistant coating technology on the sensor chip. This makes the VFI sensors very robust and ideal for pump integration and monitoring in harsh environments. The sensor is supplied with a stainless steel flow pipe and has flanges or threaded ends for use with union nuts. Applications: • Water treatment and distribution • water utility • water monitoring • HVAC systems • chiller systems • HPC and IT cooling systems • micro CHP • heat pumps • solar systems: heating and cooling.

• Wide operating temperature range: -30 – 120 °C (-22 to 248 °F) • compact design • MEMS technology • No moving parts • compatible with wet, aggressive media • accurate, linearised and temperature-compensated output signal • quick temperature response (direct contact with medium) • cost-effective and robust design • system solution with Grundfos pumps.
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