Grundfos TPE Circulation pump 50-420/2

Single-stage dry-runner pump with volute casing and inline suction and discharge ports with the same diameter. The pump is of top-pull-out design, meaning the pump head (motor, top piece, and impeller) can be dismantled during maintenance and service without touching the pipe connections of the pump casing. The pump is equipped with an unbalanced rubber bellows seal. The shaft seal is according to DIN EN 12756. Pipe connection is via PN 16 DIN flanges (EN 1092-2 and ISO 7005-2). The pump is equipped with a shroud-cooled synchronous motor with permanent magnets. The motor efficiency is classified as IE5 in accordance with IEC 60034-30-2. The motor has a frequency converter and PI controller in the terminal box. This allows for stepless regulation of the motor speed and thus adaptation of the output to a given need. The pump is equipped with a differential pressure sensor.