GRK 25 / 4 D, radial blower GRK 25 / 4 D 3 phase engine, 4 pole, size 250

Radial blower GRK 25 / 4 D 3 phase engine, 4 pole, size 250

Radial blower with plastic spiral housing. High-pressure fan for industrial applications. Suitable for the promotion of corrosive and acid-like media. For easy and direct installation on a pipe system. Low noise level and high efficiency. The engine is located outside the air stream. The motor base made of plastic, for fixing the fan, is included. Plastic housing. Standard alignment for case LG 270 °. Suitable for temperature ranges up to 50 ° C. Radial wheels with polypropylene back-curved shovels. Rotary current motor: three-phase rotary current motor. Protection class IP 55. IE3 engine. Type of operation S1 (continuous operation). Speed control with frequency inverter. Permissible frequency range for speed control with frequency inverter 20-50 Hz. The temperature in the fan engine is monitored by cold conductor. The cold conductors must be connected to a discharge system that permanently separates the fan from the net at too high temperatures. Electrical connection: connection in the terminal box on the motor. Article: GRK 25 / 4 D, power supply: 3750 m3 / h, speed: 2900 1 / min, wheel type: radial, speed control: yes, reversibility: no, voltage: current, measurement voltage: 400 V, power: 50 Hz, nominal power: 1100 W, inenn: 3,2 A, protection: IP 55, heat class: F, pole switchable: no, installation location: pipe connection, installation position: horizontal, material: 50 mm, weight: 550 mm, weight: 550 mm, weight: 50 mm, weight: 50 mm, weight: 550 mm, weight: 50 mm, weight: 50 mm, weight: 50 mm