Product Overview
The document describes the PTÖK series of bell housings with integrated oil-air coolers, designed for use with electric motors ranging from 0.55 to 22 kW. These housings are available in four model series with diameters ranging from 200 to 350 mm. They feature a noise-dampening design and can be installed both horizontally and vertically. The housings comply with VDMA 24561 standards, allowing for easy replacement of standard bell housings with those featuring oil cooling.

Technical Advantages
The PTÖK series offers high cooling capacity with low noise output, suitable for use as reflux or leak oil coolers. They require no electrical installation and are easy to maintain due to the simple installation and removal of the cooler element. The robust design ensures safety during pressure peaks, and standard dampening can reduce noise levels by up to 6 dB(A).

Technical Data
The document provides detailed technical data for each model in the PTÖK series, including cooling power, engine power, airflow, fan input power, noise level, and correlation between cooling and engine power. The working pressure is 16 bar, with a maximum static pressure of 10 bar. The nominal rotation speed is 1500 kW 1/min, and the direction of pump rotation is always clockwise.

Cooling Capacity
The document explains that without additional heat sources, 30-40% of motor power is lost as heat energy. A supplementary cooler is necessary to prevent oil overheating, with a cooling capacity of 20-30% of motor power typically sufficient. The PTÖK series is easy to install and requires minimal space, achieving the necessary cooling capacity in most applications.

Ordering Information
Ordering codes for bell housings and couplings are provided, along with dimensions and assembly instructions available online.

Contact Information
Contact details for HBE GmbH, the manufacturer, are provided for further inquiries.