The rear axial bearing is mounted in the hub for the inner magnetic rotor, and the front axial bearing is actually part of the circulation pump supplying lubrication and cooling for the magnetic drive.

Materials rotor bearing assembly

Metal parts:

1.4460 / duplex steel

Shaft sleeve:

Silicon carbide

Axial bearing faces:

Silicon carbide

Radial bearing bushes:

Option (Q) silicon carbide

 

Option (C) carbon

3.16.3 Circulation pump

To ensure proper lubrication of the rotor bearings and cooling of the magnetic coupling a circulation pump is providing a controlled flow over the magnetic drive. The liquid is flowing from the discharge side of the pump via holes and grooves in the bearing assembly and the magnetic drive back to the suction side of the pump. This circulation pump is designed as an internal gear pump where the drive gear, integrated in the front axial bearing is driving a disk rotor which is rotating in an insert, situated between rotor and intermediate cover. The insert and the complete rotor bearing assembly are mounted on the intermediate cover.

Shaft nut

Rear axial bearing +

Hub inner rotor

Intermediate cover

Disk rotor

Insert

Front axial bearing +

Gear of circulation pump

 

Rotor shaft

Material circulation pump parts

Pump gear:

1.4460 duplex steel

Disk rotor:

PEEK

Insert:

1.4460 duplex steel

3.16.4 Sealing rings and gaskets

The magnetic drive replaces a dynamic shaft sealing, so there are only static seals on TopGear MAG pumps. The intermediate cover, separation can and pump cover are sealed with O-rings. Standard O-ring material is FPM, but other O-ring materials can be supplied on request. The maximum allowable operating temperature and chemical resistance must be considered for selection of the O-ring material.

Max. allowable temperature for FPM (Fluorcarbon) = 200 °C

The topcover/safety relief valve is sealed with a graphite gasket and following sealing rings are used to seal plugs:

Cast iron pump casing parts: Stainless steel casing parts:

Steel sealing rings with asbestos-free filling PTFE sealing rings

24

A.0500.551 – IM-TGMAG/02.00 EN (02/2008)

Page 23 Page 25
Page 24
Image 24
SPX Cooling Technologies TG MAG86-100 Circulation pump, Sealing rings and gaskets, Materials rotor bearing assembly
Page 23 Page 25

TG MAG86-100, TG MAG23-65, TG MAG58-80, TG MAG15-50, TG MAG185-125 specifications

SPX Cooling Technologies has established itself as a leader in the design and manufacturing of cooling systems, offering a wide range of products tailored to meet specific industrial and commercial needs. Among its impressive lineup, the TG MAG series stands out, featuring models such as TG MAG185-125, TG MAG23-65, TG MAG86-100, TG MAG58-80, and TG MAG15-50. Each of these models combines innovative technology with robust performance characteristics, making them ideal choices for various applications.

The TG MAG185-125 model is designed for high-capacity cooling requirements, offering exceptional thermal performance while maintaining energy efficiency. Its advanced fan design minimizes noise levels, making it suitable for installations in noise-sensitive areas. Furthermore, the unit benefits from a corrosion-resistant construction, ensuring longevity and reliable operation in diverse environments.

For smaller applications, the TG MAG23-65 provides a compact solution without compromising on performance. This unit features a space-efficient design and utilizes high-efficiency fans that optimize airflow, thereby enhancing overall cooling efficiency. The integrated digital controls allow for precise temperature management, making it easy for operators to monitor and adjust settings as needed.

The TG MAG86-100 model serves as an ideal middle-ground solution, balancing capacity and efficiency. It incorporates state-of-the-art technology, such as variable speed drives, which adjust the fan speed based on cooling demand, resulting in significant energy savings. The design also promotes easy maintenance, with accessible components that facilitate regular servicing and inspections.

For medium-scale needs, the TG MAG58-80 combines durability with performance, featuring a robust frame that can withstand harsh operational conditions. Its efficient heat exchange technology maximizes cooling output while minimizing energy consumption. Moreover, the enhanced airflow system ensures uniform cooling across the entire unit.

Lastly, the TG MAG15-50 is perfect for smaller spaces where cooling requirements are less demanding. Despite its size, this model is equipped with cutting-edge features such as a compact structure and highly efficient cooling mechanisms to ensure effective performance. The easy installation process and low maintenance needs further enhance its appeal.

Overall, the TG MAG series provides a range of innovative cooling solutions tailored to meet diverse industrial requirements, characterized by efficiency, durability, and advanced technology, ensuring optimal performance across all operating conditions.
Top Page Image Contents