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African Petrochemicals Edition 16.3

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SKF TURNS UP THE HEAT WITH<br />

A PORTABLE BEARING HEATING<br />

SOLUTION<br />

COMPACT / REMOTE MAGNETIC<br />

INDUCTIVE FLOWMETER IN STAINLESS<br />

STEEL<br />

The new portable induction heater TWIM 15 from SKF uses<br />

medium-frequency technology to heat up roller bearings<br />

as well as other ring-shaped, metallic components.<br />

This innovative device heats the bearing mounted with<br />

an interference-fit onto a shaft, generating up to a 90°C<br />

temperature difference between the bearing and shaft, causing<br />

the bearing to expand. This solution eliminates the need to use<br />

force, thereby facilitating the installation process.<br />

Featuring two power settings, the electric TWIM 15 can heat<br />

sensitive components at a slower pace. In addition, a nonbearing<br />

power configuration is possible where most of the<br />

power is focused on the bore of the component.<br />

The TWIM 15 is manufactured from glass-fiber, high<br />

temperature-resistant plastic. This smart construction combined<br />

with operating software produces a low temperature difference<br />

between the bearing’s inner and outer rings. This reduces<br />

internal tensions generated by excessive thermal expansion of<br />

the inner ring compared to the outer ring.<br />

This robust construction material, together with the mediumfrequency<br />

technology, makes the heater lightweight and noisefree;<br />

heat readings are conveniently displayed on a LED control<br />

panel. This user-friendly control panel also indicates when the<br />

TWIM 15 is operational, regulates temperature and does not<br />

requiring any special training.<br />

The flat shape of the induction plate removes the need for a<br />

support yoke which allows for a variety of components to be<br />

heated on the plate. Furthermore, this versatile design reduces<br />

the number of required accessories.<br />

Recently introduced to the Sub-Saharan <strong>African</strong> market, the<br />

TWIM 15 from SKF is easy to transport and store thanks to the<br />

practical built-in handle.<br />

For information contact:<br />

Samantha Joubert, Marketing Manager<br />

Email: samantha.joubert@skf.com<br />

INSTROTECH is pleased to announce a new product development<br />

in Kobold’s MIM Magnetic Inductive Flowmeter. MIM now features<br />

IO-Link, a short distance, bi-directional, digital, point-to-point, wired,<br />

industrial communications networking standard used for connecting<br />

digital sensors and actuators to either a type of industrial fieldbus<br />

or a type of industrial Ethernet, a world-first in magnetic inductive<br />

flowmeters. MIM is now also available in a remote version for medium<br />

temperatures of up to +140°C.<br />

The MIM flowmeter was developed for measuring and monitoring<br />

smaller- and medium-sized flow of conductive liquids in pipes and<br />

operates according to the electromagnetic measurement principle.<br />

Faraday’s Law of magnetic induction states that a voltage is induced<br />

in a conductor moving through a magnetic field. The electrically<br />

conductive measuring agent acts as the moved conductor. The<br />

voltage induced in the measuring agent is proportional to the flow<br />

velocity and is therefore a value for the volumetric flow. The flowing<br />

media must have a minimum conductivity. The induced voltage is<br />

picked up by two sensing electrodes which are in contact with the<br />

measuring agent and sent to the measuring amplifier.<br />

The flow rate is calculated based on the cross sectional area of the<br />

pipe. The measurement does not depend on the process liquid and<br />

its material properties such as density, viscosity and temperature.<br />

Two given outputs can be set to be switch, analogue or frequency. A<br />

dosing function can also be selected, where output 1 is set as switch<br />

NPN / PNP / PP and output 2 is set as control input.<br />

Overview of MIM’s significant characteristics:<br />

• Stainless steel design<br />

• Flow and temperature measurement<br />

• Monitoring, dosing and transmitter function<br />

• Dosing function with external control input<br />

• Coloured, multi-parameter configurable TFT-display, rotatable in<br />

90° steps<br />

• Bi-directional measuring<br />

• Intuitive setup menu via 4 optical touch keys<br />

• 2 configurable outputs (pulse- /frequency-/alarm- and analogue<br />

output)<br />

• Grand and resettable totaliser<br />

Contact INSTROTECH<br />

For more information on Kobold’s MIM Compact / Remote Stainless<br />

Steel Magnetic Inductive Flowmeter on 010 595 1831 or sales@<br />

instrotech.co.za<br />

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