Magnetic Coupling - Johnson Pump SPX FLOW TopGear GS Instruction Manual

For a non-pressurised quench:
• Check the level in the supply reservoir;
• Check the temperature of the quench liquid;
• Check the condition of the quench liquid by inspection: change the quench liquid in
case it is heavily contaminated with leaking fluid.
Note: Frequent contamination is an indication of an unacceptable shaft seal leakage,
which should be repaired.
For a pressurised quench:
•
Check the level in the supply reservoir;
•
Check the temperature of the quench liquid;
•
Check the pressure.
Take note: the quench liquid should always be pressurised while the pump is
running, including at start and at shut-off period.
• Check the condition of the quench liquid: change the quench liquid in case it is
contaminated with leaking fluid.
Note: Contamination of the liquid is an indication of irregular or faulty operation and
should be inspected. E.g. the mechanical seal at medium side may be leaking or may be
opened due to insufficient counter pressure of the quench liquid.
5.4

Magnetic coupling

• TG MAG pumps used in explosive environment must be equipped with a temperature
sensor on the separation can. (Position L2 see fig. 2).
• The temperature sensor must be connected and pre-set before the pump is started after
maintenance. Temperature settings of the sensor see under 1.6.2 and 1.6.4.
• Apply heat-conducting paste to the tip of the sensor in order to secure good heat
transmission
20
A.0500.601 – Atex IM -TG G/H/MAG/SRT/08.00 EN (01/2021)