
55
A.0500.351 – IM-TGH/07.02 EN (10/2015)
Symptom
Cause
Remedy
Rapid wear of the
mechanical seal
Viscosity too high
39 • Heat the pump.
• Install a double mechanical seal
Bad de-aerating/ dry running
40 • Fill pump with liquid
• Check position of relief valve or top cover.
Temperature too high
41 • Reduce temperature.
• Install suitable mechanical seal
Too long priming period/ dry running
42 • Reduce suction line.
• Provide dry running protection.
• Check maximum allowable dry running speed for
the mechanical seal.
Liquid is abrasive
43 • Filter or neutralise liquid.
• Install a double mechanical seal with hard seal
faces and barrier liquid.
Note!
If symptoms persist, the pump must be taken out of service immediately. Contact your local supplier.
3.20.1 Instructions for re-using and disposal
3.20.1.1 Re-use
Re-use or putting the pump out of service should only be undertaken after complete draining and
cleaning of the internal parts.
Note!
When doing so, observe adequate safety regulations and take environmental protection measures.
Liquids should be drained and following local safety regulations the correct personal equipment
should be used.
3.20.1.2 Disposal
Disposal of the pump should only be done after it has been completely drained.
Proceed according to local regulations.
Where applicable please disassemble the product and recycle the part’s material.
Summary of Contents for TG H15-50
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