1, steam trap charge life is too short.
2, trap performance has expired, and the selection does not match the actual load.
3, the most widely used as a general thermodynamic disc trap, its energy-saving effect is the worst, but compared with the inverted bucket traps, very short-lived.
4, easy action bimetallic trap unstable.

Second, the trap selection techniques:

Changes in the new "guidance" in the selection table, including traps. Trap selection techniques:

1, inverted bucket traps:
As head of all process load and the steam trap of the preferred line, the need for steam trap all occasions.
2, float thermostatic steam traps:
For process hydrophobic, especially in the control load 3.5 kg less (50psig) for applications or air content, inverted bucket traps installed the BALL VALVE in question.
3, balanced pressure steam traps:
Unimportant for heating or heating system.
4, Bimetal Thermostatic Traps:
For the heating system with heat pipes or low temperature or frost conditions. The types of traps can maximize the use of condensation water was hot or prevent product overheating. The body is stainless steel.
5, thermodynamic disc traps:
Previous experience has shown that as long as its performance is good, can be used as an alternative to the inverted bucket trap, the pressure of 17 kg of steam heat pipe on the head and with limited use, or as a replacement product for a higher vapor pressure. Because of its low energy efficiency, life is short, not recommended (and, in Huddersfield and Grangemouth plant is not allowed.)
6, in the heat less demanding situations, replace the trap with a thermostatic trap thermal power will increase the energy efficiency disc, while life assurance.
7, mechanical traps (ie, inverted bucket traps and float) in terms of condensate load large or small case load can be guaranteed free of steam condensate, and thermostatic steam trap when the load increases to the accumulation of X431 diagun water.

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