Case Details and Solutions
When the Forbes Marshall engineer visited the
customer plant for the first time, he was taken aback
to note the loss of live steam and extreme water
hammer in the 15 m3 through the condensate line.
On checking, it was noticed that 4 of the 5 installed
traps were either water logged or leaking. The process
area as well was not equipped with the right type of
traps, and 40NB bypass valves were kept in open
After doing a detailed root cause analysis, a proposal
was made to the customer for improvements in the
steam system improvement. It was suggested that
the drain modules be implements in the distribution
network and conventional TD traps be replaced by the
Forbes Marshall Compact Module Thermodynamic
Trap for the mainline. Installation of a Steam
Operated Pump Trap in the pasteuriser area was also
suggested to completely eliminate the need of
opening the bypass valve.
The customer accepted the recommendations, and
implemented suggestions for mainline improvement
in stage 1. With installation of the CMTD, customer
was happy to note that there was no more steam leak
from the mainline, thereby reducing steam loss
Forbes Marshall conducted a detailed to identify problem areas, and corrective action taken accordingly :
Proper drain modules implemented in the steam distribution network.
Conventional thermodynamic traps replaced with 11 nos. compact module thermodynamic trap, model CMTD42M-F.