9
7.
Maintenance Guidelines:
Note:
Before undertaking any maintenance of the product it must be isolated from
both supply line and return line and ensure pressure is normalized to atmosphere.
The product should then be allowed to cool. When re-assembling ensure that all joint
faces are clean.
7.1. Routine and preventive maintenance:
Please refer to the maintenance schedule mentioned in the table below to undertake
routine maintenance of the Forbes Marshall Thermodynamic Trap.
7.2. Tool Kit:
To carry out maintenance of the Forbes Marshall thermodynamic trap [FMTD54M] refer
the tools mentioned in the table below.
7.3. Recommended tightening torques:
Table 1: Recommended tightening torque
Size
Component
Tool used and size
DN 15/20/25
Strainer Cap
Open spanner 26 mm (A/F)
Stud
Threaded Sleeve
Item
Component
Torque Range
2
Cap
180 - 200 Nm
5
Strainer Cap
170- 190 Nm
No.
Parameters to be checked
Frequency for checking various parameters
Immediate Daily Weekly Monthly Quarterly
Half
Yearly
Annually
1
Test High Pressure steam traps
(17.5 bar g and above)
Y
2
Test Medium Pressure steam traps
(3.5 bar g to 17.5 bar g)
Y
3
Test Low pressure steam traps
( below 3.5 bar g)
Y
4
Repair / Replace steam traps - when
testing shows leaks
Y
5
Clean internals / strainer of FMTD54M
Y
6
Visual Inspection for leakages
Y
7
Arresting any other leaks
Y
Nut
Open spanner 17 mm (A/F)
Item No.
Part
Torque Range
7
Strainer Cap
26mm A/F
110 – 130 Nm
8
Stud
M10 X 1.5
20 – 25 Nm
9
Nut
17mm A/F
45 – 50 Nm
FMTD54M
