IM-P071-02
CMGT Issue 3
14
HP70 Series Bimetallic Steam Trap
6.5 Reassembly:
Refer to Figure 5.
1.
Place the check valve spring and ball (
13
and
14
) into the body (
1
) and position them properly.
2.
Use a high temperature thread lubricant on the valve seat (
12
), adjustment screw threads and gasket
seating surfaces.
Put the valve seat gasket (
2
) in place and thread the valve seat (
12
) into the body (
1
).
Tighten to the recommended torque as specified, in Table 1.
3.
Install the valve opening spring.
4.
Install the valve and bimetallic element assembly (
3
).
5.
Slip the strainer screen (
4
) over the bimetallic element assembly with the rounded end uppermost.
6.
Install the cover gasket (
7
).
7.
Install the cover (
8
).
Note:
Ensure that the shaft of the bimetallic element assembly (
3
) fits into the adjustment screw tube
as the cover is put into position.
8.
Install the cover nuts (
9
) using the high temperature thread lubricant and tighten to the recommended
torque (see Table 1).
9.
To adjust for cold conditions (to be done on a trap without inlet or outlet pressure)
:
-
Turn the adjustment screw anticlockwise to bring the valve in contact with the valve seat (
12
- close
position)
Do not tighten
.
-
Again using the adjustment screw, open' the valve (off the valve seat
12
) by the number of clockwise
turns specified in Table 2 for the appropriate size trap. This method approximates factory settings.
10.
Tighten the locking gland nut (
6
) to the recommended torque (see Table 1) in order to lock and reduce
leakage past the adjustment screw.
Table 2
Setting (full turns clockwise)
4
¼
11.
Install the blind nut and gasket (
10
and
11
) and torque as specified in Table 1.
