Operating instructions

IM-P623-04 ST Issue 5
12
6.5 Reassembly: Refer to Figure 4, page 13.
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, page 9.
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, page 9).
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, page 9) in
order to lock and reduce leakage past the adjustment sc
rew.
Table 2
Trap series HP80 HP100 HP150 HP210
Setting (full turns clockwise) 3½ 4¼ 5 5¼
11. Install the blind nut and gasket (10 and 11) and torque as specified in Table 1, page 9.