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◘ Optional extras
Insulating Cover: - an insulating cover to prevent the trap
being unduly influenced by excessive heat loss
such as when subjected low outside temperatures,
wind, rain etc.
◘ Installation
Preferably fitted in a horizontal pipe because of the
disc balanced but can be fitted in other positions.
◘
Discharge
Capacities
 |
Recommended Tightening Torques
| Item |
 |
Nm |
2(TD42L)
2(TD42H) |
36
41 |
135-150
135-150 |
| 5 |
32
M28 |
250-275 |
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◘
Spare Parts
The spare parts available are shown as below chart:
|
Available Spare |
Specification |
No. |
| Cap |
(TD42 L
or TD42 H) |
1 |
| Disc |
(TD42 L
or TD42 H) |
2 |
| Strainer Screen |
(TD42 L
or TD42 H) |
3 |
| Strainer Cap |
(TD42 L
or TD42 H) |
4 |
|
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◘ How to Service
Remove insulating cover if fitted and unscrew cap
using spanner. Do not use stillsons or a wrench of
similar type which may cause distortion of the cap. If the disc and body seating faces are only slightly
worn they can be refaced by lapping individually on a
flat surface such as a surface plate. A figure of eight
motion and a little grinding compound gives the best
results. lf the wear is too great to be rectified by
simple lapping, the seating faces on the body must
be ground flat and then lapped and the disc replaced
by a new one. The total amount of metal removed in
this way should not exceed 0.25 mm (0.010" ). When
re-assembling the disc is normally placed in position
with the grooved side in contact with body seating
face. Screw on cap, no gasket is required but a
suitable high temperature anti-seize grease should be
applied to the threads. ◘ To clean or replace strainer
Unscrew strainer cap using spanner, withdraw screen
and clean, or if damaged replace with new one. To re-assemble insert screening cap, then screw cap into place. No gasket is required but a fine smear
of molybdenum disulphide grease should be applied to
the threads.
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