Capacities
Spare parts
The spare parts available are shown in solid outline. Parts drawn
in broken line are not supplied as spares.
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Dimensions/weights (approximate) in mm and kg
Size
A
B
E
G
H
J
K
L
Weight
3
/
8
"
41
78
55
85
41
57
57
38
0.75
1⁄2"LC 41 78
55
85
41
57
57
38
0.75
1⁄2"
41
78
55
85
41
57
57
38
0.80
Available spares
Disc and screen
Strainer screen and gasket
Strainer cap gasket (packet of 3)
Insulating cover
How to order spares
3, 4
4, 6
6
7
C
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7
5.7.16
H
Withdrawal distance
for screen
A
E
B
K
Withdrawal distance for
L
insulating cover
J
3
Differential pressure bar (x 100 = kPa)
Safety information, installation and maintenance
For full details see the Installation and Maintenance Instructions
(IM-P068-24) supplied with the product.
Installation note:
The TD42A is designed for installation with the capsule in a
horizontal plane with the cover at the top.
It is recommended that a non-return valve is fitted when discharging
condensate into return lines where backpressure is experienced. It
is also recommended that a diffuser is fitted when discharging to
atmosphere.
For ease and maintenance, consideration should be given to fitting
isolation valves upstream and downstream of the steam trap.
Disposal
The product is recyclable. No ecological hazard is anticipated
with the disposal of this product, providing due care is taken.
How to order
Example: 1 off 1⁄2" Spirax Sarco TD42A thermodynamic steam
trap having screwed BSP connections.
5
Recommended tightening torques
Steam traps
Thermodynamic
Withdrawal
G
distance for cap
4
6
5
TD42A Thermodynamic Steam Trap
M28
TI-P151-04 ST Issue 5
Always order spares by using the description given in the column
head 'Available spares' and state the size and type of trap.
Example: 1 - Strainer screen and gasket for a Spirax Sarco 1⁄2" LC
TD42A thermodynamic steam trap.
2
Item
2
(
or
mm
N m
135 - 150
180 - 200
170 - 190
", 1⁄2" LC)
36
(1⁄2")
41
32
