Steam traps
Balanced pressure
Dimensions/weights (approximate) in mm and kg
Type
Size
A
B
C
D
E
Weight
Spare parts
BPT13A
1⁄2"
20
38
53
3⁄4"
27
40
62
BPT13S
1⁄2"
14
76
47
3⁄4"
20
80
53
BPT13UA
1⁄2"
20
67
53
3⁄4"
27
75
62
BPT13US
1⁄2"
19
105
52
25
55
0.40
25
55
0.45
38
55
0.45
40
55
0.50
25
55
0.50
25
55
0.55
38
55
0.55
40
55
0.60
The spare parts available are shown in solid outline. Parts drawn
in broken line are not supplied as spares.
Available spares
Maintenance kit
Cap gasket
Earlier models
Current models
3, 4, 5, 6, 7, 8, 9
(packet of 3)
3
(packet of 3 'O' rings)
3
Note: Earlier models were fitted with conventional gaskets.
3⁄4"
22
D
C
A
Current models are fitted with an 'O' ring to seal the cap.
Screen
(packet of 3)
How to order spares
3, 9
115
57
E
D
E
Always order spares by using the description given in the column
headed 'Available spares' and state the size, model number and
capsule reference.
Example: 1 - Capsule and seat assembly for a Spirax Sarco 1⁄2"
BPT13S balanced pressure thermostatic steam trap with screwed
BSP connections. Brass body with internal strainer screen and
'STD' fill capsule for operation approximately 12°C below steam
saturation temperature.
2
(not an available
spare)
3
B PT13UA
BPT13S
C
A
A
B
B
D
E
D
E
C
A
BPT13A
C
BPT13US
B
B
5
4
6
7
9
8
Capacities
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Differential pressure bar (x 100 = kPa)
Hot water capacity
Cold water capacity
Safety information, installation and maintenance
For full details see the Installation and Maintenance Instructions
(IM-P122-02) which is supplied with the product.
Installation note:
The trap is designed for installation with the capsule in a horizontal
plane with the cap at the top, preferably with a drop leg immediately
proceding the trap.
Disposal
This product is recyclable. No ecological hazard is anticipated with
the disposal of this product provided due care is taken. However,
if the recycling process involves a temperature approaching
315°C, caution is advised regarding decomposition of the
fluorocarbon rubber component.
How to order
Example: 1 off Spirax Sarco 1⁄2" BPT13AX balanced pressure
thermostatic steam trap with screwed BSP connections. Brass body
with internal strainer screen and 'STD' fill capsule for operation
approximately 12°C below steam saturation temperature.
Recommended tightening torques
7
Seat
TI-P122-01 ST Issue 6
BPT13 Brass Balanced Pressure Thermostatic Steam Trap
Item Part
2
Cap
or
mm
N m
50 - 60
90 - 110
35 - 40
'O' ring
Gasket
50 A/F
50 A/F
17 A/F
5.2.2
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