Steam traps Balanced pressure
8
Pressure/temperature limits (ISO 6552)
Pressure psi g
0
29
58
87
116
145
150 177
351 302
The product must not be used in this region. The product should not be used in this region as damage to the internals may occur. Note: For hygienic/sanitary clamp ends the maximum pressure/temperature may be restricted by the gasket or sanitary clamp used. Please consult Spirax Sarco.
212
100
Steam saturation curve
122
50
32
0
2
4
6
8
10
0
Pressure bar g
Body design condition
PN10
PMA Maximum allowable pressure
10 bar g @ 140 °C
145 psi g @ 284 °F
TMA Maximum allowable temperature
177 °C @ 9.2 bar g
351 °F @ 139 psi g
Minimum allowable temperature
-10 °C
14 °F
PMO Maximum operating pressure for saturated steam service
6 bar g
87 psi g
TMO Maximum operating temperature
165 °C @ 6 bar g
329 °F @ 87 psi g
Minimum operating temperature
0 °C
32 °F
Designed for a maximum cold hydraulic test pressure of:
15 bar g
218 psi g
Note: Refer to IM-P180-31 for instruction on how to perform hydraulic testing.
Capacities (in accordance with ISO 7842)
BH - High capacity BL - Low capacity
Differential pressure psi (x 6.89 = kPa)
29 44 58 87 72.5
1.5
3
4
7 10 15
13227 11023
BH
Cold water capacity Cold water capacity Hot water capacity Cold water capacity Hot water capacity Hot water capacity
BH
8.2 38
BH
8818 6613
BH
BH BL BL and BH
A B
4409
C
2204 1984 1763 1543 1322 1102
A DN25 (1"), DN32 and DN40 (1½") B DN20 (¾") C DN8, DN10 and DN15 (½") D DN25 (1"), DN32 and DN40 (1½") E DN20 (¾") F DN8, DN10, DN15 (½"), DN20 (¾"), DN25 (1"), DN32 and DN40 (1½") G DN8-BL, DN10-BL, DN15-BL (½"), DN20-BL (¾"), DN25-BL (1") , DN32-BL, DN40-BL (1½"), DN8-BH, DN10-BH and DN15-BH (½")
D E
F
881 661
G
Differential pressure bar (x 100 = kPa)
TI-P180-30 CMGT Issue 17
Page 4 of 6
BT6-B and BT6-B Food+ Sanitary Balanced Pressure Thermostatic Steam Trap
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