A
saturation
B
D
Steam
curve
STS17.2 with single
upstream isolation
B
C
A - B Flanged ASME Class 300, screwed and socket weld.
A - C Flanged EN 1092 PN40.
A - D Flanged ASME Class 150.
Minimum allowable temperature
Maximum operating
PMO pressure for saturated
C
All other connections 17.5 bar g
TMO Maximum operating temperature
230°C @ 10 bar g
Minimum operating temperature
-10°C
Designed for a maximum cold hydraulic test pressure of 60 bar g
(approximate) in mm and kg
steam service
Isolation
Size and connection
Single
1⁄2" BSP, 1⁄2" NPT and
Single
3⁄4" BSP and 3⁄4" NPT
Single
3⁄4"SW
Single
1" BSP and 1" NPT
Single
1" SW
Single
1⁄2" ASME 150
Single
1⁄2" ASME 1300
Single
DN15 EN 1092
Single
3⁄4" ASME 1150
Single
3⁄4" ASME 1300
Single
DN20 EN 1092
Single
1" ASME 1150
Single
1" ASME 1300
Single
DN25 EN 1092
Double
1⁄2" BSP, 1⁄2" NPT and 1⁄2" SW
Double
3⁄4" BSP and 3⁄4" NPT
Double
3⁄4" SW
Double
1" BSP and 1" NPT
Double
1" SW
Double
1⁄2" ASME 1150
Double
1⁄2" ASME 1300
Double
DN15 EN 1092
Double
3⁄4" ASME 150
Double
3⁄4" ASME 300
Double
DN20 EN 1092
Double
1" ASME 150
Double
1" ASME 300
Double
DN25 EN 1092
Dimension mm
A
B
C
D
Weight kg
3.60
3.53
3.54
3.71
3.86
4.45
4.98
5.12
4.67
5.98
5.74
4.96
6.64
6.24
5.32
5.25
5.26
5.43
5.58
6.17
6.70
6.84
6.39
7.70
7.46
6.68
8.36
7.97
ASME 150
PN40
PN40
PN40
PN40
PN40
PN40
D
C
T
e
m
p
e
r
a
t
u
r
e
°
C
Pressure bar g
The product must not be used in this region.
System design conditions
PMA Maximum allowable pressure
TMA Maximum allowable temperature
PN40
40 bar g @ 120°C
230°C @ 10 bar g
-10°C
13.6 bar g
D
STS17.2 with double upstream isolation
1⁄2" SW
222
76
222
76
213
76
229
76
269
76
268
76
294
76
284
76
272
76
306
76
304
76
271
76
309
76
304
76
350
76
350
76
341
76
357
76
397
76
396
76
422
76
412
76
400
76
434
76
432
76
399
76
437
76
432
76
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
93
90
STS17.2 Stainless Steel Compact Pipeline Connector Steam Trapping Station
Page 2 of 3
B
A
A