Pressure / temperature limits
A
B
C
Pipeline ancillaries
Sight glasses
D
E
F
SGC40
Carbon steel
SGS40
Stainless steel
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Pressure bar g
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Steam
saturation
curve
B
C
A
B
C
D
E
E
D
F
B
C
F
Steam
saturation
curve
E
D
F
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Pressure bar g
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The product must not be used in this region.
A-B-B Flanged JIS 10 and KS 10.
A-C-C Flanged ASME 150.
A-D-D Flanged EN 1092 PN40.
A-E-E Flanged JIS 20 and KS 20.
A-F-F Screwed BSP, NPT, Sanitary clamp, Socket weld and Flanged ASME 300.
Body design conditions
PMA Maximum allowable pressure
TMA Maximum allowable temperature
Minimum allowable temperature
PMO Maximum operating pressure for saturated steam service
TMO Maximum operating temperature
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco
Designed for a maximum cold hydraulic test pressure of:
SGC40
SGS40
SGC40
SGS40
SGC40
SGS40
SGC40
SGS40
SGC40
SGS40
SGC40
SGS40
PN40
40barg@280°C
40 bar g @ 178 °C
280°C@40barg
280 °C @ 32.5 bar g
-10 °C
31.3 bar g @ 238 °C
28 bar g @ 230 °C
14 bar g @ 198 °C
22.5 bar g @ 220 °C
40barg@250°C
33barg@240°C
14 bar g @ 120 °C
34barg@120°C
280°C@40barg
280 °C @ 32.5 bar g
-10 °C
60 bar g
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7.9.12
PN40
ASME 150
ASME 300
JIS 10 and KS 10
JIS 20 and KS 20
TI-P130-28 CMGT Issue 10
Page 3 of 5
SGC40 and SGS40 Sight Glasses
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