Boiler house TDS blowdown controls
2
Pressure/temperature limits – BCV4_
Body design conditions:
PN40, JIS / KS 20K
ASME class 150, class 300
EN
PN40
40 bar g @ 50 °C
580 psi g @ 122 °F
ASME 150
19.6 bar g @ 38 °C
284 psi g @ 100 °F
ASME
PMA Maximum allowable pressure
ASME 300
51.1 bar g @ 38 °C
741 psi g @ 100 °F
JIS / KS
JIS / KS 20K
34 bar g @ 120 °C
493 psi g @ 248 °F
EN
PN40
300 °C @ 27.6 bar g
572 °F @ 400 °F
ASME 150
425 °C @ 5.5 bar g
797 °F @ 80 psi g
ASME
TMA Maximum allowable temperature
ASME 300
425 °C @ 28.8 bar g
797 °F @ 418 psi g
JIS / KS
JIS / KS 20K
300 °C @ 20 bar g
572 °F @ 290 psi g
2.4 10
EN
PN40
-10 °C
14 °F
ASME 150
-29 °C
-20 °F
ASME
Minimum allowable temperature
ASME 300
-29 °C
-20 °F
JIS / KS
JIS / KS 20K
-10 °C
14 °F
EN
PN40
31.1 bar g @ 237 °C
451 psi g @ 458 °F
ASME 150
13.9 bar g @ 197 °C
201 psi g @ 386 °F
Maximum operating pressure for saturated steam service
ASME
PMO
ASME 300
41.7 bar g @ 254 °C
605 psi g @ 489 °F
JIS / KS
JIS / KS 20K
30.6 bar g @ 236 °C
443 psi g @ 456 °F
EN
PN40
300 °C @ 27.6 bar g
572 °F @ 400 psi g
ASME 150
425 °C @ 5.5 bar g
797 °F @ 80 psi g
ASME
TMO Maximum operating temperature
ASME 300
425 °C @ 28.8 bar g
797 °F @ 418 psi g
JIS / KS
JIS / KS 20K
300 °C @ 20 bar g
572 °F @ 290 psi g
EN
PN40
-10 °C
14 °F
ASME 150
-29 °C
-20 °F
ASME
Minimum operating temperature
ASME 300
-29 °C
-20 °F
JIS / KS
JIS / KS 20K
-10 °C
14 °F
Designed for a maximum cold hydraulic test pressure of:
1.5 x PMA of the relative end connection of choice
TI-P403-102 EMM Issue 9
Page 4 of 12
BCV Blowdown Control Valves DN15 to DN50 (½" to 2")
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