Flanges
PMA
barg@ °C
TMA
°C @ bar g
ASME 150
ASME 300
ASME 600
ASME 900
ASME 1500
ASME 2500
VAD4
PN40
PN63
PN100
PN160
PN250
PN320
PN400
19.6 @ 38 °C 425 °C @ 5.5
51.5 @ 38 °C 425 °C @ 28.8
102.1 @ 38 °C 425 °C @ 57.5
153.2 @ 38 °C 425 °C @ 86.3
255.3 @ 38 °C 425 °C @ 143.8
425.5 @ 38 °C 425 °C @ 239.7
40.0 @ 50 °C 400 °C @ 23.8
63.0 @ 50 °C 400 °C @ 37.5
100.0 @ 50 °C 400 °C @ 59.5
160.0 @ 50 °C 400 °C @ 95.2
250.0 @ 50 °C 400 °C @ 148.8
320.0 @ 50 °C 400 °C @ 190.4
400.0 @ 50 °C 400 °C @ 238.0
VAD6
(316)
ASME 150
ASME 300
ASME 600
ASME 900
ASME 1500
ASME 2500
PN40
PN63
PN100
PN160
PN250
PN320
PN400
19.0 @ 38 °C 538 °C @ 1.4
49.6 @ 38 °C 538 °C @ 25.2
99.3 @ 38 °C 538 °C @ 50.0
148.9 @ 38 °C 538 °C @ 75.2
248.2 @ 38 °C 538 °C @ 125.5
413.7 @ 38 °C 538 °C @ 208.9
40.0 @ 100 °C 580 °C @ 25.0
63.0 @ 100 °C 580 °C @ 39.5
100.0 @ 100 °C 580 °C @ 62.7
160.0 @ 100 °C 580 °C @ 100.3
250.0 @ 100 °C 580 °C @ 156.7
320.0 @ 100 °C 580 °C @ 200.6
400.0 @ 100 °C 580 °C @ 250.8
VAD8
(A182 F11 Cl.2)
ASME 150
ASME 300
ASME 600
ASME 900
ASME 1500
ASME 2500
PN40
PN63
PN100
PN160
PN250
PN320
PN400
19.8 @ 38 °C 538 °C @ 1.4
51.7 @ 38 °C 538 °C @ 14.9
103.4 @ 50 °C 538 °C @ 29.8
155.1 @ 50 °C 538 °C @ 44.7
258.6 @ 50 °C 538 °C @ 74.5
430.9 @ 50 °C 538 °C @ 124.1
40.0 @ 300 °C 490 °C @ 27.2
63.0 @ 300 °C 490 °C @ 42.8
100.0 @ 300 °C 490 °C @ 68.0
160.0 @ 300 °C 490 °C @ 108.8
250.0 @ 300 °C 490 °C @ 170.0
320.0 @ 300 °C 490 °C @ 217.6
400.0 @ 300 °C 490 °C @ 272.0
4.8.27
Control valves
Desuperheaters
Pressure / temperature limits:
The Spirax Sarco VAD variable area desuperheater has a carbon steel body as standard but can be produced in any material grade to
special order.
'4' denotes a carbon steel desuperheater
'6' denotes an austenitic stainless steel desuperheater
'8' denotes an alloy steel desuperheater
Please note that the pressure and temperature limits for the VAD product range is governed by the flange connection of choice:
Page 4 of 7
TI-P451-01 CH Issue 3
VAD Variable Area Desuperheaters
