Technical data Operating time (full stroke) Boiler house Blowdown vessels
2
0.25 - 0.6 seconds
Clean compressed air Non-corrosive gas
Operating media
DN25
BVA315S/14
0.0002 (N)m 3 / stroke
DN32
BVA320S/14
0.0006 (N)m 3 / stroke
Compressed air consumption @ 6 bar g
DN40 DN50
BVA325S/14 actuator
0.0008 (N)m 3 / stroke
DN65
BVA330S/14 actuator
0.0011 (N)m 3 / stroke
LSB31 switch rating
10 A 250 Vac
Protection rating
IP67
Switch sensor
Mechanical 2 - SPDT
2.9 18
Pressure / temperature limits ABV21i
The product must not be used in this region.
ABV40i
Steam saturation curve
Steam saturation curve
Pressure bar g
Pressure bar g
Valve
ABV21i
PN40
Body design conditions
ABV40i
ASME 300
ABV21i
40 bar g @ 120 °C
PMA Maximum allowable pressure
ABV40i
51 bar g @ 38 °C
TMA Maximum allowable temperature
260 °C @ 0 bar g
Minimum allowable temperature
-29 °C
PMO Maximum operating pressure for saturated steam service
17.25 bar g
TMO Maximum operating temperature
260 °C @ 0 bar g
Minimum operating temperature ( Note: For lower operating temperatures consult Spirax Sarco)
-29 °C
PMX Maximum differential pressure is limited to the PMO
ABV21i
60 bar g
Designed for a maximum cold hydraulic test pressure of:
ABV40i
76.5 bar g
Actuator Maximum ambient temperature
80 °C
Minimum ambient temperature
0 °C
Maximum air supply pressure
8 bar g
Minimum air supply pressure
Depends on operating conditions
MV series solenoid Maximum ambient temperature
50 °C
Minimum ambient temperature
0 °C
TI-P405-45 EMM Issue 3
Page 2 of 7
ABV21i and ABV40i Air Actuated Boiler Blowdown Valves
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