VBA40A-T04-Z SMC Corporation, VBA40A-T04-Z Datasheet - Page 6

• Manufacturer Part Number: VBA40A-T04-Z
• Description: BOOSTER REGULATOR, 1/2 NPTF PORT, HANDLE OPERATED TYPE, PSI
• Manufacturer: SMC Corporation

Specifications of VBA40A-T04-Z

• Brand/series: VBA Series
• Flow Rate: 1900 SCFM
• Pressure Adjustment: Handle Operating
• Pressure Increase Ratio: Twice
• Pressure, Operating: 1 MPa
• Proof Pressure: 1.5 MPa
• Size, Port: 1⁄2 in.
• Temperature, Ambient: 2 to 50
• Thread Type: NPTF

Series
Flow-rate Characteristics
Pressure
Characteristics
Charge Characteristics
VBA10A
b
With the pressure increase ratio from 1.4 to 1.9,
the charge time of 23 – 6 = 17 sec. (t) is given
by the graph. Then, the charge time (T) for a
10 L tank:
T = t x
3
P
P
VBA10A
The time required to charge pressure in the
tank from 0.7 MPa to 0.95 MPa at 0.5 MPa
supply pressure:
2
1
=
1.05
0.95
0.85
1.5
0.5
1.1
1.0
0.9
0.8
60
50
40
30
20
10
2
1
0
1.0
0.7
0.5
0
0
10
V
Outlet air flow rate (L/min (ANR))
= 17 x
= 1.4
0.4
Pressure increase ratio P
1.2
100
VBA
Inlet pressure (MPa)
0.5
10
10
1.4
P
P
Flow rate: 20 L/min (ANR)
= 17 (s).
0.6
200
Outlet pressure: 1.0 MPa
2
1
Inlet pressure: 0.7 MPa
Set point
=
0.7
0.95
0.5
1.6
300
0.8
= 1.9
P
1
1.8
= P
2
/P
0.9
(Representative
2
400
1
2.0
value)
1
b
With the pressure increase ratio from 1.6 to 2.0,
the charge time of 11.5 – 3.8 = 7.7 sec. (t) is
given by the graph. Then, the charge time (T)
for a 100 L tank:
T = t x
Flow-rate Characteristics
Pressure
Characteristics
Charge Characteristics
VBA20A, 22A
P
P
VBA20A, 22A
The time required to charge pressure in the
tank from 0.8 MPa to 1.0 MPa at 0.5 MPa
supply pressure:
2
1
=
1.04
1.02
0.98
0.96
0.94
1.0
0.8
0.6
0.4
0.2
1.0
12
11
10
9
8
7
6
5
4
3
2
1
0
1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0
0.8
0.5
10
0
0
V
Outlet air flow rate (L/min (ANR))
= 7.7 x
= 1.6
0.4
200
Pressure increase ratio P
Inlet pressure (MPa)
0.5
400
100
10
P
P
Flow rate: 20 L/min (ANR)
0.6
Outlet pressure: 1.0 MPa
2
1
= 77 (s).
P
600
Inlet pressure: 0.7 MPa
1
Set point
=
= 0.3 MPa
0.7
1.0
0.5
P
800
1
= 0.4 MPa
= 2.0
0.8
P
1000 1200
1
= 0.5 MPa
2
/P
0.9
(Representative
1
value)
1
Flow-rate Characteristics
Pressure
Characteristics
Charge Characteristics
VBA40A, 42A
b
With the pressure increase ratio from 1.6 to 2.0,
the charge time of 3.5 – 1.1 = 2.4 sec. (t) is given
by the graph. Then, the charge time (T) for a
100 L tank:
T = t x
P
P
VBA40A, 42A
The time required to charge pressure in the
tank from 0.8 MPa to 1.0 MPa at 0.5 MPa
supply pressure:
2
1
=
1.04
1.02
0.98
0.96
0.94
1.0
0.8
0.6
0.4
0.2
1.0
5
4
3
2
1
0
1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0
0.8
0.5
0
0
10
V
Outlet air flow rate (L/min (ANR))
= 2.4 x
= 1.6
0.4
Pressure increase ratio P
500
Inlet pressure (MPa)
0.5
100
10
P
P
P
Flow rate: 20 L/min (ANR)
0.6
Outlet pressure: 1.0 MPa
1
2
1
= 24 (s).
Inlet pressure: 0.7 MPa
= 0.3 MPa
1000
Set point
=
0.7
1.0
0.5
= 2.0
0.8
P
P
1500
1
1
= 0.5 MPa
= 0.4 MPa
2
/P
0.9
(Representative
1
2000
value)
1