VBA40A-T04GN-Z SMC Corporation, VBA40A-T04GN-Z Datasheet - Page 9

• Manufacturer Part Number: VBA40A-T04GN-Z
• Description: BOOSTER REGULATOR, 1/2 NPTF, HANDLE OPERATED, PRESSURE GAUGE, PSI, SILENCER
• Manufacturer: SMC Corporation

Specifications of VBA40A-T04GN-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
• Lead Free Status / Rohs Status: RoHS Exempt Product

Construction/Working Principle
The IN air passes through the check valve to booster chambers A and B. Meanwhile, air is supplied to drive chamber B via the governor and the switching
valve. Then, the air pressure from drive chamber B and booster chamber A are applied to the piston, boosting the air in booster chamber B. As the piston
travels, the boosted air is pushed via the check valve to the OUT side. When the piston reaches to the end, the piston causes the switching valve to switch,
so that drive chamber B is in the exhaust state and drive chamber A is in the supply state respectively. Then, the piston reverses its movement, this time,
the pressures from booster chamber B and drive chamber A boosts the air in booster chamber A and sends it to the OUT side. The process described
above is repeated to continuously supply highly pressurized air from the IN to the OUT side. The governor establishes the outlet pressure by handle opera-
tion and pressure adjustment in the drive chamber by feeding back the outlet pressure.
Construction/Replacement Parts
VBA111
Replacement Parts/Kit Part No.
Place an order with the following applicable kit part number.
The kit includes the parts from q to y and a grease pack.
∗ The grease pack has 10 g of grease.
∗ Make sure to refer to the procedure for maintenance.
No.
—
1
2
3
4
5
6
q
Description
Piston seal
Governor assembly
Check valve
Gasket
Rod seal
Mounting screw
Grease pack
Drive
chamber A
VBA1111
Switching valve
0
1
Kit part no.
y
Model
r
Drive
chamber B
Governor
E
Model
OUT (Outlet)
Check valve
Booster chamber B
IN (Inlet)
KT-VBA1110-2
w
VBA111 -02
VBA111 -02
Booster
chamber A
Piston
2
8
1
e
0
1
0
1
t
Drive
chamber A
Switching valve
VBA1110, VBA20A, 40A, 43A
Booster
chamber A
VBA20A, 22A,
VBA40A, 42A, 43A
t
q
Governor
E OUT
KT-VBA20A-1
y r
VBA20A-03
VBA22A-03
VBA20A-03
VBA22A-03
(Outlet)
Quantity
Booster Regulator
Booster Regulator
2
1
4
2
1
8
1
Check valve
IN (Inlet)
Booster chamber B
Drive
chamber B
Piston rod
w e
Piston
Series
Series
KT-VBA40A-1
VBA40A-04
VBA42A-04
VBA43A-04
VBA40A-04
VBA42A-04
VBA43A-04
Air-operated type
Air-operated type
VBA22A, 42A
VBA22A, 42A
12
Pilot pressure
1
2
VBA
VBA
6