SMC Networks VBA10A User manual

VBA-OM-L007-E
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OPERATION MANUAL VBA-M3
Booster regulator
VBA1 A / 2 A / 4 A Series
Contents
● Descriptions and specifications of the components
● Ope ration Precautions
● Before requesting service
Thank you for choosing this SMC product. This operation manual provides
essential information to ensure its optimum performance and lifespan.
Keep this manual accessible and refer to it if problems occur. Please refer
to the latest catalogue, drawings and maintenance procedures for product
configuration and specifications.
●Descriptions and specifications of the components
Specifications
Model
VBA10A
VBA11A
VBA20A
VBA40A
VBA22A
VBA42A
VBA43A
Pressure
increase ratio
MAX.2
2 to 4
MAX.2
Fluid
Compressed air
Set pressure
range
0.2 to 2.0MPa
0.2 to 1.0MPa
0.2 to
1.6MPa
Supplied
pressure range
0.1 to 1.0MPa
Proof pressure
3MPa
1.5MPa
2.4MPa
Ambient and
operating fluid
temperature
2 to 50oC
(No freezing)
Lubrication
Lubrication is not allowed
Mounting posture
Horizontal
Governor*
(Pressure adjusting
mechanism)
Handle-operated type
Air-operat
ed type
Handle-op
erated type
Relief function
*The default pressure of the handle is 0. When the air is supplied, the
pressure is relieved.
●Handling Precautions
To ensure safe and optimum operation, confirm the product’s
specifications before use. Operating the product out of the scope of its
specifications may cause failure or accident.
Operating Location
CAUTION
Do not install the product where it can be exposed to rain or direct
sunlight.
Do not install the product where it can be affected by vibration.
Installation
Since the booster regulator vibrates due to the reciprocation of the
internal piston, mount 4 bolts onto the mounting holes and tighten them
completely.
Model
Bolt size
Tightening torque
VBA1A
M5
3Nm
VBA2A, 4A
M10
24Nm
CAUTION
(1)Lifting
When transporting this product, hold it lengthwise with both hands.
Never hold it by the black handle that protrudes from the centre because
the handle could become detached from the body, causing the body to
fall and leading to injury.
(2)Installation
Mount the booster regulator so that the tie-rod/cover are placed
horizontally.
A malfunction will occur if it is vertical.
If vibration of the booster regulator may cause problems, take
countermeasures in your application to prevent vibration.
Ensure there is enough space for maintenance.
When connecting the booster regulator with the VBAT tank, be sure to
read the operation manual and use the accessories provided with the
tank.
Key
O: Can be used
X: Cannot be used
OO
X
Piping
Connect IN port with the air source, and OUT port with an actuator.
Install a silencer or exhaust cleaner at the exhaust port of the booster
regulator to reduce noise, if necessary.
Booster
regulator model
Exhaust cleaner
model No.
Installation
distance
VBA1A
AMC310-03
200mm
VBA2A
AMC510-06
270mm
VBA4A
AMC610-10
300mm
* Separate piping should be prepared to
connect the booster regulator with the
exhaust cleaner.
* If the tank is not used, mount the booster
regulator away from the floor in accordance
with the installation distance stated above.
The elbow for silencer (option) can be used only for mounting a silencer
to the exhaust port. Do not use it for the IN port and the OUT port.
Prepare piping separately to exhaust remotely by connecting pipes to
the exhaust port.
OXXX
When preparing piping for the booster regulator, always fasten the
threads with correct tighten torque as shown in the below table.
Port size
1/8
1/4
3/8
1/2
Tightening torque
7 to 9N ・ m
12 to 14N ・ m
22 to 24N ・ m
28 to 30N ・ m
When mounting the silencer and the elbow for silencer, hold the end of
the body (the side without thread) and screw it in. When the screw
becomes slightly tight, tighten it further for approximately 1/4 turn with a
spanner whose size is appropriate for the width across flat of the
hexagon head.
CAUTION
(1)Flushing ··· Care should be taken especially for the precision parts.
Before piping, flush pipes to remove cutting chips, cutting oil, and
dust which may cause malfunction or lower the durability of the
booster regulator. If they enter inside the booster regulator, they
could cause the booster regulator to malfunction or its durability
could be affected
(2)Piping size
Ensure that the piping size corresponds to the port size to achieve the
full function of the booster regulator. If the piping is too small, the
function will be reduced due to the pressure loss.
(3)Exhaust air
Individual piping is necessary for exhaust air of the booster regulator.
Using common piping for exhaust may cause malfunction due to back
pressure.
If inlet pressure and outlet pressure are set close together, air may leak
from the exhaust port. This is normal. This occurs when the booster
regulator is on standby for switching.
(4)Particle generation
There is a sliding part inside the booster regulator, and it generates
particles. Install an air filter or mist separator at the outlet if necessary.
The booster regulator contains lubrication (grease / turbine oil) in the
exhaust air.
Air Supply
CAUTION
(1)Quality of Air Source ··· Take care especially for precision parts.
Connect a mist separator at the inlet of the booster regulator. If the
quality of compressed air is not fully controlled, it may cause a
malfunction or deterioration of durability.
Although a wire mesh is installed at the IN port of the booster regulator
to prevent simple particles from entering, it cannot continuously filter
particles or separate drainage. Make sure to install a mist separator
(modelAM Series) at the inlet of booster regulator.
If dry air (atmospheric pressure dew point –23°C or less) is used, the
life expectancy may be shortened because dry air will accelerate
evaporation of grease inside.
If necessary connect the lubricator only at the outlet. Accumulation of
oil in the booster regulator may cause malfunction.
AMC
Governor
IN port
OUT port
IN pressure
gauge
OUT pressure gauge
Relief hole
Mounting holes
Handle
Bonnet
Tank connecting hole
Exhausting
air
EXH
EXH
IN
OUT

VBA-OM-L007-E
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If the product is used in a condition in which large amounts of drainage
remain in the filter, mist separator, and tank, drainage may flow out the
booster cause malfunction. Exhaust drainage from filters once a day to
prevent such failure. For the auto-drain type, also check the operation
once a day.
Pneumatic Circuit
WARNING
(1)Against abnormal outlet pressure
When it is foreseen that an unexpected failure of the booster
regulator world cause a significant damage to your system, please
take appropriate safety measure in your system design.
If the inlet pressure fluctuation is large, the outlet pressure maybe
over the setting range of governor, and that will result in an
unexpected accident. Take appropriate safety measures.
(2)Dealing With Residual Pressure
To quickly exhaust residual pressure downstream of the booster
regulator for maintenance, connect a 3-way valve to the OUT port of the
booster regulator (see drawing below). Please note that the booster
regulator downstream pressure cannot be exhausted through the
booster even if the 3-way valve is installed in the IN port of the booster
regulator.
After exhausting the downstream piping, exhaust supply pressure at
the booster regulator inlet side using the residual pressure relief valve
upstream the booster regulator .This will stop unnecessary operation
and prevent malfunction.
Pressure Control
(1)Handle operation type
To increase the set the pressure by unlocking the handle slightly pulling
it up, and, rotating it in the (+) direction of the arrow. To decrease the set
pressure after the pressure has been set, unlock the handle, and then
rotate the handle in the (-) direction of the arrow.
The handle is locked when it is pushed
down(PUSH), and released when it is pulled
up (PULL).
The residual air will be released from the
area of the handle, due to the relief
construction of the handle.
(2)Air operated type
Connect a regulator to the pilot port as
shown below.
AR20 and AW2000 are recommended for
the pilot regulator.
As shown in the drawing on the right, the
outlet pressure is twice of pilot pressure at
zero flow rate consumption.
When booster supply pressure is 0.4MPa
and pilot pressure is 0.2MPa to 0.4MPa the
outlet pressure is 0.4MPa to 0.8MPa at zero
flow rate.
WARNING
Operate the booster regulator within its
maximum operating pressure and set
pressure range.
Do not rotate the handle to a pressure
exceeding the max. set pressure.
Model
VBA1A
VBA2A, 4A
VBA43A
Maximum set pressure
2.0MPa
1.0MPa
1.6MPa
Do not supply 0.5MPa or more of pilot pressure for VBA22A and
VBA42A.When the inlet pressure becomes 0.5MPa or more, the outlet
pressure will increase and finally exceed the operating pressure range.
The lower limit of the set pressure should be the inlet pressure plus
0.1MPa or more. When the booster regulator is operated with the
minimum operating pressure (0.1MPa) or less, the directional control
valve may stop at the intermediate position.
CAUTION
The pressure of the handle is set to 0 before shipment. When the air is
supplied, the pressure is relieved.
It is not possible to reduce the pressure to the inlet pressure or less.
This product does not have a pressure regulator function.
There are upper and lower limits to the handle operation. If the handle
is rotated too far, it will break.
Selection
This product consumes air because it uses compressed air to boost the
pressure. The air consumption is approx. 1.2 times (ratio of intensified
pressure 2) and approx. 2.7 times (ratio of intensified pressure 4) as
much as air consumed on the outlet side. Therefore, inlet air supply
should be approx. 2.2 times (ratio of intensified pressure 2) as more
than the air consumed on the outlet side. Inlet air supply should be
approx. 3.7 times (ratio of intensified pressure 4).
When running continuously for extended periods of time, confirm the
life expectancy. The life expectancy of a booster regulator depends on
the operational cycle. Thus the more frequently the actuator operates in
the outlet side or the higher the pressure, the shorter the life expectancy
will be.
AM
Booster
regulator
AF
3-way valve
residual
pressure
relief valve
Directional
control valve
Actuator
Booster
regulator
3-way valve
residual pressure
relief valve
AF
Actuator
Directional
control valve
AM
Pilot pressure(MPa)
(Outlet flow rate:0L/min)
Outlet Pressure (MPa)
0.1 0.2 0.3 0.4 0.5
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
●Check the following points in the event of product failure before returning to SMC to perform service investigation
Troubleshooting by end user
Trouble
Possiblecause
Time ofoccurrence
Countermeasures
Leakagefromthe
handle
(Reliefairdoesnot
stop.)
Inletpressureis higherthanthesetpressure.
Initialphase
Middlephase
Setthepressuretotheinletpressureormorewiththehandle.
Iftheinletpressurefluctuation islarge,stabilizeitwitha regulator.
Sealingfailureofthegovernorduetoforeignmatter.
Initialphase
Middlephase
Disassemble the governor and remove the foreign matter (Refer to the
maintenanceprocedure).
Outletpressuredoes
notincrease.
INandOUTpipingconnectedthewrongwayround.
Initialphase
Reconnectthepipingproperly.
InsufficientsupplyofInletpressureandflowrate.
Outletflowrate(amountused)istoomuch.
Initialphase
Middlephase
(1)Decreasetheoperatingpressureandflowrate.
(2)Changethesizeoftheboostervalve(fromVBA2toVBA4).
(3)Increasethenumberoftheboostervalve(use in parallel or in series).
Thesilencerisclogged.
later
Replacethesilencer.
Thehandleisturningidly(handlebreakage).
Initialphase
Removethehandleandrotatethesquarenutwithaspannerwrench.
Doesnotoperate.
The booster valve stopped because the pressure was lower
thantheminimum operating pressure.
(Intermediatestopofthedirectionalcontrolvalve)
Initialphase
Middlephase
Relievethesupplypressureaftertheoperationisstopped.
Iftheinletpressurefluctuation islarge,stabilizeitwitha regulator.
Operationisstoppedduetointrusionofforeignmatter.
(Intermediate stop of the directional control valve due to
increaseininternalresistance.)
Initialphase
Middlephase
later
(1) Supply air and increase the exhaust pressure while holding the exhaust port
withyourfinger.Thenreleaseyourfingerquickly.
(2) Relieve the air from IN and OUT ports. After that, supply the air again and
increasethepressurerapidly.
Operationdoesnot
stop.Whenthereisno
airconsumptionfrom
theoutletport.
Airisleakingfromtheequipmentor pipingonthedownstream
sideoftheoutlet.
Initialphase
Checkwheretheairisleakingfromandfixit.
Sealingiswornoutor brokendue tointrusionofforeign matter
orlubricationrunningout.
Middlephase
later
Changetheseals (Refertothemaintenance procedure).
(1) The life of the boosterregulatordepends on the air qualityand operating conditions.The following are signs that it is reaching the end of its life.
Even when the outletflow rate is 0, the booster regulatordoesn'tstop. (When the interval of the exhaustnoise is lessthan 30seconds, the sealsarebeing worn out
ordamaged.)
Sliding noise(abnormal noise). (This indicates thatlubricationisrunning out).
The silencermountedon theexhaustturnsblack duetodirt.(Seals aregettingwornout,soparticlesgetstuck in thesilencer.)
(2) Maintenance
Only personnel who are fully trained and experienced in pneumatically operated machinery and equipment should perform the maintenance in accordance with the
maintenance manual.
Refer tothemaintenancemanualfor thereplacementparts.
(3) When making a request for maintenanceto SMC
Remove accessories such as fittings mounted on the booster
parts beforereturning toSMC.
Non-consumablesparts(example:body,tube,covers)whichare
worn outordamage cannotbereplace aspartof the
maintenance request.
P
E
IN
OUT
Regulator for Pilot
PUSH
PULL
-
+
URL http://www.smcworld.com
Akihabara UDX 15F
Phone: [phone] Fax: [phone]
Specifications are subject to change without prior notice and any obligation the part of the manufacturer.
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