Vacuum Generator, Multitasking / Manifold
Multi-function vacuum generator module VJ
By newly adding pressure adjusting function to blow-off flow adjusting function, it enables to prevent works from being-blown away.
Options
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No copper-based metallic material is used in flow paths
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HNBR or FKM is used for the seal rubber material. *Some products are only compatible in the flow path.
Advantages
By newly adding pressure adjusting function to blow-off flow adjusting function, it enables to prevent works from being-blown away.
By newly adding pressure adjusting function to blow-off flow adjusting function, it enables to prevent works from being-blown away.
Shorter vacuum release time is realized.
A relief mechanism (extra pressure is relieved) is built in the blow-off circuit.
Supply valve is available in three different types.
Power saving double solenoid type (retention type) is optimal for applications where vacuum is generated for a long period of time.
LED vacuum switch allow for clearer visual recognition.
Two types of vacuum switches are available, two switch outputs, or analog & one switch output, to be selected depending on the desired application. For wiring, a connector wire is adopted to enhance the ease of designing the wiring layout.
Specifications
Common specification
Fluid media | Air(JIS B 8392-1:Class1.2.1~ 2.4.3 compliant) |
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Operating pressure range | 0.3~0.7MPa |
Operating temperature range | 5~50℃(No freezing) |
Operating humidity range | 35~85%RH(No condensation) |
Vibration/Impact resistance | Max. 50m/s2 / Max. 150m/s2 |
Protective structure | Equivalent to IP40 |
Lubrication | Not required |
Pressure resistance(Air supply circuit) | 1.05MPa |
Pressure resistance(Vacuum circuit) | 0.2MPa |
* Proof pressure does not indicate the pressure by which products operate normally but the pressure products does not break down.
Solenoid valve specification(DC24V)
Rated voltage | DC24V ±10% |
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Power consumption | 1.2W(with LED) |
Surge protection circuit | Varistor |
Operation indicator light | Red LED is on when power is supplied |
Manual override | Non-locking push type |
Solenoid valve specification(AC100V)
Rated voltage | AC100V ±10% |
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Power consumption | 1.5VA(with LED) |
Surge protection circuit | Diode bridge |
Operation indicator light | Red LED is on when power is supplied |
Manual override | Non-locking push type |
Valve specification for Ejector(Normally-closed)
Operating system | Air-piloted |
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Valve | Normally closed |
Response time(OFF→ON) | 10msec [15msec](DC24V) / 13msec [18msec](AC100V) |
Response time(ON→OFF) | 30msec [35msec](DC24V) / 33msec [38msec](AC100V) |
*) Response time is the value under the condition that supplied air pressure is 0.5MPa and rated voltage(100%) is applied
*2) The value in the brackets[ ]is of the -S3 model
Valve specification for Ejector(Normally-closed)
Operating system | Air-piloted |
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Valve | Normally open |
Response time(OFF→ON) | 15msec [20msec](DC24V) / 18msec [23msec](AC100V) |
Response time(ON→OFF) | 20msec [25msec](DC24V) / 23msec [28msec](AC100V) |
*) Response time is the value under the condition that supplied air pressure is 0.5MPa and rated voltage(100%) is applied
*2) The value in the brackets[]is of the -S3 model
Valve specification for Ejector(Double-piloted)
Operating system | Air-piloted |
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Valve | Double-piloted valve(*1) |
Response time(OFF→ON) | 10msec [15msec](DC24V) / 13msec [18msec](AC100V) |
Response time(ON→OFF) | 15msec [20msec](DC24V) / 18msec [23msec](AC100V) |
*1) Shortest excitation time for solenoid valve is 50msec
*2) Response time is the value under the condition that supplied air pressure is 0.5Mpa and rated voltage(100%)is applied
*3) The value in the brackets[]is of -S3 model
Valve specification for Blow-off
Operating system | Air-piloted |
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Valve | Normally closed |
Response time(OFF→ON) | 8msec [13msec](DC24V) / 11msec [16msec](AC100V) |
Response time(ON→OFF) | 18msec [23msec](DC24V) / 21msec [26msec](AC100V) |
*2) Response time is the value under the condition that supplied air pressure is 0.5Mpa and rated voltage(100%)is applied
*2) The value in the brackets[]is of -S3 model
Vacuum filter specification
Element material | PVF(Polyvinyl formal) |
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Filtration rating(*) | 5μm |
Element surface area | 1,130mm2 |
*) According to our internal test
Blow-off function
Blow-off air flow | 0~50L/min[ANR](at supply air of 0.5MPa) |
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Blow-off air pressure setting range | -25~25kPa |
*) Blow-off air flow varies depending on the vacuum port dia. and tubing length (pipe resistance and so on) on vacuum port side
Pressure sensor/LED display specification(W:2 switch outputs with LED display)
Current consumption | 40mA max. |
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Pressure sensing element | Diffused semiconductor pressure sensor |
Operating pressure range | -100~0kPa |
Pressure setting range | -99~0kPa |
Pressure proof | 0.2MPa |
Power supply voltage | DC12~24V ±10% ripple(P-P)10% max. |
Pressure setting point | 2 |
Repeatability | ±3%F.S.max.(at Ta=25℃) |
Hysteresis | Lock(2%F.S.max.) |
Switch output | NPN open collector(30V 80mA max., Residual voltage 0.8V max.) |
Resposne | Approx. 2msec |
Display | -99~0kPa(2-digit red LED display) |
Display frequency | Approx. 4 times/sec |
Display accuracy | ±3%F.S. ±2 digit max. |
Resolution | 1 digit |
Switch operation indicator lamp | W1:Red LED lights when output is ON /SW2:Green LED lights when output is ON |
*) Allowable variation range of "Zero point voltage", "Span voltage" and "Switch output setting point" when pressure is applied repeatedly should be ±3%F.S.
Pressure sensor/LED display specification(A:1 switch output & analog output with LED display)
Current consumption | 40mA max. | |
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Pressure sensing element | Diffused semiconductor pressure sensor | |
Operating pressure range | -100~0kPa | |
Pressure setting range | -99~0kPa | |
Pressure proof | 0.2MPa | |
Power supply | DC12~24V ±10% Ripple(P-P)10% max. | |
Pressure setting point | 1 | |
Repeatability | ±3%F.S.以下(at Ta=25℃) | |
Hysteresis | Variable(Approx. 0~15%F.S.) | |
Switch output | NPN open collector(30V 80mA max., Residual voltage 0.8V max.) | |
Analog output/Output voltage | 1~5V | |
Analog output/Zero-point voltage | 1 ±0.1V | |
Analog output/Span voltage | 4 ±0.1V | |
Analog output/Output current | 1mA max.(Load resistance | 5kΩmin.) |
Analog output/Linearity | ±0.5%F.S. max.(at Ta=25℃) | |
Response | Approx. 2msec | |
Display | -99~0kPa(2-digit red LED display) | |
Display frequency | Approx. 4 times/sec. | |
Display accuracy | ±3%F.S. ±2 digit max. | |
Resolution | 1 digit | |
Operation indicator lamp | Red LED lights when output is ON |
*) Allowable variation range of "Zero point voltage", "Span voltage" and "Switch output setting point" when pressure is applied repeatedly should be ±3%F.S.
Port size
Vacuum port size
Air supply port size
Stand-alone type
Metric size (mm) | φ4, φ6 |
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Manifold type (Straight)
Metric size (mm) | φ6, φ8, φ10 |
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Exhaust port tubing size
Stand-alone type
Metric size (mm) | φ8 |
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Manifold type (Straight)
Metric size (mm) | φ8, φ10 |
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Vacuum Characteristic Graph
Ordering Information
Detailed Safety Instructions
Warning
1.For the double-piloted valve type, the switchover valve is in the state of neutral when the supply of both pilot air to the switchover valve for vacuum generation is stopped, or at the beginning of use after shipment. When resupplying pilot air, be sure to input a signal to the pilot valve or manually operate to position the switching valve in the required state before using it
2.When using double piloted valve type under a vibration, install the vacuum generaor placing the switchover valve (main valve) at a right angle to the direction of vibration
3.Tighten screws with appropriate tightening torque referring to the digital catalog. Improper tightening may cause an air leakage, a falling off of the product or damages to the product.
Frequently Asked Questions for Vacuum Generator, Multitasking / Manifold Series
VUS011-NW and FVXS-DW-1 are not the type of the product itself, but the type of "sensor" installed in the product. The official model code of the product is laser marked (or labeled) on the body. FVUS011-** is the sensor for Vacuum Generator VK, and FVXS-** is the sensor for Vacuum Generator VX (External Vacuum Controller VXP / VXPT).
The type of our vacuum generator complex type (External Vacuum Controller) starts with "V". (VG ..., VQ ... etc.)
The sensor model code may start with FV ... and may be written as [PRESSURE SWITCH].
The sensor model code is described only in the specifications with a sensor.
"Tube exhaust type" which does not exhaust air and installing a silencer are recommended.
However, be aware when smooth plumbing without resistance is not carried out such as with too long tube to exhaust, it becomes resistance to exhaust and impair the vacuum degree.
The vacuum characteristic of each type is different.
【H type】
High-vacuum type (Rated supply pressure* : 0.5Mpa)
【L type】
Large-flow type (Rated supply pressure* : 0.5Mpa)
【E type】
High-vacuum at low air pressure supply type (Rated supply pressure* : 0.35Mpa)
For high-vacuum, H type, to provide large-suction flow, L type, and to save supply air, E type is recommended respectively. (Details of final vacuum and suction flow are determined by choice of the nozzle diameter.
*)
What is rated supply pressure?
Rated supply pressure guarantees product performance under the designated conditions and is also the supply pressure, which a vacuum generator supplies, of basis to design and use. The ultimate vacuum reaches to the max. around the rated supply pressure value.
The following graph shows the case of H type. The ultimate vacuum is the highest near 0.5Mpa. (ex. Simple vacuum generator VHH07 (Nozzle dia. 07: ø0.7mm)
When the product performance is reduced, the followings can be the causes.
Please check the product in terms of these points.
1) Check the supply air
Please check if the supply air flow volume and the air pressure are sufficient.
2) Check the nozzle clogging
When foreign substances are clogged in the nozzle, do flushing to clean it.
3)Clogging of the vacuum filter on sucking side or the silencer on the exhaust side.
When a filter is clogged, replace it with new one.
Rated supply pressure of Vacuum Generator is designated according to the vacuum characteristics (H, L and E type) respectively.
This rated supply pressure is required air pressure to start operating Vacuum Generator. When the supply air pressure is under the rated supply pressure, abnormal sound may be caused by some particular supply pressure.
During abnormal sound is being generated, the vacuum characteristics may become unstable and cause troubles such as influencing pressure detection by a sensor. Reset the product to keep the supply pressure satisfying the rated supply pressure in that case. ( Product spec. is the value in operation of Vacuum Generator.)
Both types indicate the valve position when the valve is unactuated. (normal position).
Normally closed type (N. C.)
Normal position is closed, covering a valve . When the valve is actuated, or electricity flows, the valve opens.
Normally open type (N. O.)
Normal position is open, uncovering a valve. When the valve is actuated, or electricity flows, the valve closes.
With the valve unactuated, the entrance leads to the exit.
There are two ways of measuring pressure, absolute pressure and gauge pressure.
Absolute pressure
Absolute pressure is zero-referenced against a perfect vacuum.
It is commonly used to measure flow rate.
When indicated, "abs" is inserted following the unit, for example 10 kPa abs.
Gauge pressure
Gauge pressure is zero-referenced against ambient air pressure.
It indicate how much pressure per 1cm2 is against the ambient air pressure. It is commonly used for indication of manometer. When the pressure is over the ambient air pressure, it is called "positive pressure" and when it is under the ambient air pressure, it is called "negative pressure."
Inquiries about this product
It is also possible to suggest products suitable for various conditions such as applications and functions. Please feel free to contact us or visit the nearest sales office.
The following are frequently asked questions. Please check before making inquiries.