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Vacuum measurement, control and adjustment instruments

Vacuum and pressure unit conversion table

Vacuum and pressure unit conversion table

Vacuum and pressure unit conversion tables and pressure measurement unit conversion factors (absolute values).

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Vacuum and pressure gauges

Vacuum and pressure gauges

The measurement method of our vacuum gauges is based on the principle of the Bourdon spring (Eugène Bourdon, France, 1808–1884).
It is made using section tubes in special copper alloy, one end is welded to the threaded pin of the vacuum-pressure gauge, thus forming a single body with it, while the other closed end is free As the vacuum or the pressure inside increases, it tends to shift from the initial position (Bourdon effect). The movement of the free end of the spring determines the vacuum-pressure measurement. In order to allow an easier reading, this movement is amplified by means of a connection lever and transmitted to the pointer.
All is enclosed in a sturdy metal casing which contains the dial and the pointer, that can be seen through a glass. They are available in various versions, with coaxial or radial connectors, with built-in or external flange, dry or glycerine filled. Except for vacuum gauges with diameter Ø 40 mm, all the other models have a double scale dial.
All the vacuum and pressure gauges we will describe in these pages are made in compliance with all the safety standards and measurement units in force in the European Union.
Product codes: 090315 090320 090325 090310 090110 090116 090210 090510 090516

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Vacuum gauge with steel punch

Vacuum gauge with steel punch

This vacuum gauge with punch has been designed to allow the immediate detection of the level of vacuum inside tin cans and food containers in general.
The glycerine bath vacuum gauge item 09 05 16 used for this application (features described on the previous page) is provided with a hardened steel punch to easily perforate the containers and with a vacuum cup in silicon compound to guarantee vacuum seal after perforation.
It is available in the standard version, which is the one shown on this page, but can be provided in other versions upon request.
Product codes: 090599

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Mini pneumatic vacuum switches

Mini pneumatic vacuum switches

These extremely compact vacuum switches give or remove a pneumatic signal, depending on the model, when a certain adjustable level of vacuum is reached.
The pressure differential existing between the set maximum value and that of the signal recovery at rest is not adjustable.
They are particularly suited for controlling vacuum generators and for activating pneumatic valves.
Product codes: 120130 120230

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Mini electromechanical vacuum switch

Mini electromechanical vacuum switch

This extremely compact vacuum switch gives an electric signal when a certain adjustable level of vacuum is reached.
The pressure differential existing between the set maximum value and the value of reset of the rest signal is 50- 60 mbar and it is not adjustable.
They are particularly suited when an electrical signal is needed when a certain level of vacuum is reached, for safety, for starting a cycle, for checking the cup grip, etc.
Product code: 120210

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Micro digital vacuum switches

Micro digital vacuum switches

If accurately calibrated and compensated for temperatures, these small devices are able to give very precise digital signals to the set maximum measuring value.
The switching point, which is within the scale value, can be easily programmed by means of an adjustment screw located on the upper part of the device. A red LED near the screw indicates the digital output signal commutation status. The pressure differential (hysteresis) between the set maximum value and the value of reset of the rest signal is 2% of the set value and cannot be adjusted.
They are composed of a polycarbonate enclosure, which includes the sensor and the electric circuit, and of a coupler or a small aluminium manifold with the vacuum connections.
Item 12 05 10 can also be rotated freely to place the display in the desired position, without having to unscrew it from the vacuum connection. The vacuum connection can be carried out via male or female M5 connectors, while the electrical connection is made via a three-connector cable with which they are equipped. Mini digital vacuum switches are suited for controlling dry air and non-corrosive gasses. They are recommended in all those cases that require a signal when a certain level of vacuum is reached, for safety, for starting a cycle, for checking the cup grip, etc.
Product codes: 120510P 120510N 120511P 120511N

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Analogue vacuum switch

Analogue vacuum switch

These compact and extremely light switches come enclosed in a sturdy ABS casing; these features allow their installation on the machine and close to the application. If accurately calibrated, these analogue switches provide very precise measurements values.
The adjustment range is from 0 to -1 bar and can be interfaced with external logics via an analogue output from 1 to 5 Volts and a digital PNP output, configurable via Teach-In.
The switching point, as well as the hysteresis from 0 to 100% of the set value, can be easily programmed via push buttons located on the control panel; the two two-colour LEDs on the control panel signal the commutation status and the error code, if any.
These devices can be rotated freely to place the display in the desired position, without having to unscrew them from the vacuum connection.
The vacuum connection is dual threaded: male G 1/8” or female M5. The electrical connection is an M8 4-pin threaded plug and upon request the connection cable is available in PUR, with an axial or radial connector.
These vacuum switches are suited for measuring and controlling dry air and non-corrosive gasses.
They are recommended in all those cases that require a measurement and commutation to be installed on safety or energy-saving devices, on systems for optimising the work cycle time and in circuit level of vacuum adjustment circuits.
Product codes: 120710

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Digital vacuum and pressure switches

Digital vacuum and pressure switches

These compact and extremely light digital vacuum and pressure switches are enclosed in a sturdy ABS casing. These features allow installation on the machine and close to the application.
These digital switches are accurately calibrated and compensated for temperatures and therefore are able to give very precise measurements values. The detected values are shown on the display, making it unnecessary to use a vacuum gauge. The two LEDs, one red and one green, built-in the control panel, indicate the commutation status of the two digital output signals.
The two commutation outputs are completely independent. The switching points within the scale values, including hysteresis from 0 to 100% of the set value, are easily programmable via the buttons located on the control panel.
Other additional functions can be configured, such as the comparison between two values, NO and NC contacts, choice of the measurement unit, locking the programmed values and functions, display reversal, etc. These devices can be rotated freely to place the display in the desired position, without having to unscrew them from the vacuum connection.
The vacuum or the pressure connections can be carried out via a dual male G 1/8” or female M5 threading. The electrical connection is an M8 4-pin threaded plug and upon request the connection cable is available in PUR, with an axial or radial connector. These switches are suited for measuring and controlling dry air and non-corrosive gas.
They are recommended in all those cases that require a signal when a certain level of vacuum is reached set for safety, for starting a cycle, for checking the cup grip, etc. Moreover, the hysteresis function allows managing the vacuum generator compressed air supply, allowing considerable energy saving.
Product codes: 121010 122511 001220 001221 001222

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Digital vacuum switches

Digital vacuum switches

Changes the shape of these digital vacuum switches with respect to those previously described, from cylindrical to parallelepiped. However, the container in which they are enclosed remains in ABS and is also especially compact and extremely light to allow for its installation on board automatisms and near use.
These carefully calibrated devices are able to provide very accurate measurement values. The detected values are shown on the display, making it unnecessary to use a vacuum gauge.
The panel includes two LED indicators, one green and one red, which indicate the switching status of the two digital output signals. The switching outputs are completely independent. The switching points within the scale values, including hysteresis from 0 to 100% of the set value, are easily programmable via the buttons located on the control panel.
Other additional functions can be configured, such as the comparisons between values, NO and NC contacts, the choice of the units of measure, the blocking of functions and programmed values, etc.
The vacuum connection can be made by means of a G 1/8” male or M5 female double threading connection.
Electrical connection for item 12 30 10 is push-in with a M8-4 pin threaded jack. A connection cable can be provided in PUR upon request with corresponding axial or radial connector.
Instead, item 12 30 10 A already has an integrated PUR, 2-metre long connection cable. The adjustment range of vacuum switch 12 30 10 is from 0 to -1 bar, with two digital PNP outputs that can be set by means of Teach-in. The adjustment range of item 12 30 10 A, while it is also between 0 and -1 bar, can instead be interfaced with external logics via a 1 to 5 volt analogue output and two digital PNP outputs.
This series of digital vacuum switches is suitable for measuring and control of dry air and non-corrosive gases. These are recommended in all cases where maximum and minimum value signalling is required, set for safety reasons, in order to start a work cycle, to control vacuum cup gripping, and so on. In addition, with the hysteresis function, it is possible to manage the compressed air supply to the vacuum generators, allowing for considerable energy savings.
Product codes: 123010A 123010

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Digital vacuum and pressure switches

Digital vacuum and pressure switches

These compact and extremely light switches come enclosed in a sturdy ABS casing; these features allow their installation on the machine and close to the application.
These digital switches are accurately calibrated and compensated for temperatures and therefore are able to give very precise measurements values. The detected values are shown on the display, making it unnecessary to use a vacuum gauge. The two LEDs, one red and one green, built-in the control panel, indicate the commutation status of the two digital output signals.
The two commutation outputs are completely independent.
The switching points within the scale values, including hysteresis, are easily programmable via the buttons located on the control panel.
Additional functions are also programmable, such as comparison between two values, NO and NC contacts, choice of the unit of measurement, programmed value and function blocking, etc.
The vacuum or the pressure connections can be carried out via a dual connection with female G 1/8” thread, while the electrical connection is carried out through the 4-conductor cable with which they are equipped. These switches are suited for measuring and controlling dry air and non-corrosive gas.
They are recommended in all those cases that require a signal when a certain level of vacuum is reached set for safety, for starting a cycle, for checking the cup grip, etc. Moreover, the hysteresis function allows managing the vacuum generator compressed air supply, allowing considerable energy saving.
Product codes: 122010P 123510P

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Digital vacuum and pressure switches with two-colour display

Digital vacuum and pressure switches with two-colour display

These devices are also enclosed within a robust ABS container. They are carefully calibrated and at compensated temperature, ensuring high-precision measurement values. Detected values are viewed on the main two-colour (red and green) display and programmable by the user to set different conditions. Setting values are easily viewable on a secondary display within the command panel. Two luminous indicators pertaining to outlets 1 and 2 indicate the switching status of both digital and the analogue output signals. The switching outputs are completely independent.
The switching points within the scale values, including hysteresis, are easily programmable via the buttons located on the control panel. Additional functions are also programmable, such as comparison between two values, NO and NC contacts, choice of measurement unit, programmed value and function blocking, etc. The connection to the vacuum may be established by means of a male G 1/8" or female M5 double threading connection. It is possible to establish an electric connection by means of a removable, rapid installation data cable, supplied as standard. Digital vacuum and pressure switches are suitable for measuring and controlling dry air and non-corrosive gases. They are recommended in all those cases that require a signal when a certain level of vacuum is reached set for safety, for starting a cycle, for checking the cup grip, etc. Moreover, the hysteresis function allows managing the vacuum generator compressed air supply, allowing considerable energy saving.
Product codes: 124010 124012 124020 001240 001241 001242 001243

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Accessories for analogue and digital vacuum and pressure switches

Accessories for analogue and digital vacuum and pressure switches

Cable with axial connector
Cable with radial connector
Wall-mounting kit
Fixing kit
Product codes: 001220 001221 001222 001230 001231 001232 001240 001241 001242 001243

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Vacuum adjustment valves

Vacuum adjustment valves

When these valves reach a certain pre-calibrated vacuum degree, they introduce atmospheric air into the circuit to prevent the increase of the set value and to keep it constant.
They can be used as regulators only on circuits having only one vacuum pump and only one use (or more uses but all working at the same vacuum degree).
In most cases, they are used as safety valves on non-commissioned tanks or containers at high levels of vacuum and on vacuum cup lifting systems.
The level of vacuum is adjusted by rotating the knurled bush in both directions. The fine thread with which the valve is provided ensures a very accurate calibration. The temperature values within which the valves can operate go from -20 °C to +120 °C.
Product codes: 040110 040210 040310 040410 040510 040110I 040210I 040310I 040410I 040510I

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Vacuum regulators

Vacuum regulators

These devices control the level of vacuum, maintaining it constant at the pre-set value (secondary vacuum), regardless of the network's flow rate and the fluctuations in vacuum level (primary vacuum).
They operate by membrane-piston and exploit the pressure differential between the secondary vacuum and the atmospheric pressure.
Unlike the vacuum control valves, reducers do not release air into the circuit, thereby allowing for the creation more grip points taken at different degrees of vacuum, from a single vacuum source.
The level of vacuum is adjusted manually by turning the knurled thumb screw clockwise to increase it, and counter clockwise to decrease it.
Technical features
- Operation: membrane-piston regulator
- Adjustable operating pressure: from 800 to 1 mbar abs.
- Flow rate: from 2 to 160 m3/h.
- Room temperature: from -10 to +80 °C
- Installation position: any
Usage
The best use of vacuum reducers is in centralised plants where, regardless of the plant's level of vacuum, each outlet can be adjusted within that value. Moreover, they are necessary whenever the working vacuum must be lower than the primary vacuum.
Product codes: 110110 110210 110310 110410 110510 110610

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Regulators for rough vacuum levels

Regulators for rough vacuum levels

The regulators described in this page are based on the same operation principle as the ones described in the previous page and have the same function. The only difference is that in these ones the minimum adjustable vacuum level is close to the atmospheric pressure value.
The level of vacuum is adjusted manually by turning the knurled thumb screw clockwise to increase it, and counter clockwise to decrease it.
Technical features
- Operation: membrane-piston regulator
- Adjustable operating pressure: from 980 to 1 mbar abs.
- Capacity: from 20 to 160 m3/h
- Room temperature: from -10 to +80 °C
- Installation position: any
Usage
These regulators are used as the previously described ones, but they offer the additional advantage of regulating even vacuum levels close to the atmospheric pressure.
Product codes: 110350 110550 110650.

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Vacuum regulators with pneumatic adjustment

Vacuum regulators with pneumatic adjustment

Vacuum regulators with pneumatic adjustment differ from the previous ones for the way they adjust the vacuum level; in fact, instead of acting manually on the adjustment screw, it is necessary to act on the pneumatic cylinder compressed air supply: the higher the pressure, and the higher the vacuum level and vice versa.
Vacuum regulators are used to adjust the pre-set vacuum level and keep it constant (secondary vacuum), regardless of the pump vacuum level (primary vacuum).
Unlike the vacuum adjusting valves, regulators do not introduce air into the circuit, thus producing more gripping points with different vacuum values, from only one vacuum source.
Their operating principle is based on the contrasting action between a pneumatic cylinder with short stroke and a fluctuating piston driven by the pressure differential existing between the secondary vacuum and the atmospheric pressure.
Technical features
- Operation: membrane-piston regulator.
- Supply pressure:
--- from 0 to 3 bar (g) for regulators item 11 .. 30
--- from 0 to 5 bar (g) for regulators item 11 .. 80
- Adjustable working pressure:
--- from 800 to 1 mbar abs. for regulators item 11 .. 30
--- from 980 to 1 mbar abs. for regulators item 11 .. 80
- Capacity: from 2 to 160 m3/h
- Room temperature: from -10 to +80 °C.
- Installation position: any.
Usage
Vacuum regulators are mainly used on centralised plants where, regardless of the plant vacuum level, each grip can be adjusted within that value. Moreover, they are necessary whenever the working vacuum must be lower than the primary vacuum and kept constant. Vacuum regulators with pneumatic adjustment can be installed away from the control point, since it is sufficient to have a pressure regulator on the control panel to act on them.
Product codes: 110130 110230 110330 110430 110530 110630 110380 110580 110680

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Diagrams referring to the vacuum level according to the servo-control supply pressure

Diagrams referring to the vacuum level according to the servo-control supply pressure

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Sealing kit for vacuum reducers

Sealing kit for vacuum reducers


Product codes: 0011113 0011114 0011115 0011116 0011117 0011118 0011119 0011120 0011121 00 11122 0011123 0011124 0011125 0011126 0011127 0011128 0011129 0011130

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