Vuototecnica vacuum pumps and pumpsets
Membrane vacuum mini pumps
Mini pumps are membrane-type that can be used both as vacuum pumps and compressors. In the latter version they can supply compressed air 100% oil-free up to a maximum 2 bar (g) pressure.
They are composed of:
- An air-cooled single-phase electric motor with protection class IP 00 (assembly execution)
- A pump body made of plastic corrosion-resistant material complete with fittings at both suction and blowing ports
- A Viton membrane, resistant to wear and corrosion and solidly connected to a connecting rod
- A connecting rod with built-in “long life” bearing activated by a balanced eccentric system fitted on the motor shaft
- An aluminium support for fixing the pump
They are available in the versions with single and double head to be used in series or in parallel. Membrane vacuum mini pumps are very silent (≤ 50dB(A)), they have reduced vibrations and can be installed in any position. Lubrication-free, they require no maintenance. Thanks to their minimal overall dimensions and reduced weight, they are particularly indicated for being installed on portable equipment.
They are suited for a discontinuous and non-intense use.
Rotary vane vacuum pumps
The rotor rotates eccentrically inside a stator and it has grooves in which the vanes move freely and are pushed against the stator inside wall due to the centrifugal force, thus creating as many chambers as the number of vanes. During rotation, the volume of these chambers varies according to their position with respect to the eccentric axis. The chamber volume increase makes the air inside of them expand, thus creating vacuum (suction phase); the volume reduction, on the other hand, generates air compression (exhaust or delivery phase).
The internal design is the same for both rotating compressors and vacuum pumps.
Vane mini vacuum pumps
These rotating vane mini vacuum pumps, when needed, can be used even for compressing air. They are composed of a single-phase induction electric motor with condenser, a sintered metal self-lubricating stator, a white metal rotor fitted onto the motor shaft and slotted for housing the hardened steel vanes and a silencer on the exhaust. The operation principle is the same as that of the larger series of vane vacuum pumps. They are noiseless and lubrication-free and require no maintenance. Thanks to their minimal overall dimensions and their reduced weight, they are particularly suited for being installed on portable equipment.
They are suitable for discontinuous, non-intense use.
Vacuum pumps VTL 2 & 4
These small vacuum pumps have a suction capacity of 2 and 4 cum/h. They feature a wick lubrication with oil recirculation, while the rotor, which is cantilevered-fitted on the motor shaft, allows reducing the overall dimensions to the minimum. The motor and the pump are cooled by the motor fan (surface cooling). The pumps are equipped with a small tank in line with the pump, which contains the lubrication oil as well as a separator filter to prevent oil mists and to reduce noise.
Vuototecnica strongly recommend installing a check valve and a filter on the suction inlet.
Pumps VTL 2 and 4 can also be supplied with single-phase electric motor.
Vacuum pumps VTL 5 & 10
These vacuum pumps have a suction capacity of 5 and 10 cum/h. The vacuum lubrication with oil recirculation can be adjusted via an oiler located in correspondence of the suction inlet. The rotor is cantilevered-fitted on the motor shaft and, as a result, the overall dimensions are reduced. The motor and the pump are cooled by the motor fan (surface cooling). An oil recovery tank is installed on the pump exhaust. This tank contains a separator filter that prevents oil mists and reduces noise. Vuototecnica strongly recommend installing a check valve and a filter on the suction inlet. Pumps VTL 5 and 10 can also be supplied with a single-phase electric motor.
Oil bath vacuum pumps MV series
The single-stage oil-bath vane vacuum pumps of the MV series are activated by a standard electric motor coupled together via an elastic transmission joint. A centrifugal fan cantilevered-fitted onto the pump shaft guarantees the right airflow for cooling the pump unit (forced surface cooling). A large oil recovery tank with built-in micro-fibre de-oiling cartridges, located on the pump exhaust, serves as a silencer and as a fume collector. The oil contained in the system lubricates and cools and seals the rotating and the fixed parts of the pumps. The standard check valve on the suction inlet is integral part of the pumps. Upon request, a filter for trapping possible impurities can also be provided. Pumps included between the MV 20 and the MV 100 are set for the installation of a gas ballast valve (upon request) which allows for a high compatibility to water vapour. In the other pumps, starting from MV 160R up to MV 300R, the built-in gas ballast valve is a standard. The features described above associated with a strong and compact construction make the pumps of the MV series suitable for continuous and intense use.
Mini pumpsets
Mini pumpsets are independent vacuum-producing units with reduced size. They are composed of:
- A small welded sheet steel tank with perfect vacuum seal
- A low-capacity dry or lubricated rotating vane vacuum pump
- A mini vacuum switch for adjusting the maximum vacuum level
- A vacuum gauge for reading the vacuum level
- A switchgear enclosed in a special casing
- A manual valve for vacuum interception
- A cock for condensation drainage.
The vacuum level, preset via the mini vacuum switch is automatically maintained in the tank. Mini pumpsets can also be supplied with single-phase or DC electric motors and they are suited for equipping fixed or mobile working units that require vacuum, such as:
- Trolleys with vacuum cups for fixing and transporting glass and crystals
- Vacuum clamping systems for ski maintenance, marble processing and for polishing copper, pewter or silver objects
- Hoists with vacuum cups for lifting television sets and household appliances for glass installation in door and window frames, for laying ceramic tiles, for feeding sheet metal into presses, etc.
Horizontal pumpsets
As a standard, these pumpsets are built with various capacities and they are composed of:
- A horizontal welded sheet steel tank with perfect vacuum seal
- A rotating vane vacuum pump to be selected according to the required suction capacity and vacuum degree
- A vacuum switch for adjusting the vacuum level within which to operate
- A vacuum gauge for a direct reading of the vacuum level in the tank
- A switchgear enclosed in a special plastic casing for tanks from 25 to 50 litres and in a watertight metal casing for tanks of 100 litres upwards
- A manual valve for vacuum interception
- A cock for condensation drainage
The vacuum level, preset via the mini vacuum switch is automatically maintained in the tank. The pump operation can be either continuous or automatic. Pumpsets are normally used for handling particularly heavy or valuable loads since, in case of electricity failure, they allow the vacuum cups to maintain the grip for a certain amount of time, according to the tank capacity. These pumpsets are recommended for multi-point applications, to centralise vacuum.
These pumpsets offer many advantages in energy consumption, since the pump operates only when required by the machine.
Vertical pumpsets
As a standard, these pumpsets are built with various capacities and they are composed of:
- A vertical welded sheet steel tank with perfect vacuum seal
- A rotating vane vacuum pump to be selected according to the required suction capacity and vacuum degree
- A vacuum switch for adjusting the vacuum level within which to operate
- A vacuum gauge for a direct reading of the vacuum level in the tank
- A switch gear enclosed in a special watertight metal casing
- A manual valve for vacuum interception
- A cock for condensation drainage.
The vacuum level, preset via the mini vacuum switch is automatically maintained in the tank. The pump operation can be either continuous or automatic.
These pumpsets are normally used for interconnecting several vacuum-operated machines and, for safety reasons and in case of electricity failure; they allow the vacuum cups to maintain the grip for an amount of time proportional to the tank capacity. As for energy consumption, in both cases these pumpsets offer many advantages, since the pump operates only to restore vacuum in the tank within the preset values and its interventions depend exclusively on the quantity of air that is actually sucked at the service.
