A dispensing system, to work properly, need a series of accessory parts, such for example the hoses, the nozzles for the valves, some sensors to check the dispensing process.
For the customers is key to find a partner, able to supply complete solutions, without limitation to some parts, which, if not perfectly armonized, can’t give the performance which are designed for.
ELECTRICAL PNEUMATIC DISPESING SYSTEMS
Desktop system for anaerobic
The dispenser DA 1000 T is created to perform manual dispensing with precision and repeatability.
These units allow, with a minimal investment, a rapid transition from the grease application with brushes or jars to a precise micro dosing.
The control units are versatile and can work with various types of product both in pasta that fluid, with a setup of a few seconds can pass from oil or grease dose to dose instant glues.
The vacuum function also prevents dripping of the syringe at rest, while the actuation of the control unit can be done either with the pedal supplied or with the finger switch on the handle of the syringe. The control DA 1000 T can also be modified as necessary and used for timing the metering valves DAV Tech when is not possible use a PLC.
The system is developed to have a compact, reliable and high performance solution for the application of anaerobic sealants on screws, pins, fittings etc.
The system is made by a stainless steel tank, designed to host, without pour off, the 250 ml bottles from Loctite or Loxeal, by an high precision diaphragm dispensing valve, and by an electro-pneumatic unit to control the system and to receive the presence signal from a sensor.
In this way is possible to have a reliable dispensing, a clean working area, without fluid waste and contamination, and a big time saving.
ACCESSORIES FOR PROCESS CONTROL
Air bubbles detector
Pressure sensor for high viscosity fluids
DAV Tech offers the possibility to monitor the passage of liquid products, such as oil, using a special flow sensor.
The signaling of the passage occurs via a reed switch activated by a magnet, located on a piston moved by the pressure of the fluid in transit. The sensor measures a minimum pass of 10 mm³.
The detector allows to highlight the presence of an air bubble inside a tube without contact between the detector and the liquid. Using the technology of ultrasound is possible to control this important parameter of the process even in presence of aggressive fluids such as primers, glue, thread lockers etc. The sensor is available in 2 sizes to accommodate various sizes of pipe.
The pressure sensor with diaphragm allows you an accurate control of the pressure changes within the circuit, even when dispensing products with a high reactivity such as silicones. The sensor, depending the model chosen, can provide an output signal 0-10Vdc or 4-20mA and is supplied complete with connector. You can also choose the reading range, which is available in various sizes from 0-10 to 0-300 bar.
NOZZLES AND CONSUMABLE MATERIALS
The nozzles have a conical polypropylene body with a luer lock thread to be mounted on the dispensing valves.
With their tapered shape are ideal to dispense fluids with medium to high viscosity such as resins, liquid gaskets and silicone.
Nozzles with stainless steel canula
The nozzles with plastic hub and stainless steel canula are available in 3 different lenghts, 0,5” - 1” - 1,5”.
The nozzles are designed for many different application, expecially to reach hard to find positions.
Stainless steel nozzles
The stainless steel nozzles are a great compromise between price and quality and can be used with aggressive fluids. The nozzles are also available in huge passage versions (up to 3 mm) for the extrusion of high viscosity fluids.
Nozzles with flexible polypropylene canula
This nozzles avoid any damaging of the parts in case of contact.
The inner diameter can be 1,2 - 1,0 - 0,8 - 0,6 and 0,4 mm.
Nozzles with PTFE canula
This nozzles have a PFTE canula, axially mounted on a stainless steel canula.
This configuration allow the dispense of reactive fluids such as anaerobics and cyano-acrilics.
This luer lock nozzles have a brush (available in different sizes) mounted on their end.
Are ideal for example for spreading siliconic oil on gaskets.
A wide range of static mixers allow to choose the better one for any single application o 2k fluid dispensing.
The syringes are available in 10, 30 and 55 cc version, equipped with various shape pistons.
HOSES FOR FLUIDS FEEDING
Armored hoses with PTFE tube
High pressure hoses
The DAV Tech armored hoses could be tailor made supplied, choosing the lenght, the size, the hidraulic fittings and its shape.
The armored textile increase the resistence and the inner tube, made in PFTE allow the greatest glide of the flow, and prevent any contact with moisture, very important for fluids such as silicones.
The DAV Tech hoses can be produced with diameters and especially with fully configurable lengths. Under the rubber, steel braid protects and strengthens the inner tube, making it ideal for feeding of products such as greases and lubricants. The fittings of various sizes and shapes, are crimped and allow it to with stand pressures above 300 bar.
The DAV Tech heated hoses contain a PTFE tube which is covered by a series of resistors, that can heat it between 20 and 200 ° C. an integrated PT100 probe signals the need to turn off or turn on the power electricity to keep the temperature constant. The heated hoses are available in various lengths in multiples of 600 mm and are supplied complete with connectors, power cords and CE marked.
To feed aggressive and reactive products such as anaerobic glues or instant glues, the PTFE pipes are the best solution. The pipes are available with various size and length, if request also with PTFE fittings.
ACCESSORIES FOR DISPENSING SYSTEMS
Manifolds and flow regulators
High pressure filters
The manifolds and flow regulators allow to divide the fluid towards various directions.
The flow regulators expecially are ideal when the fluid circuit is divided in various lengths tubes because it allows the adjusting of the fluid in different ways on each single outlet.
During the drum change operations is frequent the contamination of the grease or the silicon with powder, dirty particles or shavings.
If this particles move to the dispensing valves it can damage or destroy it. For this reason a cartridge filter could be used to prevent this kind of problems. The cartridges could be easily changed to be cleaned or changed and are available with a passage size from 30 to 150 micron.
Low pressure filters
The oil that have to be dispensed can be placed in contact with shavings or dirty parts that can damage or clog the dispensing valve.
A filter can be placed on the pressure tank outlet and prevent this kind of problems. The filters are available with various treads and passage sizes.
For any kind of hydraulic or pneumatic circuit DAV Tech is able to supply all the necessary fittings, from a simple treaded connector to the most complex high pressures rotary fittings.
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DAV Tech Srl
Via Ravizza 30
36075 Montecchio Maggiore
(VICENZA) - ITALY
Tel. 0039 0444 574510
Fax 0039 0444 574324
Cod. Fisc. e P. IVA 03157870241
DAV Tech in Europe
Czech Republic /
460 01 Liberec 1
tel. (+420) 485 151 447
fax (+420) 485 152 855
TriboTec Polska Sp. z o.o.
ul. Grabiszynska 281
tel. (+48) 71 7575 600
fax: (+48) 71 7575 601