Durr EcoGun 656 Betriebshandbuch - Seite 7

Blättern Sie online oder laden Sie pdf Betriebshandbuch für Farbspritzgerät Durr EcoGun 656 herunter. Durr EcoGun 656 20 Seiten. High-pressure automatic spraying gun

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EcoGun 651

USE

The automatic high-pressure spraying gun EcoGun 651 is intended

to surface treatment of the products by the high-pressure spraying

of commonly used NH, even the water-born materials. During the

work procedure, the sprayed material is atomized under the high-

pressure up to 300 bars. It can be used even for spraying of other

materials, which do not damage the spraying gun materials by their

composition. The gun is designed to remote control by the pressure

air controlled by the three-way electro-magnetic valve. It can be

used for all spraying devices of the VYZA type so-far produced in

Dürr Systems Czech Republic a.s., which do not exceed the HN max.

operating pressure. When other high-pressure devices are to be

used, the operation of the automatic gun must be consulted in the

manufacturing plant in advance. The gun is intended for equipment

of the automatic production lines and enables also interruption of

the spraying regarding the shape of the sprayed object and the

production line cycle. Combination of the high pressure of the NH and

the special high-pressure nozzle results in even layer of the applied

NH with minimum fly-out of small particles to the environment. The

nozzle suitable for the particular application must be selected on

basis of previous tests and recommendation of the manufacturer.

COMMISSIONING

Before commissioning of the gun, the preservation grease must be

removed from the surface by suitable degreaser. Internal section

must be flushed out by the pressure solvent connected to the inlet

angle-adjustable fitting for the NH and opening of the needle valve

with subsequent injection of the pressure control air 5 bar.

Upon cleaning the gun is fitted with suitable high-pressure nozzle or

with the holder fitted with the rotating nozzle. The nozzle is fitted

directly to the cup nut with protecting cover, which forms part of

the gun; the rotating nozzle is fixed to the holder, which is installed

directly to the gun upon screwing of the cup nut with protecting

cover.

The assembled gun is fixed to the manipulator through the holder,

connected to the pressure control air 5 bar through the three-way

electromagnetic valve of flow ca 150 l/min. and the NH supply from

the high-pressure device; then tighten the cut nut on the NH angle-

adjustable fitting. The hose must be electro-static conductive for

transport of the flammable liquids. In case of handling with the NH of

quicker sedimentation rate, which requires circulation, the circulation

high-pressure hose can be connected by unscrewing the plug in the

gun front section and fitting of the NH circulation line (not part of the

supply). The general connection is done acc. to the wiring diagram.