User manual EFD 782RA INSTALLATION GUIDE

[. . . ] 782RA Spray Valve INSTALLATION GUIDE Electronic pdf files of EFD® manuals are also available at www. efd-inc. com/manuals. html. ® A NORDSON COMPANY USA: 800-556-3484 or +1-401-434-1680 Europe: 0800 585733 or +44 (0) 1582 666334 Asia: +86 (21) 5854 2345 technical@efd-inc. com www. efd-inc. com Introduction The 782RA is a precision, air-actuated spray valve that produces a narrow radial output ideal for coating the interiors of cylinders. LVLP (low volume low pressure) air is used to atomize the fluid, while a precision air motor drives a rotating air cap that produces the radial output. [. . . ] After filling, secure the cover and connect the reservoir air pressure regulator to the air tee using the flexible air line (supplied). Attach the black male quick-connect on the air line to the reservoir regulator and then attach the white quickconnect to the air tee. To pressurize the system, slide the shut-off valve on the air line toward the fluid reservoir. Set the reservoir pressure regulator according to fluid viscosity, to low for thin fluids 1 to 3 psi (0. 07 to 0. 2 bar) and higher for thick fluids. Set the needle stroke control at one turn open. Final setting will be determined by the desired flow rate. 7 2 2. 3. 6 0 5 4. Output A 3 Output B 5. ® A NORDSON COMPANY VALVEMATE 7060RA M M M 6. 5 7. How the Valve Operates Input-air pressure at 70 psi (4. 8 bar) acts on a piston that retracts the needle from its nozzle seat , permitting fluid flow from the nozzle . At the same time, atomizing air from the ValveMateTM 7060RA controller is turned on and flows from the rotor air tube across the fluid nozzle at a 70° angle. This atomizing air creates a pressure drop around the nozzle, causing fluid to atomize into fine droplets and follow the direction of the atomizing air flow. The rotor, spinning at approximately 2500 rpm, causes the radial output to sweep around and evenly coat the inner circumference of the cylinder. When the timed actuating air from the ValveMate 7060RA controller shuts off, the piston spring moves the needle onto the nozzle seat and shuts-off fluid flow. An adjustable atomizing air delay ensures that all fluid is atomized after the valve closes, eliminating post-deposit spatter. open closed ValveMate Concept The ValveMate 7060RA provides easy adjustment of valve output for maximum end-user convenience and efficiency. Valve opentime is the primary control of deposit size. The 7060RA puts push-button adjustment of valve open time where it needs to be ­ at the valve. The controller incorporates unique microprocessor circuitry to provide exact time control and interact with the host computer. [. . . ] East Providence, RI USA 800-556-3484; +1-401-434-1680 (outside the USA) info@efd-inc. com www. efd-inc. com EFD International Inc. Dunstable, Bedfordshire, UK 0800 585733 or +44 (0) 1582 666334 Ireland 00800 8272 9444 europe@efd-inc. com www. efd-inc. com EFD, Inc. , Asia China: +86 (21) 5854 2345 china@efd-inc. com www. efd-inc. com/cn Singapore: +65 6896 9630 sin-mal@efd-inc. com ©2006 Nordson Corporation 782-INSTALL-01 v062606 [. . . ]