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Summary of Contents for DAV TECH DA 250
- Page 1 Installation and maintenance guide DIAPHRAGM VALVE DA 250 DAV TECH SRL Via Ravizza, 30 - 36075 Montecchio Maggiore (VI) - ITALIY Tel. 0039 0444 574510 - Fax 0039 0444 574324 davtech@davtech.it - www.davtech.it...
- Page 2 Installation and maintenance guide Index 1 INTRODUCTION pag. 3 1.1 The manual 1.2 Warranty 1.3 Goods receiving 2 TECHNICAL DESCRIPTION pag. 3 2.1 Valve operation 2.2 Technical specifications 2.3 Connection diagram 3 INSTALLATION pag. 4 3.1 Mounting on the machine 3.2 Drive the valve 3.3 Fluid connection 3.4 Setting of the valve...
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Page 3: Technical Description
Reproduction of any part of this manual, in any form, without the express written permission of DAV Tech. The text and illustrations in this manual are not binding, the DAV tech reserves the right, at any time and without notice, the right to make any changes to improve the product or for reasons of character manufacturing or commercial. -
Page 4: Connection Diagram
A good fixing of both the dosing valve to the support and the machine should be guaranteed without vibration and with good accessibility for adjustment, cleaning and maintenance. Threaded hole M5 for fastening The ideal working position of the dosing valve is the vertical one, with the nozzle facing down. Other positions are possible with the approval of DAV Tech... - Page 5 DIAPHRAGM VALVE DA 250 Air inlet 3.2 Drive the valve The dosing valve DA250 is a dispensing valve that can work both in a simple and a double effect, as there is a safety spring that keeps the valve normally closed.
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Page 6: Maintenance
Minimal, simple, accurate, and constant maintenance allow for long-lasting and smooth operation in the dosing valve time, while maintaining performance. 4.2 Valve Disassembly - Re-assembly If it is necessary to disassemble the DA 250 valve, proceed as follows: 1) Disconnect the pneumatic supply 2) Disconnect the fluid supply after discharge... - Page 7 6 BREAKDOWN AND DIMENSIONS 6.1 Overall dimensions These are the indicative dimensions of the DA 250 valve. Download 3D models from our web-site. NOTE! The “old” and “updated” versions differ in their external appearance due to the presence or absence of the dowel placed in the center of component no.
- Page 8 Installation and maintenance guide 6.2 Breakdown (old version) 6.3 Components CODE QUANTITY DESCRIPTION 02130320 Screw 25001 Adjustment block 25002 Spring 25003 Piston 92010702 O-ring 92011401 O-ring 25004 Lip seal 25005 Washer 25009 Body 25006 Diaphragm 25010 Body Teflon 25007 Frontal body 25008 Ferrule 95121502...
- Page 9 Diaphragm DA 250 MDC000450 Full micrometric adjustment PST000450 Piston Ø 18 WSH000450 Washer M25004 Lip seal DA 250 DA 250 ferrule for syring M25008 nozzle Push-in fitting in nickel-pla- RRBF0252 ted brass SC00030251 Stainless steel screw SC00030161 Stainless steel screw...
- Page 10 DAV TECH SRL Via Ravizza, 30 - 36075 Montecchio Maggiore (VI) - ITALY - Tel. 0039 0444 574510 - Fax 0039 0444 574324 davtech@davtech.it - www.davtech.it We reserve the right to modify at any time, without notice, the specifications, dimensions and weights in this manual.
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