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U S E R G U I D E

M O D E L 8 2 8 D I S P E N S I N G V A L V E

Adjusting Suck Back

To adjust the suck back of the Model 828 valve, turn the Suck-Back Adjustment Screw
(Figure 5, B) clockwise to decrease suck back or counterclockwise to increase suck
back.

Figure 5.

Adjustment Controls

Figure 6. Piston Stop Screw

–

Pinch-Piston Flow

Adjustment Screw

–

Suck-Back

Adjustment Screw

Suck-Back Piston Stop-

Screw: Preset to Close

Tube 50%

Pinch-Piston Stop-Screw:

to Stop Flow; Do Not Over
Pinch

Содержание 828

Страница 1: ...Model 828 Disposable Fluid Path Dispensing Valve User Guide ...

Страница 2: ...systems optimize the speed of automated assembly allow for 100 in line inspection and increase throughput System designs enable stand alone configuration or integration into your existing assembly line Please note that most dispensing and curing system applications are unique Dymax does not warrant the fitness of the product for the intended application Any warranty applicable to the product its a...

Страница 3: ...n of the Model 828 Dispensing Valve 6 Special Features and Benefits of the Model 828 7 Over Pinch Adjustment 7 Disposable Fluid Path 7 Suck Back Feature 7 Assembly and Setup 8 Unpacking and Inspecting Your Shipment 8 Parts Included 8 Tubing Installation 9 Mounting 10 System Interconnect 10 Valve Adjustments 10 Troubleshooting 12 Spare Parts and Accessories 13 Options Accessories 14 Specifications ...

Страница 4: ...he instructions contact Dymax Application Engineering to answer your questions before using the equipment Where to Get Help Dymax Customer Support and Application Engineering teams are available in the United States Monday through Friday from 8 00 a m to 5 30 p m Eastern Standard Time You can also email Dymax at info dymax com Contact information for additional Dymax locations can be found on the ...

Страница 5: ...ispensing fluids obtain and read the SDS for each fluid before using the fluid Dymax includes an SDS with each adhesive sold SDS for Dymax products can be requested on the Dymax website Specific Safety Considerations Using Safe Operating Pressures Pressurizing the components in the dispensing system beyond the maximum recommended pressure can result in the rupturing of components and serious perso...

Страница 6: ...o it can handle stringy and tacky materials with no mess The 828 pinch valve can be controlled by a digital controller such as the DVC 345 digital valve controller or by a four way solenoid valve The Model 828 is featured in several filling systems CAUTION If there is a loss in air pressure to the valve the Model 828 valve will no longer have the force to prevent materials from flowing Precautions...

Страница 7: ...damage to the fluid path extending the life of the tubing and reducing the amount it needs to be replaced Disposable Fluid Path The Model 828 valve features a disposable fluid path constructed out of tubing Fluids are carried from the material reservoir to the dispense tip in a completely sealed path ensuring no contact with the valves inner parts This reduces wear to the valve s inner parts reduc...

Страница 8: ... and notify the shipper of box damage immediately Open each box and check for equipment damage If parts are damaged notify the shipper and submit a claim for the damaged parts Contact Dymax so that new parts can be shipped to you immediately Check that the parts included in your order match those listed below If parts are missing contact your local Dymax representative or Dymax Customer Support to...

Страница 9: ...vailable for order through Dymax This valve is compatible with a maximum tubing size of 0 375 9 53 mm OD 1 Separate the Tube Support Figure 3 A from the Valve Body Figure 3 B by removing the four Socket Head Cap Screws Figure 3 D 2 Place the Tubing Figure 3 C in the slot Figure 3 E on the Tube Support 3 Reconnect the Tube Support to the Valve Body by reinstalling the four Socket Head Cap Screws D ...

Страница 10: ...he dispense valve for mounting purposes see Figure 8 System Interconnect Air Once the dispense valve is secured to its mounting surface connect the air lines to the ports provided on the valve Figure 4 Connect the air supply 75 100 psi 5 1 6 9 bar to the valve controller or 4 way solenoid valve Figure 4 Air In Port Valve Adjustments Adjusting Material Flow To adjust the flow of the Model 828 valve...

Страница 11: ...he Suck Back Adjustment Screw Figure 5 B clockwise to decrease suck back or counterclockwise to increase suck back Figure 5 Adjustment Controls Figure 6 Piston Stop Screw A Pinch Piston Flow Adjustment Screw B Suck Back Adjustment Screw Suck Back Piston Stop Screw Preset to Close Tube 50 Pinch Piston Stop Screw to Stop Flow Do Not Over Pinch ...

Страница 12: ...e fluid delivery system Diagnose and repair Material leaks from the valve tip The pinch stop screw is not properly adjusted Adjust the pinch stop screw There is an air bubble trapped in the fluid section of the valve or in the dispense tip Point the valve up and cycle it until air bubbles are purged out The dispense rate is too fast The fluid pressure is set too high Decrease the fluid pressure Th...

Страница 13: ... 1 6 T15241 Model Endcap 1 7 T10423 Model 828 Pinch Piston 1 8 T10424 Model 828 Blunt Piston 1 9 T15145 U Cup BUNA 0 125 CS X 1 0 ID X 1 25 OD 2 10 T12447 Pin Roll 0 125 OD 0 75 SS 1 11 T12310 Helicoil Free 8 32 0 246 4 12 T14865 Screw SHSS 10 32 1 25 SS 2 13 T12209 Nut 10 32 Lock Self Seal 2 14 T12341 Screw SHSS 8 32 0 75 SS Lock 2 15 T14214 Socket Head Cap Screw 8 32 0 875 4 16 T11676 Fitting St...

Страница 14: ...lers DVC 345 Digital Valve Controller T11146 Stands Lab Stand 24 60 96 cm T15279 Lab Stand 8 20 32 cm with Mounting Rods T15449 Tubing Fittings Tube Support Entire Assembly with Luer Lock Fitting 0 375 0 95 cm OD T15225 Female Luer Lock Fitting Push In T11978 Misc Model 828 Wrench Set T16661 Rebuild Kits Valve Rebuild Kit T16662 Specifications Figure 8 Model 828 Dimensional Drawing ...

Страница 15: ... Unit Warranty 1 year from purchase date Warranty From date of purchase Dymax Corporation offers a one year warranty against defects in material and workmanship on all system components with proof of purchase and purchase date Unauthorized repair modification or improper use of equipment may void your warranty benefits The use of aftermarket replacement parts not supplied or approved by Dymax Corp...

Страница 16: ... of or used under license by Dymax Corporation U S A Please note that most dispensing system applications are unique Dymax does not warrant the fitness of the product for the intended application Any warranty applicable to the product its application and use is strictly limited to that contained in Dymax standard Conditions of Sale published on our website Dymax recommends that any intended applic...

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