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Summary of Contents for dymax 826
- Page 2 Dymax standard Conditions of Sale. Dymax recommends that any intended application be evaluated and tested by the user to ensure that desired performance criteria are satisfied. Dymax is willing to assist users in their performance testing and evaluation. Data sheets are available for valve controllers or pressure pots upon request.
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Page 3: Table Of Contents
Specific Safety Considerations ................... 5 Product Overview........................5 Description of the Model 826 Dispensing Valve ..............5 Special Features and Benefits of the Model 826 ..............6 Disposable Fluid Path ......................7 Over-Pinch Adjustment ...................... 7 Suck-Back Feature ......................7 Assembly and Setup ...................... -
Page 4: Introduction
Model 826 Dispensing Valve User Guide Introduction Introduction to the User Guide This guide describes how to assemble, use, and maintain the Dymax Model 826 dispensing valve safely and efficiently. Intended Audience Dymax prepared this user guide for experienced process engineers, maintenance technicians, and manufacturing personnel. -
Page 5: General Safety Considerations
To learn about the safe handling and use of dispensing fluids, obtain and read the SDS for each fluid before using it. Dymax includes an SDS with each adhesive sold. SDS for Dymax products can be requested through the Dymax website. -
Page 6: Special Features And Benefits Of The Model 826
Model 826 Dispensing Valve User Guide Figure 1. Model 826 Internal Component Diagram Special Features and Benefits of the Model 826 Feature Benefit Over-Pinch Prevents tubing damage, allowing users to secure millions of cycles from Adjustment tubing before replacement is required... -
Page 7: Disposable Fluid Path
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,... -
Page 8: Parts Included In The Model 826 Dispensing Valve
Model 826 Dispensing Valve User Guide Figure 2. Model 826 Pinch Valve Parts Included in the Model 826 Dispensing Valve ■ Model 826 pinch valve ■ 0.25" [0.63 cm] OD black, polyethylene tubing Note: Teflon®, silicone, and other tubing materials, along with a variety of fittings, are also available from Dymax. -
Page 9: Mounting
(including polyurethane, PVC, and silicone) are available for order through Dymax. This valve is compatible with a maximum tubing size of 0.25" (0.63 cm) OD. Remove the Tube Support Assembly by loosening the three 8-32 x 3/8" Socket Head Cap Screws (Figure 3, A). -
Page 10: Material Flow & Suck-Back Adjustment
Material Flow & Suck-Back Adjustment Adjusting Material Flow Figure 5. Model 826 Flow Adjustment Procedure Components It is very important that the Tube Support (Figure 5, M) be firmly in place for the valve to function properly. Check to be sure that the Tube Support is flush against the Valve Body (Figure 5, F). - Page 11 Model 826 Dispensing Valve User Guide flow will usually provide a correct setting. The Pinch Stop Screw is now correctly set up to provide the minimal wear and tear on the Tube. After adjusting the Pinch Stop Screw (Figure 5, K), loosen the Locking Nut (Figure 5, B) and turn the Piston Stop Screw (Figure 5, C) clockwise until you feel resistance.
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Page 12: Operating The Dispensing Valve
(Figure 7, F). This stop controls the amount the tube opens, which in turn controls the rate of flow through the tube. These actions, combined with nozzle size (if a nozzle is used), fluid pressure, and the amount of time the 826 valve is open, governs the amount of fluid... -
Page 13: Shut Off
Model 826 Dispensing Valve User Guide dispensed. Simultaneous with the action of the Upper Piston (Figure 7, A), the blunt Lower Piston (Figure 7, D) moves forward until it stops against the Adjusting Screw (Figure 7, E). This causes the piston to partially occlude the Tubing (Figure 7, B). -
Page 14: Troubleshooting
Model 826 Dispensing Valve User Guide Troubleshooting Table 1. Troubleshooting Chart for Model 826 Dispensing Valve Problem Possible Cause Corrective Action The supply air pressure is too low Increase the supply air pressure The valve does Material is cured in the tip... -
Page 15: Spare Parts And Accessories
Model 826 Dispensing Valve User Guide Spare Parts and Accessories Item Part Number Air Regulators Filter Regulator T16307 High-Precision Regulator T16629 Controllers DVC-345 Digital Valve Controller T11146 Stands Lab Stand – 24" [60.96 cm] T15279 Lab Stand – 8" [20.32 cm] with Mounting Rods... - Page 16 T13542 Screw, SHSS, 8-32, 0.75, SS, T12341 Lock Spring, 0.480 OD x 0.038 WR x T14935 1L, K9.5 T11702 Fitting, Straight, 10-32, 0.25 OD 1 T16661 Model 826 Wrench Set Kit *Parts included in Model 826 Valve Rebuild Kit T17835...
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Page 17: Specifications
Model 826 Dispensing Valve User Guide Specifications Property Specification T17586 - Model 826 valve with 0.25" [0.63 cm] OD Part Numbers Polyethylene tubing Valve Type Pinch with disposable fluid path Construction Material Anodized Aluminum Operating Air Pressure 60-90 psi [4.1-6.3 bar] Maximum Inlet Fluid Tubing dependent;... - Page 18 Model 826 Dispensing Valve User Guide Figure 9. Model 826 Dimensional Drawing...
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Page 19: Warranty
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 Corporation, will void any effective warranties and may result in damage to the equipment. - Page 20 DuPont. The data contained in this bulletin is of a general nature and is based on laboratory test conditions. Dymax Europe GmbH does not warrant the data contained in this bulletin. Any warranty applicable to products, its application and use is strictly limited to that contained in Dymax Europe GmbH’s General Terms and Conditions of Sale published on our homepage http://www.dymax.com/de/pdf/dymax_europe_general_terms_and_conditions_of_sale.pdf.
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