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GENERAL INFORMATION 

 

The Model 1206 Dispense Valve is engineered for applications which require volumetric consistency. The 
1206 allows operation with material supply pressures up to 100 psi (6.9 bar). Material viscosity dispensing 
capabilities range from very thin material to high

-

viscosity epoxies and metal filled pastes with viscosities 

above 1,000,000 cps (1000 Pa•s). The Model 1206 ships complete with the following:

 

 

  Model 1206 Dispense Valve 
  Two 3

-

foot (.9m) sections of Pneumatic Air Line 

  Seal Kit 
  Luer Lock Needle Adapter 
  Operating and Maintenance Manual 

 

SAFETY INFORMATION 

 
This product should be used only

 

by employees who have been given appropriate training and safety 

warnings as set forth in this manual. Read completely before operating. 
 

WARNING

: Do not exceed 100 psi (6.9 bar) air pressure to the dispense valve. Do not exceed 100 psi (6.9 

bar) material inlet pressure to the dispense valve; higher pressures may cause a hazard or serious injury. 
Note: The recommended pneumatic operating system pressure is 70 psi (4.8 bar) clean/dry air, if your system 
uses a syringe feed; do not exceed 60psi (4.1 bar) air pressure to the syringe inlet. 
 
Toxicity and flammability hazards depend upon the product being dispensed by this unit, and the user should 
take appropriate safety precautions as indicated on the MSDS of the product. 
 
Always wear safety glasses. 
 

ILLUSTRATION REFERENCES 

 

Throughout this manual you will find references by illustration item number to the illustrations in the manual.  
The references are indicated by parentheses around a number such as:  (7).   Illustrations represent typical 
valve configurations.  The drawings for your exact model are inserted at the back of the manual and include 
the part numbers for ordering replacement parts. 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 

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Summary of Contents for DISPENSIT 1206

Page 1: ...Instructions Dispensit 1206 332091A EN Dispense Valve Important Safety Instructions Read all warnings and instructions in this manual Save these instructions ...

Page 2: ...e Valve 4 Air Controller 4 Operating Procedures 5 Dry System Checkout 5 Wet System Checkout 5 Operation Adjustments 6 Periodic Maintenance 6 Dispensing Needle 6 Disassembly 6 Model 1206 General Illustration 7 Assembly 8 Troubleshooting 9 Model 1206 Recommended Spare Parts 10 Accessories 11 General Accessories 11 Model 1206 Accessories 11 General Guidelines for O rings and U cup Seals 12 Warranty 1...

Page 3: ...si 6 9 bar air pressure to the dispense valve Do not exceed 100 psi 6 9 bar material inlet pressure to the dispense valve higher pressures may cause a hazard or serious injury Note The recommended pneumatic operating system pressure is 70 psi 4 8 bar clean dry air if your system uses a syringe feed do not exceed 60psi 4 1 bar air pressure to the syringe inlet Toxicity and flammability hazards depe...

Page 4: ...owing the metering rod to rise when the rod passes the inlet material is pushed in to fill the dispense cavity The system is again in the normal ready state SETUP PROCEDURE MOUNTING DISPENSE VALVE The1206 dispense valve can be mounted in a variety of ways Consult the factory for an application review AIR CONTROLLER Operation of the 1206 requires a controller that provides the following A minimum o...

Page 5: ...ng required for the application Begin with material pressure set at 15 psi 1 0 bar and gradually increase material pressure until material feeds through the valve Note When utilizing a remote reservoir the reservoir delivery tubing and fittings must be compatible with the material being dispensed and capable of withstanding the dispensing pressure WARNING Do not apply air pressure to the Dispense ...

Page 6: ...e if damaged or clogged Replacement needles can be ordered for the Model 1206 Dispense Valve by specifying the proper part number seen in the Recommended Spare Parts section in this manual DISASSEMBLY Refer to the illustration below and the drawings for your exact model at the back of this manual WARNING When disassembling multiple valves do not mix parts Metering rods are matched with their sleev...

Page 7: ...eal 4 O Ring 15 U cup Seal 5 Seal Separator Block 16 Washer 6 Seal Separator Rod 17 Top Cylinder Block 7 Metering Rod Sleeve Assembly 18 Socket Head Set Screw 8 O Ring 19 O Ring 8A Plastic Washer 188 rod models 20 Posipak Seal 9 O Ring 21 Metering Rod 10 Needle Adapter 22 O Ring some models 11 Check Valve Spring ALTERNATE NEEDLE ADAPTER ...

Page 8: ...o the Top Cylinder Block 17 7 Install the upper Washer 16 then the upper Retaining Ring 3 8 Install the lubricated O ring 4 on the Piston 2 9 Install the lubricated O ring 19 into the Top Cylinder Block 17 10 Insert the Piston 2 with O ring 4 part way into the Top Cylinder Block 17 carefully so that the piston threads do not damage the Posipak Seal 14 Position the piston to accept the head of the ...

Page 9: ... any air trapped in it A second cause could possibly be that the material is not filling the metering rod chamber fully and in time Check the reservoir pressure it may be too low for the type of material being dispensed and or the cycle time may be too fast Cycle time is a function of the air supply controller To adjust follow the directions found in the controller operating manual SLOW OR SLUGGIS...

Page 10: ...nt Needles for Single Needle Block Models Needle length shown is length projecting from LL hub Other lengths available Quantity Description Needle Part Number Needle Sampler Package 10 each of 14 16 18 20 and 22 E4000025 50 Needle LL 14 ga x Pack of 50 E4000001 50 Needle LL 14 ga x 1 Pack of 50 E4000014 50 Needle LL 15 ga x Pack of 50 E4000004 50 Needle LL 16 ga x Pack of 50 E4000088 50 Needle LL ...

Page 11: ... Consult your Dispensit dealer or the factory for details MODEL 1206 ACCESSORIES Cycle Detection The cycle detection option for the 1206 lets your controller act upon detection of valve stroke cycle completion by use of a fiber optic sensor Item Description A5010014 Cycle Detection PNP sensor type A5010042 Cycle Detection NPN sensor type On Board Syringe Feed Assemblies Syringe feed assemblies can...

Page 12: ...it may not return to the proper size Do not use any sharp tools or objects to install O rings U cup Seal Guidelines Always replace a U cup seal with the identical one in size durometer hardness type and material of construction Always be alert to the location and size of each U cup seal as many look alike and be careful not to mix them Often similar sizes may be used in various locations on the eq...

Page 13: ......

Page 14: ...will be made at a reasonable charge which charges may include the costs of parts labor and transportation Graco s sole obligation and buyer s sole remedy for any breach of warranty shall be as set forth above The buyer agrees that no other remedy including but not limited to incidental or consequential damages for lost profits lost sales injury to person or property or any other incidental or cons...

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