Graco 15X304 User Manual

Instructions-Parts
Air Actuated Dispense Valve
To dispense plural component fluids and solvents. For professional use only.
Part No. 15X303
High Pressure Dispense Valve
Part No. 15X304
Low Pressure Dispense Valve
300 psi (2.1 MPa, 21.0 bar) Maximum Fluid Working Pressure 100 psi (0.7 MPa, 7 bar) Maximum Air Working Pressure
312782C
ENG
Important Safety Instructions
Read all warnings and instructions in this manual. For complete warnings and instructions see your proportioning system manual. Hazard symbols refer to specific procedure risks. Save all instruc­tions.
15X303 High Pressure Valve
15X304 Low Pressure Valve
TI11663A
TI11581A

Related Manuals

Contents
Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Connect the Air Lines . . . . . . . . . . . . . . . . . . . . . 3
Connect the Fluid Lines . . . . . . . . . . . . . . . . . . . 3
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Pneumatic Schematic
(used with ProMix 2KS) . . . . . . . . . . . . . . . . 5
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Settings and Adjustments . . . . . . . . . . . . . . . . . . 6
Pressure Relief Procedure . . . . . . . . . . . . . . . . . 6
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Clean the Dispense Valve Daily . . . . . . . . . . . . . 6
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
15X303 High Pressure Valve . . . . . . . . . . . . . . . 9
15X304 Low Pressure Valve . . . . . . . . . . . . . . . 10
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 12
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . 12
Related Manuals
See the following manuals for additional information on the dispense valves.
Manual Description
312775 ProMix 2KS Manual System Installation 312776 ProMix 2KS Manual System Operation 312777 ProMix 2KS Manual System Repair-Parts 312778 ProMix 2KS Automatic System Installation 312779 ProMix 2KS Automatic System Operation 312780 ProMix 2KS Automatic System
Repair-Parts 312781 Fluid Mix Manifold 312782 Dispense Valve 312783 Color and Catalyst Change Valve Stacks 312787 Color Change Module Kit
2 312782C

Installation

Installation
FIG. 2 shows the dispense valves installed in an elec­tronic 2-component proportioning system. In this exam­ple, the dispense valves are used as dose valves for components A and B (DVA, DVB), an air purge valve (APV), and a solvent purge valve (SPV).
F
IG. 3 shows a pneumatic schematic of a complete
2-component proportioning system, in which the dis­pense valves are also used as A and B dump valves, and color change valves.

Connect the Air Lines

Clean all lines and connections of dirt, burrs, etc., and blow them out with clean air before connecting them to the system. The air supply line should contain an air fil­ter to remove harmful dirt and moisture from the com­pressed air.
Use a normally closed 4-way air solenoid valve to con­trol the dispense valve. Attach 5/32 in. (4 mm) OD air supply lines from the 4-way valve to the air inlets of the dispense valve.

Accessories

Two accessories are required in your system: a bleed-type master air valve and a fluid drain valve. These accessories help reduce the risk of serious injury including fluid injection, splashing in the eyes or on the skin, and injury from moving parts if you are adjusting or repairing the pump.
The bleed-type master air valve is required only with air-powered pumps. It relieves air trapped between this valve and the pump after the air regulator is shut off. Trapped air can cause the pump to cycle unexpectedly. Locate the valve close to the pump.
The fluid drain valve helps relieve fluid pressure in the displacement pump, hose, and dispense valve; trigger­ing the valve to relieve pressure may not be sufficient.

Connect the Fluid Lines

Connect a grounded fluid line from the pump or meter to the 1/4 npt fluid inlet of the dispense valve adapter.
If fluid is supplied by a pump, install a fluid pressure reg­ulator upstream of the dispense valve. A fluid regulator enables you to control fluid pressure more accurately than by regulating air pressure to the pump.
Install a fluid filter to remove particles and sediment which may clog the nozzle.

Grounding

To reduce the risk of static sparking, ground the pump and all other components used or located in the dis­pensing area. Check your local electrical code for detailed instructions for your area and type of equipment and be sure to ground all of these components.
Fluid hoses: use only electrically conductive hoses with a maximum of 500 feet (150 m) combined hose length to ensure grounding continuity.
Dispense valve: obtain grounding through connec­tion to a properly grounded fluid hose and pump.
312782C 3
Installation
15X303 High Pressure Valve
5/32 in. (4 mm) OD air tube
fitting, to close
5/32 in. (4 mm) OD air tube
fitting, to open
Valve position sight port
FIG. 1. Valve Air Ports
Seal weep port and Lubrication Cup connection
TI11581A
15X304 Low Pressure Valve
Actuation indicator
Optional air open port
5/32 in. (4 mm) OD air tube fitting, to open
TI11663A
MA
APV
APL SPL
IG. 2: Typical Installation
F
Key:
MA Component A Meter DVA Component A Dose Valve MB Component B Meter DVB Component B Dose Valve MS Solvent Meter SPV Solvent Purge Valve
DVA
BSLASL
DVB
APV Air Purge Valve ASL Component A Supply Line BSL Component B Supply Line APL Air Purge Line SPL Solvent Purge Line
MB
MS
SPV
TI12556a
4 312782C
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