Graco 312781E User Manual

Instructions-Parts

312781E

Fluid Mix Manifold

For proportional mixing of plural component coatings. For professional use only.

See page 2 for model information, including maximum working pressure.

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.

Part No. 289695

Part No. 256875

TI14362a

Part No. 262398

TI16517a

TI11577a

Part No. 262399

TI16516a

Related Manuals

Contents

Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Part No. 289695, for ProMix 2KS Proportioner . 14 Part No. 256875, for ProMix 3KS Proportioner . 16 Part No. 262398, for ProMix 2KE Proportioner,

Sequential Dosing . . . . . . . . . . . . . . . . . . . 18

Part No. 262399, for ProMix 2KE Proportioner,

Dynamic Dosing . . . . . . . . . . . . . . . . . . . . . 19

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 22

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . 22

Related Manuals

See the following manuals for additional information on the fluid mix manifold.

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

313881 ProMix 3KS Manual and Automatic Sys-

tem Installation 313882 ProMix 3KS Manual System Operation 313883 ProMix 3KS Manual and Automatic Sys-

tem Repair-Parts 313885 ProMix 3KS Automatic System Operation 3A0868 ProMix 2KE Pump-Based Operation 3A0869 ProMix 2KE Meter-Based Operation 3A0870 ProMix 2KE Repair-Parts 312782 Dispense Valve

Models

Maximum Working

Pressure

Part No.

289695 4000 (28, 280) For ProMix 256875 4000 (28, 280) For ProMix 262398 4000 (28, 280) For ProMix 262399 4500 (31, 310) For ProMix

psi (MPa, bar)

Standard

Integrator

Description

™

2KS Proportioner 50cc

™

3KS Proportioner 50cc

™

2KE Proportioner, sequential dosing 50cc

™

2KE Proportioner, dynamic dosing 0cc

Size

2 312781E

Installation

Air Connections

See FIG. 1, FIG. 2, or FIG. 3.

1. Connect 5/32 in. (4 mm) OD air tubes from the valve solenoids to the air inlets of each valve.

2. ProMix 2KS and ProMix 3KS systems only: Connect an air supply line to air purge valve (APV) inlet (1/4 in. ID tube is supplied, with tag).

3. Pressurize the system with air, and check for leaks, then relieve air pressure.

Fluid Connections

See FIG. 1, FIG. 2, or FIG. 3.

1. Connect the solvent supply line to the 1/4 npt(f) solvent purge valve (SPV) inlet.

2. Connect the component A supply line to the meter A (MA) 1/4 npt(f) inlet.

3. Connect the component B supply line to the meter B (MB) 1/4 npt(f) inlet.

4. ProMix 3KS systems only: Connect the component C supply line to the meter C (MC) 1/4 npt(f) inlet.

5. Connect the gun fluid supply line between the static mixer tube (SM) and the gun fluid inlet.

NOTE: On ProMix 3KS systems only, connect the fluid hose (supplied with your system) between the ProMix 2KS static mixer and the fluid inlet of the ProMix 3KS. Then connect the gun hose to the static mixer of the ProMix 3KS.

Grounding

The equipment must be grounded. Grounding reduces the risk of static and electric shock by providing an escape wire for the electrical current due to static build up or in the event of a short circuit.

Connect a ground wire from a true earth ground to the mix manifold or the mix manifold mounting surface if there is electrical continuity between it and the mix manifold.

Follow the specific grounding instructions in the system and individual component manuals. The system may have special grounding requirements for the mix manifold.

A ground wire and clamp, part no. 223547, is available from Graco.

Flush Before Using Equipment

The equipment was tested with lightweight oil, which is left in the fluid passages to protect parts. To avoid contaminating your fluid with oil, flush the equipment with a compatible solvent before using the equipment. See Purging, page 7.

312781E 3

Installation

RVA

DVA

DVB

RVB

APV

SVA SVB

Key: ProMix 2KS Fluid Station

MA Component A Meter (not

included in mix manifold) DVA Component A Dose Valve RVA Component A Sampling

Val ve SVA Component A Shutoff

DVC

Val ve MB Component B Meter (not

included in mix manifold) DVB Component B Dose Valve RVB Component B Sampling

Val ve

CPV

RVC

SVC

TI14382a

FIG. 1. ProMix 2KS and ProMix 3KS Wall Mount Fluid Stations

SPV

SVB Component B Shutoff

Valve MS Solvent Meter (accessory) SPV Solvent Purge Valve APV Air Purge Valve SM Static Mixer FI 2KS Fluid Integrator AT Air Purge Valve Air Supply

Tube

Key: ProMix 3KS Fluid Station

MC Component C Meter (not included

in mix manifold) DVC Component C Dose Valve RVC Component C Sampling Valve SVC Component C Shutoff Valve CPV Component C Purge Valve SM Static Mixer FI 3KS Fluid Integrator

3KS fluid inlet. Connect fluid supply line from 2KS fluid manifold outlet here.

Connect fluid supply line to gun.

TI12556a

4 312781E

Key:

MA Component A Meter DVA1 Component A Dose Valve DVA2 Second Color/Catalyst Valve DVA3 Third Color/Catalyst Valve SVA Solvent Valve A CVA Meter A Check Valve MB Component B Meter DVB Component B Dose Valve SVB Solvent Valve B CVB Meter B Check Valve SM Static Mixer FI Fluid Integrator Assembly

DVA3 (behind)

Installation

SVA

SVB

DVA1

DVB

DVA2 and

CVB

CVA

FIG. 2. ProMix 2KE Fluid Controls, Sequential Dosing

SVA

DVA

ti15699a

SVB

DVB

ti15697a

Key:

PA Component A Pump DVA Component A Dose Valve SVA Solvent Valve A

IG. 3. ProMix 2KE Fluid Controls, Dynamic Dosing

312781E 5

PB Component B Pump DVB Component B Dose Valve SVB Solvent Valve B SM Static Mixer

Installation

Setup the Fluid Manifold for Dynamic Dosing

If you will be operating using dynamic dosing, the fluid manifold must be setup properly for your application. Order the 15U955 Injection Kit (accessory).

NOTE: For ProMix 3KS, order two 15U955 Injection Kits.

See your proportioner manuals for setup instructions, and to select the appropriate size restrictor for your selected flow and ratio.

Table 1: Restrictor Sizes

Size Code Orifice Size Part No.

2* .020 15U936 3* .030 15U937

4* .040 15U938 5✓ .050 15U939 6✓ .060 15U940

7* .070 15U941 8✓ .080 16D554

* These restrictors are included in Injection Kit

15U955.

✓ These restrictors are optional sizes, not included in

the Injection Kit.

6 312781E

Operation

Purging

Follow the purging procedure in the proportioner system manual.

NOTES:

• Purge before using equipment, which was tested with lightweight oil that could contaminate your material.

• Purge before changing colors, before fluid can dry in the equipment, at the end of the day, before storing, and before repairing equipment.

• Purge at the lowest pressure possible. Check connectors for leaks and tighten as necessary.

• Use a cleaning fluid that is compatible with the fluid being dispensed and the equipment wetted parts.

NOTICE

Purge the sampling valves with solvent immediately after using them to keep material from hardening inside.

Operation Guidelines

Manifold operation is dependent on the system it is connected to. Follow the system operation instructions.

NOTE: After the system has been shut down for a period of time, it is normal for component solenoids and valves to cycle rapidly until system pressure is built back up when restarted.

• Purge air from fluid lines when components are

loaded.

• Adjust fluid supply pressure if the fluid output is

too low or too high.

• Adjust flow rate with fluid supply pressure regula-

tors (optional) or dispense valves. Flow rate should be the same at the spray gun regardless of whether component dispense valves are open. Pressure adjustments of each component will vary with fluid viscosity. Start with the same fluid pressures, then adjust as needed. See Mix Manifold Valve Set- tings, page 8.

• Adjust gun atomizing air pressure as needed.

NOTE: Do not use the first 4-5 oz. (120-150 cc) of material as it may not be thoroughly mixed due to alarms while priming the system.

312781E 7

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