Instructions - Parts Mix Manifold 3A0590G EN For mixing two component reactive materials with plural-component sprayers. For professional use only. Approved for use in explosive atmospheres. Part No. 262807 Mix Manifold, Single Flush Part No. 24M398 Quickset Mix Manifold, Dual Flush with Carriage, Gauges, and Static Mixers 7250 psi (50 MPa, 500 bar) Maximum Working Pressure 5000 psi (34.
Related Manuals Contents Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Important Two-Component Material Information . 6 Isocyanate Conditions . . . . . . . . . . . . . . . . . . . . . 6 Material Self-ignition . . . . . . . . . . . . . . . . . . . . . . 6 Keep Components A and B Separate . . . . . . . . . 6 Moisture Sensitivity of Isocyanates . . . . . . . . . . . 6 Foam Resins with 245 fa Blowing Agents .
Warnings Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When these symbols appear in the body of this manual, refer back to these Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this manual where applicable.
Warnings WARNING WARNING SKIN INJECTION HAZARD High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment. • Do not spray without tip guard and trigger guard installed. • Engage trigger lock when not spraying. • Do not point gun at anyone or at any part of the body. • Do not put your hand over the spray tip.
Warnings WARNING WARNING PRESSURIZED ALUMINUM PARTS HAZARD Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious chemical reaction and equipment rupture. Failure to follow this warning can result in death, serious injury, or property damage. • Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids containing such solvents. • Many other fluids may contain chemicals that can react with aluminum.
Important Two-Component Material Information Important Two-Component Material Information Isocyanate Conditions Spraying or dispensing materials containing isocyanates creates potentially harmful mists, vapors, and atomized particulates. Read material manufacturer’s warnings and material MSDS to know specific hazards and precautions related to isocyanates. Prevent inhalation of isocyanate mists, vapors, and atomized particulates by providing sufficient ventilation in the work area.
Important Two-Component Material Information Changing Materials • Changing material types used in your sprayer requires special attention to avoid equipment damage and downtime. • Always clean the fluid inlet strainers after flushing. • When changing between epoxies and urethanes or polyureas, disassemble and clean all fluid components and changes hose sets. • Check with your material manufacturer for chemical compatibility. • Most materials use ISO on the A side, but some use ISO on the B side.
Component Identification Component Identification B Key: A A B C D E F G H J K L M N P R S T U E D F P R S C G, H J, M★ J, M★ Resin (High Volume) Inlet (A material) Hardener (Low Volume) Inlet (B material) Solvent Inlet Valve, 1/4 npt(m) Manifold Dual Shutoff Handle Hardener Restrictor Adjustment Hardener Center Inject Tube (not shown; inside outlet H) Mix Manifold Outlet, 1/2 npt(f) with 3/8 npt(m) adapter Static Mix Housing Fluid Whip Hose Airless Spray Gun Static Mixing Element (not shown;
Overview Overview The left side of the mix manifold is intended for the major volume material, or the higher viscosity material if using a 1:1 volume mix. This side is referred to throughout the manual as the resin side or “A” side. The right side is referred to as the Hardener side or “B” side. The “B” side incorporates an adjustable restrictor for balancing the system back pressure and flow.
Installation Installation For assistance in setting up a plural component sprayer, contact your Graco distributor, to ensure that you select the proper type and size equipment for your system. See illustration in FIG. 1 on page 8. Fluid Inlets The A and B fluid inlets (A and B) are equipped with 1/2 npt(f) ball valves. Connect 1/2 in., 3/8 in., or 1/4 in. npsm(f) fluid hoses with adapter nipples as needed. See brochure 339361 for high pressure hose and fitting part numbers.
Grounding Grounding Your system must be grounded. Read warnings in your sprayer manual. Check your local electrical code. • Pump: use ground wire and clamp as instructed in your sprayer manual. • Air and fluid hoses: use only electrically conductive hoses. with a maximum of 500 ft. (150 m) combined hose length to ensure grounding continuity. Check electrical resistance of hoses. If total resistance to ground exceeds 29 megohms, replace hose immediately.
Operation Operation Pressure Relief Procedure 8. Hold a metal part of the gun firmly to a grounded metal pail. Trigger the gun to relieve pressure. Follow pressure relief procedure when you stop spraying or dispensing; and before cleaning, checking, servicing, or transporting equipment. Relieve A and B Fluid Pressure ti1953a 1. Engage the trigger lock. 9. Engage the trigger lock. ti1949a ti1949a 2. Turn off the sprayer. 3. Close the bleed-type master air valve. 4. Open the dual shutoff handle (E).
Operation Flushing 4. Open the solvent inlet valve (C). For the quickset manifold, close the A side flush valve (T). Read warnings and grounding instructions in your sprayer manual. If your system uses heaters, shut off the main power to the heaters and heated hose control before flushing. NOTICE To prevent fluid from setting up in the dispensing equipment, flush the system frequently. Be sure there is an adequate amount of solvent in the solvent supply before spraying.
Dispensing and Spraying 4. Disengage the trigger lock. 10. Engage the trigger lock. ti1949a ti1950a 11. Close solvent inlet valve (C). 12. Remove the gun from the hose. See gun manual to further clean the gun. 5. Hold the metal part of the gun firmly to a grounded metal pail with a lid to avoid splashing. Trigger the gun until mixed coating material is evident and purge solvent is gone. Dispensing and Spraying 1. Close the solvent inlet valve (C) and A side solvent valve (T) if equipped. ti1953a 6.
Volume Balancing the Mix Manifold Volume Balancing the Mix Manifold If the mix manifold is mounted on the machine, you do not need to adjust the restrictor (F). Leave open two turns minimum. Hose Selection for Feeding A Remote Mix Manifold When the manifold is remote, two things must be done to reduce momentary ratio errors that can occur due to the compressible nature of paint hoses.
Volume Balancing the Mix Manifold NOTE: Typical flow rates are usually 0.4-0.8 gpm (1.5-3 l/mn) per gun depending on tip size and viscosity. Use Table 2 and the examples provided to approximate how much pressure drop you can expect for every 50 ft (15.2 m) of hose at 1 gpm flow in that particular hose for a 1000 cps viscosity material. Adjust for your applications flow rate and viscosity. Table 2: Hose Selection by Pressure Drop Hose ID (in.) Pressure drop per 50 ft section per 1000 cps at 1 gal/min.
Maintenance Maintenance Clean Static Mixers See FIG. 1 on page 8. Typically, two static mixer housings are connected to the mix manifold outlet (H). These housings use plastic mix elements, available in a package of 25 (Part No. 248927). NOTE: The o-ring (18) is used as a retainer ring, not a seal. It may be scratched or deformed from pushing the screen (17) back in. NOTICE 21 Never use a swivel union on the mixer inlets.
Troubleshooting Troubleshooting 1. Relieve the pressure before you check or service any system equipment. Problem Little or no resin output. Little or no hardener output. Mixed fluid will not flush out. Hardener pressure higher than normal. Hardener pressure lower than normal. Spray pattern developing tails. 2. Check all possible causes and solutions in the troubleshooting chart before disassembling the manifold. Cause Solution Fluid inlet is plugged. Clean inlet; remove obstruction.
Repair Repair 5. Remove the seat (2e), ball (2d), spring (2c), and o-ring (2b) from housing (2a). 2f Follow pressure relief procedure when you stop spraying or dispensing; and before cleaning, checking, servicing, or transporting equipment. 2e 2b 2d NOTICE Be sure to label all fluid parts “resin” or hardener” when disassembling them. Doing so prevents interchanging resin and hardener parts during reassembly and prevents contamination of the materials and fluid path through the equipment.
Repair Remove Restrictor Assemble Restrictor 1. Note number of turns from open to closed position. Remove restrictor housing (15) from manifold (1). 1. Insert seat (10) with larger tapered end facing up in manifold (1). 2. Place restrictor housing (15) in a vice and remove nut (16). 16 15 16 12 1 15 13 (black) 14 (white) 1 11 r_258987_3a0590_4a 10 3. Unscrew stem (12) clockwise and remove from restrictor housing (15). 16 12 13 15 14 r_255684_256980_312749_12a 2.
Repair 3A0590G 21
Parts Parts 262807 Mix Manifold 6 8 19 2 20 21 20 22 22 19 2 19 16 5 5 12 15 2 3 11 2 1 2 1 Apply lubricant to o-rings and cartridge o-ring and end seal. 2 Apply taper thread pipe sealant to all non-swiveling threads except cartridge (2) and needle (12). 3 Apply anaerobic medium thread locker to external threads. 4 Torque to 125 ft-lbs (70 N•m). 5 Turn stem fully into manifold. Then back out two turns and lock in place. 6 Large end of inside taper faces out.
Parts 262807 Mix Manifold Ref. No. 1 2 2a 2b★ 2c★ 2d★ 2e★ 2f★ 3 4 5 6 7 8 9 10 11 12 13★ 14★ 15 16 19 20 21 22 26† 28 50✖ 51 Part No. Description Qty.
Parts 24M398 Quickset Mix Manifold 2 19 21 20 1 Apply lubricant to o-rings and cartridge o-ring and end seal. 2 Apply taper thread pipe sealant to all non-swiveling threads except cartridge (2) and needle (12). 3 Apply anaerobic sealant to external threads. 4 Torque to 125 ft-lbs (70 N•m). 5 Turn stem fully into manifold. Then back out two turns and lock in place. 6 Large end of inside taper faces out. 7 Push assembly hard against a flat surface to snap retainer seal (2f) in place.
Repair Kits 24M398 Quickset Mix Manifold Ref. No. 1 2 2a 2b★ 2c★ 2d★ 2e★ 2f★ 3 4 5 8 9 10 11 12 13★ 14★ 15 16 19 20 21 22 Part No. Description Qty.
Accessories Accessories 10,000 psi Fluid Pressure Gauge (2.5 in) Accessory Ports 114434 - 1/4 npt(m) back mount pressure gauge can be used in ports as gun pressure gauge. P1 and P2: 551387 - 1/4 npt bottom mount version. These 1/4 npt ports are located after “A” and “B” shutoff handle. High Pressure Hoses and Accessory Fittings Can be used for an inlet pressure gauge. These are before the fluid check valves and hardener restrictor. See brochure 339361 for parts and accessories.
Technical Data Technical Data Mix Manifolds US Metric 50 MPa, 500 bar 71° C Maximum A, B, and mix working pressure Maximum fluid temperature Fluid inlet Fluid outlet Solvent inlet valve 7250 psi 160° F 1/2 npt(f) ball valves 1/2 npt(f) with 3/8 npt(m) adapter nipple Maximum working pressure at solvent inlet 5000 psi Wetted parts Manifold block and internal parts Flush valves and fittings 3A0590G 1/4 npt(m) 34.
Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.
