Graco 307517T User Manual

Instructions–Parts List

Spring-Operated and Air-Operated, High Pressure

Mastic Fluid Regulators

5000 psi (34.4 MPa, 344 bar) Maximum Inbound Fluid Pressure

These regulators control downstream pressure for mastic or semi-solid material. Install a regulator ahead of each spray gun or extruder gun in a multiple outlet system. The regulator provides precise pressure control to each spray gun from a common header system. It also dampens flow surges when line valves are opened and during pump stroke changeover.

Important Safety Instructions

Read all warnings and instructions in this manual. Save these instructions. See page 2 for List of Models and Table of Contents.

307517T

ENG

Model 244740

TI1371

Model 903958

TI0345

Model 243700

Table of Contents

Warnings 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

Parts 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dimensions 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wiring Diagram 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Data 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accessories 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco Standard Warranty 34. . . . . . . . . . . . . . . . . . . . . .

Graco Information 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

List of Ambient Models

Part No. Series

903958 Series B Spring-operated,

961635 Series C Air-operated 250–4500 psi (2.8–31.0

244740 Series A Air–operated 250–4500 psi (2.8–31.0

C58318 Series A Air-operated 250–4500 psi (2.8–31.0

246642 Series A Air–operated 100–4500 psi (0.7–31.0

246687 Series A Air–operated 100–4500 psi (0.7–31.0

262549 Series A Air–operated 100–2600 psi (0.7–18.0

Regulator Operation

high range (low range spring is available, see page 33)

Regulated Fluid Pressure

1000–4500 psi (7.0–31.0 MPa, 70–310 bar)

MPa, 17–310 bar)

MPa, 7–310 bar)

MPa, 7–180 bar)

Maximum Inbound Air Pressure

100 psi (0.7 MPa, 7 bar) 12

100 psi (0.7 MPa, 7 bar) 14

100 psi (0.7 MPa, 7 bar) 16

100 psi (0.7 MPa, 7 bar) 22

100 psi (0.7 MPa, 7 bar) 24

60 psi (0.4 MPa, 4 bar) 24

Parts Page

List of Temperature Conditioned/Heated

Models

Part No.

243700 240 VAC Air-operated 250–3500 psi (1.7–24.1

C07720 Ambient Air-operated 250–3500 psi (1.7–24.1

918447 120 VAC Air–operated

246643 240 VAC Air-operated 100–3500 psi (0.7–24.1

246688 240 VAC Air-operated 100–3500 psi (0.7–24.1

2 307517

Heat Method

Regulator Operation

(Mounting Bracket Kit Available)

Regulated Fluid Pressure

MPa, 17–241 bar)

MPa, 17–241 bar) 250–3500 psi (1.7–24.1

MPa, 17–241 bar)

MPa, 7–241 bar)

Maximum Inbound Air Pressure

65 psi (0.45 MPa, 4.5 bar) 10

65 psi (0.45 MPa, 4.5 bar) 18

65 psi (0.45 MPa, 4.5 bar) 20

65 psi (0.45 MPa, 4.5 bar) 26

65 psi (0.45 MPa, 4.5 bar) 28

Parts Page

Symbols

Warning Symbol

WARNING

This symbol alerts you to the possibility of serious injury or death if you do not follow the instructions.

WARNING

SKIN INJECTION HAZARD

Spray from the gun, hose leaks, or ruptured components can inject fluid into your body and cause an extremely serious injury, including the need for amputation. Splashing fluid in the eyes or on the skin can also cause a serious injury.

D Fluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate surgi-

cal treatment.

D Do not point the spray gun/dispensing valve at anyone or at any part of the body.

D Do not put hand or fingers over the spray tip/nozzle.

Caution Symbol

CAUTION

This symbol alerts you to the possibility of damage to or destruction of equipment if you do not follow the corresponding instructions.

D Do not stop or deflect fluid leaks with your hand, body, glove, or rag.

D Do not “blow back” fluid; this is not an air spray system.

D Always have the tip guard and the trigger guard on the spray gun/dispensing valve when spraying/

dispensing.

D Be sure the gun trigger safety operates before spraying.

D Lock the gun/valve trigger safety when you stop spraying. D Follow the Pressure Relief Procedure in your separate equipment manuals whenever you: are

instructed to relieve pressure; stop spraying; clean, check, or service the equipment; and install or clean the spray tip.

D Tighten all the fluid connections before operating the equipment.

D Check the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately.

Permanently coupled hoses cannot be repaired; replace the entire hose.

Warnings are continued on the next page.

3307517

WARNING

FIRE AND EXPLOSION HAZARD

Improper grounding, poor air ventilation, open flames, or sparks can cause a hazardous condition and result in fire or explosion and serious injury.

D Ground all equipment in the work area. See Grounding in your separate system manual.

D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvent or the fluid being

sprayed.

D Extinguish all the open flames or pilot lights in the spray/dispensing area.

D Electrically disconnect all the equipment in the spray/dispensing area.

D Keep the spray/dispensing area free of debris, including solvent, rags, and gasoline.

D Do not turn on or off any light switch in the spray/dispensing area while operating or if fumes are

present.

D Do not smoke in the spray/dispensing area.

D Do not operate a gasoline engine in the spray/dispensing area. D If there is any static sparking while using the equipment, stop spraying/dispensing immediately.

Identify and correct the problem.

D Keep a fire extinguisher in the work area.

TOXIC FLUID HAZARD

Hazardous fluids or toxic fumes can cause a serious injury or death if splashed in the eyes or on the skin, swallowed, or inhaled.

D Know the specific hazards of the fluid you are using. Read the fluid manufacturer’s warnings.

D Store hazardous fluid in an approved container. Dispose of the hazardous fluid according to all

local, state, and national guidelines.

D Wear appropriate protective clothing, gloves, eyewear, and respirator.

Warnings are continued on the next page.

4 307517

WARNING

EQUIPMENT MISUSE HAZARD

INSTRUCTIONS

Equipment misuse can cause the equipment to rupture, malfunction, or start unexpectedly and result in a serious injury.

D This equipment is for professional use only. D Read all the instruction manuals, tags, and labels before operating the equipment. D Use the equipment only for its intended purpose. If you are uncertain about usage, call your Graco

distributor.

D Do not alter or modify this equipment. Use only genuine Graco parts and accessories. D Check the equipment daily. Repair or replace worn or damaged parts immediately. D Do not exceed the maximum working pressure of the lowest rated system component. This equip-

ment has a 5000 psi (34.4 MPa, 344 bar) maximum inbound fluid pressure.

D Use fluids that are compatible with the equipment wetted parts. See the Technical Data section of

all the equipment manuals. Read the fluid manufacturer’s warnings.

D Route the hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not

expose Graco hoses to temperatures above 180_F (82_C) or below –40_F (–40_C).

D Do not kink or over bend the hoses or use the hoses to pull equipment. D Wear hearing protection when operating this equipment. D Comply with all applicable local, state, and national fire, electrical, and other safety regulations. D If your spray or extruder gun has a lower pressure rating than the pump, be sure you adjust its fluid

regulator low enough to avoid exceeding the gun’s maximum working pressure.

MOVING PARTS HAZARD

Moving parts, such as the air motor piston, can pinch or amputate fingers.

D Do not operate the equipment with the air motor plates removed.

D Keep clear of any moving parts when starting or operating the equipment.

HOT SURFACE AND FLUID HAZARD

Heated fluid can cause severe burns and can cause equipment surfaces to become very hot.

D Wear protective gloves and clothing when operating this equipment in a heated system.

D Do not touch the metal heat sink when the surface is hot.

D Allow the equipment to cool thoroughly before servicing.

Some heated systems are designed to dispense Polyurethane (PUR) heated materials. PUR systems are supplied with ventilation hoods, and require proper ventilation and specially designed system components.

5307517

Installation

Air Regulator

Fluid Shutoff Valve

Fluid from Pump

Air Supply

Check Valve

Typical Installation (Air–Operated Fluid Regulator Shown)

General Information

NOTES:

D Reference numbers and letters in parentheses in

the text refer to the callouts in the figures and the parts drawing.

D The Typical Installation shows a typical dead-end

hookup. Regulators should be mounted close to the dispense point. The whip hose and nozzle must provide enough back pressure to stay within the adjustable range of the regulator. The majority of this restriction should be provided by the nozzle, to prevent static head pressure from increasing when the valve closes.

The regulators have one 3/4 npt(f) inlet port and two 3/4 npt(f) outlet ports for straight through or right angle flow. Install one regulator upstream from each gun on the line. A fluid pressure gauge can be installed in the second outlet port for precise monitoring of outlet pressure. Plug the port when not in use. See the Typical Installation, above, and the Dimensions section on page 30.

When the second outlet port is not used, it must be plugged with a steel plug, supplied, to prevent high pressure fluid from being emitted from the port. High pressure fluid can cause serious injury.

For an air-operated regulator, connect a grounded air supply hose to the 1/4 npt(m) adapter at the inlet of the air regulator.

Conversion Kit Installation

1. To relieve fluid pressure, shut off the power to the pump, trigger the gun to relieve pressure, and open any system bleed or drain valves. Remove the regulator from the line.

2. If installing a new spring, unscrew and remove the adjusting screw (6) and spring (9). Install the new spring and reinstall the screw.

3. If converting to an air-operated regulator, unscrew and remove the adjusting screw (6), spring (9), and spring guide (11) from the valve cylinder (7). Apply lubricant to the threads of the conversion kit diaphragm housing (101). Screw the housing into the valve cylinder, torque to 20 in-lb (2.25 NSm). See the Parts Drawing on page 12.

Fluid Regulator

Wall Bracket

Applicator

WARNING

6 307517

Operation

Adjusting the Regulator Outlet Pressure

WARNING

To reduce the risk of serious injury, never remove the adjusting screw or diaphragm housing when the valve is under pressure.

For a spring-operated regulator, turn the adjusting screw (6) counterclockwise to decrease and clockwise to increase pressure to the spray gun or extruder gun.

For an air-operated regulator, adjust the air regulator on top of the diaphragm (or other upstream air regulation device), to adjust the downstream fluid pressure up or down. See the chart at right for air vs. fluid pressure.

Adjust the pump air pressure and the mastic regulator pressure for the best dispensing combination. For the optimum performance, the inbound fluid pressure should be at least 600 psi (4.1 MPa, 41 bar) above the regulated fluid pressure.

NOTE: When using a fluid pressure gauge in the regulator outlet, partially relieve pressure by triggering the gun while reducing the regulator pressure. This helps ensure a correct gauge reading. For high accuracy applications, add a C06234 bleed fitting. This adjustable flow control replaces an outlet plug in the regulator. This allows the air regulator to hold a more accurate set point. Model C58318 comes with this bleed valve.

NOTE: Model 244740 is equipped with inlet and outlet pressure sensor ports. Pressure Sensor Kit 198082 can be used to monitor inlet and/or outlet pressures.

This chart shows the approximate air pressure needed to regulate the air-operated regulator to a given fluid outlet pressure.

Air Pressure Regulated Fluid Outlet

Pressure

psi bar kPa psi bar MPa

10 0.7 70 500 35 3.5 15 1.0 100 800 55 5.5 20 1.4 140 1100 76 7.6 25 1.7 170 1300 90 9.0 30 2.1 210 1600 110 11.0 40 2.8 280 2100 145 14.5 50 3.5 350 2700 186 18.6 60 4.2 420 3200 221 22.1 70 4.9 490 3800 262 26.2 80 5.6 560 4300 296 29.6

7307517

Maintenance

WARNING

To reduce the risk of serious injury, including fluid injection, or splashing in the eyes or on the skin, always relieve the air and fluid pressure in the system before adjusting, repairing, or removing the regulator from the system.

Flushing

D Flush before changing colors, before fluid can dry in

the equipment, at the end of the day, before storing, and before repairing equipment.

4. Open the fluid regulator fully.

a. Spring Operated Regulators Only. Open the

fluid regulator by turning the adjusting screw (6) fully clockwise.

b. Air Operated Regulator Only. Increase the air

regulator setting to fully open the fluid regulator. You will have to reset the fluid regulator’s pressure setting after flushing.

5. Supply solvent to the system. Set pump to the lowest possible pressure, and start pump.

6. Flush until thoroughly clean.

D Flush at the lowest pressure possible. Check

connectors for leaks and tighten as necessary.

D Flush with a fluid that is compatible with the fluid

being dispensed and the equipment wetted parts.

1. Record the pressure adjustment setting of the fluid regulator before flushing.

2. Shut off the pump and relieve fluid pressure in the system by triggering the gun and opening the back pressure regulator or other bypass valve.

3. Never exceed the maximum working pressure of the lowest rated system component. Remove the gauge if the flushing pressure will exceed the gauge range.

7. Adjust the fluid regulator to the desired setting.

a. Spring Operated Regulators Only: Turn the

adjustment screw (6) counterclockwise to return to the desired pressure setting.

b. Air Operated Regulator Only. Adjust the air

regulator to return to the desired fluid pressure setting.

Repair

Flush the regulator if possible, relieve fluid pressure, and remove the regulator from the system.

Disassemble the regulator. See the Parts Drawing on page 10. You do not have to disassemble the diaphragm housing of the air-operated regulator unless a problem is suspected.

8 307517

Notes

9307517

Model 243700 240 Volt Heated Regulator

Torque to 35–40 ft-lb (47–54 NSm)

Use Loctite

TL–242 on threads

Parts

Use LoctiteR 601 on threads.

Torque to 15–25 ft-lb (20–34 NSm)

Lips must face retaining ring (11)

Torque to 170–190 in–lb (19–21 NSm) in alternating pattern.

Ref. No. 9 Conversion Kit 915587

111

103

104

114

102

113

101

105

108

115

*13 *11

107

106

24, 25

10 307517

TI0342

Parts

Model 243700 230 Volt Heated Regulator Ref

No. Part No. Description Qty.

1 607499 CAP, end 1 2 607498 BAR, support bottom 1 3 904029 BALL, seat 1 4* 115938 PACKING, o-ring; fluoroelastomer 2 5 904030 SEAT, regulator 1 6 617434 HOUSING, regulator 1 7 607497 SUPPORT, piston 1 8 607500 CYLINDER, valve 1 9 915587 HOUSING, diaphragm

(See separate parts list) 1 10 220899 PISTON, regulator 1 11* 102386 RING, retaining 1 12* 115939 SEAL, mastic reg. fluoroelastomer 1 13* 607495 WASHER 1 14 607718 WASHER, seal 1 15 607496 SPACER 2 16 503143 SCREW, socket head;

5/16–18 x 2.75 in. 2 20 102726 PLUG, pipe, 3/4 in. npt 1 21 100171 SCREW, machine pnh 2 23 115861 BULKHEAD, housing 1 24 115860 INSERT, male 1 25 115862 CONNECTOR, male 5 26 C19269 SCREW, machine, slotted 2 28 C19197 WASHER, plain 2 29 C19800 SCREW, cap, socket hd 2 30 C34043 BRACKET 1 31 C34040 COVER 1 32 C19721 WASHER 1 33 C32255 SENSOR, temperature

See page 31 electrical diagram 1 34 198600 CARTRIDGE, heater

See page 31 electrical diagram 2 35 065345 WIRE, copper electrical (16AWG);

0.5 ft (0.15 m)

See page 31 electrical diagram 1 38 101674 TERMINAL, ring

See page 31 electrical diagram 1 39 112144 SCREW, mach pan hd

See page 31 electrical diagram 1 44 102974 NUT, hex 2

Diaphragm Housing / Conversion Kit 915587

Includes items 101–115

Ref No. Part No. Description Qty.

101 15U747 HOUSING, diaphragm 1 102 180978 WASHER, support 1 103 15U746 COVER, diaphragm 1 104 180979 DIAPHRAGM 1 105 108190 GAUGE, air pressure; 0–100 psi

(0–0.7 MPa, 0–7 bar) range 1 106 100403 PLUG, pipe; 1/8–27 npt(f) 1 107 110341 REGULATOR, air, relieving;

see manual 308167 1 108 103656 NIPPLE, pipe, hex; 1/8–27 npt 1 111 120730 CAPSCREW, hex washer hd;

1/4–20 x 1.5 12 113 180975 ROD, piston 1 114 103263 SCREW, mach; 1/4–20 x 3/4 in. 1 115 151519 NIPPLE, 1/4 x 1/8 npt 1

* Included in Repair Kit 233131.

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