Graco Scuba Diving Equipment 222121 User Manual

Instructions – Parts List  
STAINLESS STEEL, WATERBASE COMPATIBLE  
Fluid Pressure Regulator  
307886K  
For use in air–assisted system to regulate pressure to gun.  
Fluid regulator valve is cartridge mounted for quick, in–line replacement.  
Model 222121, Series B  
1500 psi (10.3 MPa, 103 bar) Maximum Fluid Inlet Pressure  
150–1200 psi (1.0–8.3 MPa, 10.4–83 bar) Regulated Fluid Pressure Range  
Patent Pending  
Important Safety Instructions  
Read all warnings and instructions in this manual.  
Save these instructions.  
Table of Contents  
Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
Parts Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
Performance Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
Dimensional Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
7531A  
GRACO INC.ąP.O. BOX 1441ąMINNEAPOLIS, MNą55440-1441  
Copyright 1988, Graco Inc. is registered to I.S. EN ISO 9001  
 
WARNING  
INJECTION HAZARD  
Spray from the gun, leaks or ruptured components can inject fluid into your body and cause extremely  
serious injury, including the need for amputation. Fluid splashed in the eyes or on the skin can also  
cause 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 stop or deflect leaks with your hand, body, glove or rag.  
D Keep your hands away from the end of the drain valve when opening it.  
D Lock the gun trigger safety when you stop spraying.  
D Follow the Pressure Relief Procedure on page 5 if the spray tip clogs and before cleaning,  
checking or servicing the equipment.  
D Follow the Pressure Relief Procedure on page 5 before removing the regulator’s adjusting knob.  
D Do not pressurize the system when the fluid regulator’s adjusting knob is removed.  
D Tighten all fluid connections before operating the equipment.  
D Check the hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.  
Do not repair high pressure couplings; you must replace the entire hose.  
D Use only Graco approved hoses. Do not remove the spring guard that is used to help protect the  
hose from rupture caused by kinks or bends near the couplings.  
TOXIC FLUID HAZARD  
Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,  
inhaled, or swallowed.  
D Know the specific hazards of the fluid you are using.  
D Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,  
state and national guidelines.  
D Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and  
solvent manufacturer.  
307886  
3
 
Installation  
KEY  
A
B
C
D
E
F
Air regulator  
Bleed-type master air valve  
Pump  
Fluid filter & drain valve  
Main fluid supply line  
Gun fluid supply line  
E
M
F
K
G Fluid regulator  
H
Fluid pressure gauge  
& drain valve  
J
C
J
K
L
Air-assisted spray gun  
Back pressure valve  
Fluid return line  
A B  
L
M Main circulating line  
Fluid supply container  
N
K
NOTE:  
The Typical Installation  
drawings are only guides for  
selecting and installing a  
circulating or direct system.  
They are not actual system  
designs. Contact your Graco  
distributor for the particular  
type and size system best  
suited for your needs.  
H
Multiple Circulating Spray Station  
D
G
N
C
B
A
Install the fluid regulator(s) (G) in the spray gun fluid supply  
line (F) as shown in the Typical Installation drawing above or  
at right. Connect only one spray gun or dispensing valve to  
each fluid regulator.  
J
G
H
Using pipe sealant on pipe threads, connect the fluid supply  
line (F) to the fluid regulator’s 1/4 npt(f) inlet. Connect the line  
from the gun (J) to the regulator’s 1/4 npt(f) outlet.  
F
Make sure the direction of fluid flow agrees with the IN and  
OUT markings on the regulator body.  
D
The regulator was tested in lightweight oil. Flush the entire  
system with a solvent compatible with the fluid being sprayed  
or dispensed, then test the system.  
Single Direct Spray Station  
4
307886  
 
Operation  
Pressure Relief Procedure  
Operating the Regulator  
WARNING  
CAUTION  
D To avoid contaminants clogging or damaging the  
regulator, you must clean and test the new  
system thoroughly before you admit fluid to the  
regulator.  
INJECTION HAZARD  
The system pressure must be manually  
relieved to prevent the system from  
starting or spraying accidentally. Fluid  
under high pressure can be injected through the  
skin and cause serious injury. To reduce the risk of  
an injury from injection, splashing fluid, or moving  
parts, follow the Pressure Relief Procedure  
whenever you  
D Always use the lowest possible air and fluid  
pressures for your application. High pressures  
can cause premature spray tip and pump wear.  
NOTES:  
D Are instructed to relieve the pressure  
D The fluid pressure regulator controls pressure  
D Stop spraying  
downstream from its outlet.  
D Check or service any of the system equipment  
D Install or clean the spray tip  
D If using an accessory fluid pressure gauge (H), to  
ensure a correct gauge reading, relieve the spray  
gun line pressure after reducing the regulator  
pressure.  
1. Lock the gun trigger safety and any other  
equipment safety locks.  
1. Back the regulator adjusting screw (18) out (turn  
counterclockwise) until there is no spring pressure.  
Relieve the spray gun line pressure.  
2. Turn off the power to the pump.  
3. Unlock the gun trigger safety.  
2. Turn the adjusting screw clockwise to increase the  
fluid pressure.  
4. Close the bleed-type master air valve (required in  
your system).  
3. Adjust the pump air pressure and fluid regulator for  
the desired spray pattern. Use the lowest possible  
air and fluid pressures for your application.  
5. Hold a metal part of the gun firmly to the side of a  
grounded metal pail, and trigger the gun to relieve  
pressure.  
4. In a circulating system, also adjust the back  
pressure valve.  
6. Lock the gun trigger safety.  
5. Record all the settings for future reference.  
7. Slowly open the drain valve (required in your  
system), and have a container ready to catch the  
drainage.  
8. Leave the drain valve open until you are ready to  
spray again.  
If you suspect that the spray tip or hose is completely  
clogged, or that pressure has not been fully relieved  
after following the steps above, very slowly loosen the  
tip guard retaining nut or hose end coupling, and  
relieve pressure gradually, then loosen completely,  
then clear the tip or hose.  
307886  
5
 
Maintenance  
Flushing  
Cartridge Replacement  
D Flush before changing colors, before fluid can dry in  
the equipment, at the end of the day, before storing,  
and before repairing equipment.  
NOTE: Kit 222140 replaces the fluid regulator valve  
cartridge. See page 10 for the parts included.  
WARNING  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure on page 5.  
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. Relieve the pressure.  
1. Record the pressure adjustment setting of the  
regulator before flushing.  
2. Remove the cartridge by loosening the valve  
housing (1) and pulling the cartridge assembly out  
of the regulator housing (24). See Fig. 1.  
WARNING  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure on page 5.  
3. Install the new cartridge assembly into the  
regulator housing (24). Torque the valve housing  
(1) to 30 to 35 ft-lbs (41 to 47 NSm).  
2. Shut off the pump and relieve fluid pressure in the  
system by triggering the gun and opening the back  
pressure valve or other bypass valve.  
3. Never exceed the maximum working pressure of  
the lowest rated system component.  
4. Open the fluid regulator by turning the adjusting  
screw (18) fully clockwise.  
5. Supply solvent to the system. Set pump to the  
lowest possible pressure, and start pump.  
6. Flush until thoroughly clean.  
24  
7. Adjust the fluid regulator to return to the desired  
fluid pressure setting.  
Cleaning  
NOTE: Do not allow fluid to settle in the system.  
WARNING  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure on page 5.  
1*  
Torque to  
30 to 35 ft-lb  
(41 to 47 N-m)  
Fig. 1  
1. Relieve the pressure.  
2. Remove the regulator. Clean and inspect all parts.  
CAUTION  
Handle the hard carbide parts, ball (5), valve actuator  
(9), and seat (6) carefully to avoid damaging them.  
Damage will cause poor operation and leakage.  
6
307886  
 
Maintenance  
4. Remove the diaphragms (26 and 27). Inspect the  
Diaphragm & Valve Actuator Replacement  
carbide pin in the valve actuator (9) for wear.  
Replace if necessary.  
WARNING  
5. Install the new diaphragms, with the PTFE  
diaphragm (26) facing toward the regulator  
housing (24), as shown in Fig. 2.  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure on page 5.  
6. Install the valve actuator (9) and six cap screws  
(19). Torque the cap screws in the order shown in  
Fig. 2.  
1. Relieve the pressure.  
2. Remove the regulator from the fluid line.  
3. Remove the six cap screws (19) from the regulator  
housing (24). See Fig. 2.  
18  
24  
16  
1*  
Torque to  
30 to 35 ft-lb  
(41 to 47 N-m)  
19  
HytrelR requires uniform compression.  
Torque each bolt no more than 1/8 turn at a  
time in the sequence shown. Repeat pattern  
until uniform torque of 60–70 in-lb (6.8–7.9  
N-m) is obtained. HytrelR diaphragm should  
never extrude more than 1/16 in. on a side.  
27  
HytrelR  
(off-white)  
26  
Torque Sequence  
9
PTFE  
(white)  
IN  
6
1
4
3
HytrelR is a registered trademark of the DuPont Company.  
2
5
OUT  
7533A  
Fig. 2  
307886  
7
 
Notes  
8
307886  
 
Troubleshooting  
NOTE: Check all possible remedies in the table below  
before you disassemble the valve.  
WARNING  
To reduce the risk of serious bodily injury, including  
fluid injection, splashing in the eyes or on the skin,  
or injury from moving parts, always follow the  
Pressure Relief Procedure on page 5 whenever  
the pump is shut off, before installing, cleaning,  
adjusting, removing or servicing the valve or any  
part of the system, and whenever you stop  
spraying.  
Problem  
Cause  
Solution  
No pressure regulation  
Damaged diaphragm (26 or 27).  
Replace diaphragm. See page 7.  
Damaged valve actuator (9).  
Replace valve actuator. See page 7.  
Replace diaphragm. See page 7.  
Pressure creeps above  
setting  
Damaged diaphragm (26 or 27).  
Ball (5) or seat (6) leaking or dirty.  
Replace the cartridge or clean seat.  
See page 7.  
Pressure drops below setting Empty/clogged supply line.  
Fill/flush supply line.  
Using valve beyond its rated flow  
capacity. See page 13.  
Install valve for each spray gun or  
dispensing valve.  
Fluid leaks from under spring Loose spring housing.  
Tighten screws (19) in sequence and to  
torque shown in Fig. 2 on page 7.  
housing (16)  
Damaged diaphragm (26 or 27).  
Replace diaphragm. See page 7.  
307886  
9
 
Parts Drawing  
24  
18  
lubricate  
25{  
17  
19  
Torque in sequence  
shown in Fig. 2.  
7*  
lubricate  
16  
8*  
Apply medium strength sealant.  
Torque to 60 to 70 in-lb (7 to 8 N-m).  
14  
lubricate  
6*  
4*  
15  
5*  
3*  
14  
lubricate  
2*  
lubricate  
12  
1*  
13  
lubricate  
Torque to 30 to 35 ft-lb  
(41 to 47 N-m)  
7532A  
**27  
**26  
* Valve Cartridge Repair Kit 222140  
Includes the following:  
Ref No.  
Qty  
**9  
1
2
3
4
5
6
7
8
1
1
1
1
1
1
1
1
10  
307886  
 
Parts List  
Accessories  
Ref.  
No.  
Accessories must be purchased separately.  
Use only GENUINE GRACO PARTS AND  
ACCESSORIES.  
Part No. Description  
Qty.  
1*  
2*  
3*  
187882  
102982  
111737  
HOUSING, valve; SST  
O-RING; PTFE  
SPRING, compression,  
conical; SST  
GASKET, seat, nylon  
BALL; carbide  
SEAT, valve; carbide  
O-RING, PTFE  
RETAINER, spring; SST  
ACTUATOR, valve;  
carbide & SST  
GUIDE, plunger  
PLUNGER, spring  
GUIDE, spring  
SPRING, compression  
HOUSING, spring  
NUT, jam; 3/8–24 NF  
SCREW, adjustment  
SCREW, cap, sch; 1/4–20 UNRC 6  
HOUSING, regulator; SST  
LABEL, warning  
1
1
802072 Fluid Pressure Gauge  
0 to 1500 psi (0 to 10.3 MPa, 0 to 103 bar)  
pressure range  
1
1
1
1
1
1
4*  
5*  
6*  
7*  
8*  
9**  
183876  
101680  
183875  
107505  
188001  
235204  
1/4–18 npt(m), with gauge, also order  
166421 pipe nipple, 1/4–18 npt; SST  
110290 Tee, female; 1/4–18 npt; SST  
110182 Fluid Pressure Gauge with Dampener  
0 to 2000 psi (0 to 1.4 MPa, 0 to 138 bar)  
pressure range  
1
1
1
2
1
1
1
1
12  
13  
14  
15  
16  
17  
18  
19  
24  
25{  
183881  
183883  
183882  
109141  
183880  
101448  
236590  
103926  
187885  
185052  
1/4 npt(f), with gauge, also order  
166421 pipe nipple, 1/4–18 npt; SST  
185281 tee, male; 1/4–18 npt; SST  
110191 Female Cross Fitting  
For installing an additional outlet line.  
1/4–18 npt; SST  
1
1
1
1
26** 192051  
27** 192052  
DIAPHRAGM, PTFE  
DIAPHRAGM, HytrelR  
214037 High Pressure Fluid Drain Valve  
5000 psi (34 MPa, 345 bar) maximum working  
pressure  
*
Included in Valve Cartridge Repair Kit 222140.  
** Recommended “tool box” repair parts. Keep on  
hand to reduce down time. Diaphragms, Ref. No.  
26 and 27, are included in Regulator Repair Kit  
239789.  
Use at fluid outlet to help relieve pressure.  
1/4 npt (mbe) carbon steel with PTFE seals  
{
Additional warning labels available at no charge.  
222515 Bracket Kit  
To attach fluid regulator to cart, pail, or wall units.  
307886  
11  
 
 
Performance Charts  
Test Media: 65 centipoise at 1500 psi  
(10.3 MPa, 103 bar) inbound pressure  
Test Media: 1000 centipoise at 1500 psi  
(10.3 MPa, 103 bar) inbound pressure  
psi  
(MPa, bar)  
1200  
psi  
(MPa, bar)  
1200  
(8.3, 83)  
(8.3, 83)  
1000  
1000  
(7, 69)  
(7, 69)  
800  
800  
(5.5, 55)  
(5.5, 55)  
600  
600  
(4.2, 41)  
(4.2, 41)  
400  
(2.8, 28)  
400  
(2.8, 28)  
200  
(1.4, 14)  
200  
(1.4, 14)  
0
0
0
1
0
1
0.2 0.4 0.6 0.8  
1.2 1.4 1.6  
0.2  
(0.8)  
0.4  
(1.5)  
0.6  
(2.3)  
0.8  
(3)  
GPM  
GPM  
(3.8)  
(liter/min)  
(0.8) (1.5) (2.3) (3) (3.8) (4.5) (5.3) (6)  
(liter/min)  
FLUID FLOW  
FLUID FLOW  
Dimensions  
BOTTOM VIEW  
2.0 in.  
(50.8 mm)  
2.22 in.  
(56.4 mm)  
IN  
bracket  
holes  
bracket  
holes  
1/4–20  
2.0 in.  
(50.8 mm)  
UNC–2B  
bracket  
holes  
7.3 in.  
(185.42 mm)  
OUT  
1/4–18 npt  
inlet & outlet  
0.87 in.  
(22.1 mm)  
1.16 in.  
(29.5 mm)  
12  
307886  
 
Technical Data  
Maximum fluid inlet pressure . . . . . . . . . . . . . . 1500 psi  
(10.3 MPa, 103 bar)  
Regulated pressure range . . . . . . . . . . 150 to 1200 psi  
(1 to 8.3 MPa, 10.4 to 83 bar)  
Maximum flow capacity . . . . . . . . . . 1.5 gpm (5.7 lpm)  
Fluid viscosity . . . . . . . . . . . . . . . . . 1 to 1000 centipoise  
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5 lb (2.04 Kg)  
Wetted parts . . . . . . . . . . . . . 304 & 316 stainless steel,  
PTFE, nylon, tungsten carbide  
HytrelR is a registered trademark of the DuPont  
Company.  
307886  
13  
 
Graco Standard Warranty  
Graco warrants all equipment 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. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written  
recommendations.  
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by  
faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or  
substitution of non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of  
Graco equipment with structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture,  
installation, operation or maintenance of structures, accessories, equipment or materials not supplied by Graco.  
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for  
verification of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The  
equipment will be returned to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect  
in material or workmanship, repairs will be made at a reasonable charge, which charges may include the costs of parts, labor, and  
transportation.  
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT  
NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.  
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 consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the  
date of sale.  
Graco makes no warranty, and disclaims all implied warranties of merchantability and fitness for a particular purpose in connection  
with accessories, equipment, materials or components sold but not manufactured by Graco. These items sold, but not manufactured  
by Graco (such as electric motors, switches, hose, etc.), are subject to the warranty, if any, of their manufacturer. Graco will provide  
purchaser with reasonable assistance in making any claim for breach of these warranties.  
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment  
hereunder, or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract,  
breach of warranty, the negligence of Graco, or otherwise.  
FOR GRACO CANADA CUSTOMERS  
The parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings  
entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties  
reconnaissent avoir convenu que la rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures  
judiciaires exécutés, donnés ou intentés à la suite de ou en rapport, directement ou indirectement, avec les procedures concernées.  
Graco Information  
TO PLACE AN ORDER, contact your Graco distributor, or call one of the following numbers  
to identify the distributor closest to you:  
1–800–328–0211 Toll Free  
612–623–6921  
612–378–3505 Fax  
All written and visual data contained in this document reflects the latest product information available at the time of publication.  
Graco reserves the right to make changes at any time without notice.  
MM 307886  
Graco Headquarters: Minneapolis  
International Offices: Belgium, China, Japan, Korea  
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441  
PRINTED IN U.S.A. 307886 10/1988, Revised 6/2005  
14  
307886  
 

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