Graco Inc Surge Protector 224892 User Manual

Instructions–Parts List  
308178F  
ENG  
Dynamic Surge Suppressor  
For use with double-diaphragm pumps and low-pressure reciprocating pumps.  
For professional use only. Not for use in explosive atmospheres.  
100 psi (0.7 MPa, 7 bar) Maximum Fluid Working Pressure  
100 psi (0.7 MPa, 7 bar) Maximum Air Inlet Pressure  
Important Safety Instructions  
Read all warnings and instructions in this manual.  
Save these instructions.  
Model 224892, Series A  
aluminum, with PTFE diaphragm  
Model 224893, Series A  
aluminum, with buna–N diaphragm  
Model 224894, Series B  
stainless steel, with PTFE diaphragm  
Model 224895, Series B  
stainless steel, with buna–N diaphragm  
Table of Contents  
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
Operation and Maintenance . . . . . . . . . . . . . . . . . . . 7  
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
Parts Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
Parts Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  
Repair Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
Dimensional Drawing . . . . . . . . . . . . . . . . . . . . . . . 15  
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16  
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
Graco Phone Number . . . . . . . . . . . . . . . . . . . . . . . 20  
WARNING  
Hazard of Using Fluids Containing Haloge-  
nated Hydrocarbons  
Never use 1.1.1–trichloroethane, methylene  
chloride, other halogenated hydrocarbon solvents  
or fluids containing such solvents in aluminum  
models 224892 or 224893. Such use could result  
in a chemical reaction, with the possibility of  
explosion, which could cause death, serious bodily  
injury, and/or substantial property damage.  
0903  
Consult your fluid suppliers to ensure that the fluids  
being used are compatible with aluminum and zinc  
parts.  
 
WARNING  
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.  
D Graco does not manufacture or supply the reactive chemical components that may be used in  
this equipment and is not responsible for injury or property loss, damage, expense or claims  
(direct or consequential) that arise from the use of such chemical components.  
FIRE AND EXPLOSION HAZARD  
Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and  
result in a fire or explosion and serious injury.  
D Ground the equipment. See Grounding on page 4.  
D If there is any static sparking or you feel an electric shock while using this equipment, stop  
pumping immediately. Do not use the equipment until you identify and correct the problem.  
D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid  
being pumped.  
D Keep the work area free of debris, including solvent, rags, and gasoline.  
D Electrically disconnect all equipment in the work area.  
D Extinguish all open flames or pilot lights in the work area.  
D Do not smoke in the work area.  
D Do not turn on or off any light switch in the work area while operating or if fumes are present.  
D Do not operate a gasoline engine in the work area.  
D Never use 1.1.1–trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or  
fluids containing such solvents in pressurized aluminum equipment. Such use could result in a  
chemical reaction, with the possibility of explosion.  
MOVING PARTS HAZARD  
Moving parts, such as the air motor piston in the pump, can pinch or amputate your fingers.  
D Keep clear of all moving parts when starting or operating the pump.  
D Before servicing this surge tank, follow the Pressure Relief Procedure on page 4 to prevent  
the equipment from starting accidentally.  
United States Government safety standards have been adopted under the Occupational Safety and Health Act.  
You should consult these standards––particularly the General Standards, Part 1910.  
3
308178  
 
Installation  
and other flammable substances, whether you are  
System Pressure  
pumping indoors or outdoors, and can cause a fire or  
explosion and serious bodily injury and property  
damage.  
The maximum fluid working pressure of this surge  
suppressor is 100 psi (0.7 MPa, 7 bar) at 100 psi  
(0.7 MPa, 7 bar) incoming air pressure. Never exceed  
100 psi (0.7 MPa, 7 bar) fluid or air pressure to the  
surge suppressor. Do not exceed the maximum  
working pressure of any component or accessory used  
in the system.  
If you experience any static sparking or even a slight  
shock while using this equipment, stop pumping  
immediately. Do not use the system again until the  
problem has been identified and corrected.  
To reduce the risk of static sparking, ground the pump,  
surge suppressor, and all other equipment used or  
located in the pumping area. Check your local  
electrical code for detailed grounding instructions for  
your area and type of equipment. Ground all of this  
equipment:  
Pressure Relief Procedure  
WARNING  
PRESSURIZED EQUIPMENT HAZARD  
To reduce the risk of serious bodily injury, including  
splashing fluid or solvent in the eyes or on the skin,  
always follow this procedure before you check,  
adjust, clean, or repair any part of the system.  
D Pump: See your separate pump instruction  
manual.  
D Surge suppressor: Secure a ground wire (Y) to the  
surge suppressor with the grounding screw (Z)  
located on the side of the housing. See Fig. 1.  
Connect the clamp end of the ground wire to a true  
earth ground. To order a ground wire and clamp,  
order Part No. 208950.  
1. Close the air regulator by turning counterclockwise  
as far as possible.  
2. Disconnect the air supply line to the surge  
suppressor.  
3. Open the dispensing valve, if used.  
D Air and fluid hoses: Use only grounded hoses with  
a maximum of 500 ft (150 m) combined hose length  
to ensure grounding continuity.  
4. Open the fluid drain valve to relieve all fluid  
pressure; have a container ready to catch the  
drainage.  
D Air compressor: Follow the manufacturer’s  
recommendations.  
Fluid Compatibility  
D All solvent pails used when flushing: Follow the  
local code. Use only metal pails, which are  
conductive. Do not place the pail on a  
nonconductive surface, such as paper or  
cardboard, which interrupts the grounding  
continuity.  
Be sure all fluids and solvents used are chemically  
compatible with the wetted parts and non-wetted parts  
shown in the Technical Data section on page 16.  
Failure of the diaphragm may cause non-wetted parts  
to be exposed to fluid. Always read the fluid and  
solvent manufacturer’s literature before using them  
with this equipment.  
D Fluid supply container: Follow the local code.  
Grounding  
Y
Z
WARNING  
This equipment must be grounded. Read and  
carefully follow the text of FIRE AND EXPLOSION  
HAZARD on page 3 before operating the surge  
suppressor.  
Static electricity is created by the fluid flowing through  
the pump and hose. If the equipment is not properly  
grounded, sparking may occur, and the system may  
become hazardous. Sparks can ignite fumes from  
solvents and the fluid being pumped, dust particles,  
0942  
Fig. 1  
4
308178  
 
Installation  
The installation shown below is only a guide for selecting and installing system components; it is not an actual  
system design. Contact your Graco distributor for assistance in planning a system to suit your needs.  
KEY  
A
B
C
D
E
F
Surge suppressor  
Air pressure gauge  
Fluid supply line  
Fluid outlet line  
Air supply line  
Husky 715 pump  
Fluid drain valve  
Bleed-type master air valve  
(required for pump and surge  
suppressor)  
J
K
L
Air regulator  
Air Filter  
Bleed-type master air valve  
(for accessories)  
M Surge suppressor ground wire  
(required)  
Pump ground wire  
(required)  
G
H
N
G
N
L
K
J
H
F
C
M
E
A
B
D
DETAIL A: Venting Exhaust Air to a Remote Container  
grounded air exhaust hose  
container  
for remote  
air exhaust  
muffler  
0906  
5
308178  
 
Installation  
General Information  
Air Exhaust Ventilation  
The surge suppressor uses air pressure and a  
diaphragm to maintain a consistent fluid outlet  
pressure from a double diaphragm or low-pressure  
reciprocating pump. During normal flow, the  
suppressor air pressure and fluid pressure are in  
equilibrium. A sharp increase in fluid pressure causes  
the air inlet port to open, increasing air pressure on the  
diaphragm and returning the system to equilibrium.  
Conversely, a sharp decrease in fluid pressure causes  
the air exhaust port to open, decreasing air pressure  
on the diaphragm and allowing the system to return to  
equilibrium.  
WARNING  
Be sure to read TOXIC FLUID HAZARD and FIRE  
AND EXPLOSION HAZARD on page 3, before  
operating this equipment.  
Be sure the system is properly ventilated for your  
type of installation. When pumping flammable or  
hazardous fluids, you must vent the surge suppres-  
sor exhaust air to a safe place, away from people,  
animals, food handling areas, and all sources of  
ignition. If the diaphragm ruptures, the fluid will be  
exhausted along with the air. Place a container at  
the end of the air exhaust line to catch the fluid.  
See Detail A on page 5.  
Installation  
1. Read this entire manual before installing or  
operating the surge suppressor.  
The minimum size for the air exhaust hose is 3/8 in.  
(10 mm) ID x 15 ft (4.6 m). If a longer hose is required,  
use a larger diameter hose.  
2. The surge suppressor fluid inlet must be  
connected to the pump’s fluid outlet. If the pump  
is aluminum or steel, the surge suppressor may  
be plumbed directly to the outlet, using 3/4 npt  
fittings. If the pump is acetal or polypropylene,  
place the surge suppressor on the floor or some  
other solid, level surface near the pump, and  
connect the surge suppressor inlet to the pump  
outlet with a 3/4” ID hose and 3/4 npt fittings.  
1. Remove the muffler from the surge suppressor  
exhaust port. Install an exhaust hose in the  
exhaust port, and connect the muffler to the other  
end of the hose. Avoid sharp bends or kinks in the  
hose. See Detail A on page 5.  
2. Place a container at the end of the air exhaust line  
to catch fluid in case the diaphragm ruptures.  
CAUTION  
Do not plumb the surge suppressor directly onto the  
fluid outlet of an acetal or polypropylene pump.  
Those pumps cannot support the weight of the  
suppressor and will suffer damage or rupture.  
WARNING  
Never operate the surge suppressor without the  
muffler or an air exhaust line installed in the air  
exhaust port. If the air exhaust port is left open and  
the diaphragm shaft works loose from the bolt, the  
shaft could be propelled out of the housing, caus-  
ing injury.  
3. Connect an air line from the pump’s air regulator to  
the air inlet of the surge suppressor. In systems  
using a 1:1 ratio pump, the air pressure supplied to  
the suppressor will be the same as that supplied to  
the pump.  
4. Use a compatible, liquid thread sealant on all male  
threads. Tighten all connections firmly to avoid air  
or fluid leaks.  
CAUTION  
To avoid pump damage, do not overtighten the  
fittings to the pump.  
6
308178  
 
Operation and Maintenance  
Operating the Surge Suppressor  
WARNING  
1. Be sure the system is properly grounded. Read  
and follow FIRE AND EXPLOSION HAZARD, on  
page 3.  
To prevent overpressurization of the surge sup-  
pressor, never exceed 100 psi (0.7 MPa, 7 bar)  
fluid inlet pressure or 100 psi (0.7 MPa, 7 bar) air  
inlet pressure. In systems using pumps with a ratio  
greater than 1:1, reduce the air inlet pressure to  
the pump as necessary to keep the fluid and air  
inlet pressures to the surge suppressor within  
these limits.  
2. Check all fittings to be sure they are tight. Be sure  
to use a compatible liquid thread sealant on all  
male threads, and do not overtighten the fittings  
into the pump.  
3. Check that the muffler or air exhaust line is  
securely connected to the air exhaust port on the  
top of the housing.  
CAUTION  
In systems using pumps with a ratio greater than 1:1,  
fluid may escape into the surge suppressor air line  
and contaminate the air supply if the diaphragm fails.  
Installation of a check valve in the air line will prevent  
fluid contamination of the air line.  
WARNING  
Never operate the surge suppressor without the  
muffler or an air exhaust line installed in the air  
exhaust port. If the air exhaust port is left open and  
the diaphragm shaft works loose from the bolt, the  
shaft could be propelled out of the housing, caus-  
ing injury.  
Flushing the System  
Flush the system regularly, using a compatible solvent.  
Do not allow fluid to dry in the pump or surge  
suppressor. Always flush the pump and surge  
suppressor before storing them for any length of time.  
4. Start the pump as explained in your separate  
pump manual. In systems using a 1:1 ratio pump,  
the air pressure supplied to the suppressor will be  
the same as that supplied to the pump.  
Place the pump suction tube in the solvent container.  
Run the pump long enough to thoroughly clean it, the  
surge suppressor, hoses, and any guns or valves used  
in the system. Close the pump air regulator. Remove  
the suction hose from the solvent.  
5. Allow the pump to cycle slowly until all air is  
pushed out of the surge suppressor and lines, and  
the pump is primed. The system is now ready for  
normal operation.  
NOTES:  
Shutdown  
When using a pump with a ratio greater than 1:1, the  
air pressure supplied to the surge suppressor and the  
air pressure supplied to the pump must be at the same  
ratio as the pump to prevent overpressurization of the  
surge suppressor. See the following examples.  
Remove the suction hose from the fluid container and  
run the pump until the fluid is forced out of the system.  
Then shut off the air supply immediately.  
D In a system using a 2:1 ratio pump, air pressure  
supplied to the surge suppressor should be twice  
as high as air pressure to the pump. If the air  
pressure supplied to the pump is 50 psi (0.34 MPa,  
3.4 bar), you should supply 100 psi (0.7 MPa,  
7 bar) air pressure to the surge suppressor.  
D In a system using a 4:1 ratio pump, air pressure  
supplied to the surge suppressor should be four  
times as high as air pressure to the pump. If the  
air pressure supplied to the pump is 25 psi  
(0.17 MPa, 1.7 bar), you should supply 100 psi  
(0.7 MPa, 7 bar) air pressure to the surge  
suppressor.  
7
308178  
 
Troubleshooting  
Relieve the pressure.  
WARNING  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure on page 4.  
Check all possible problems and causes before  
disassembling the pump or surge suppressor.  
PROBLEM  
CAUSE  
Clogged air line or air inlet  
SOLUTION  
Surge suppressor operates  
erratically  
Inspect; clear.  
Air line connected to pressure gauge Connect air line to air inlet  
port (see page 11).  
Clogged fluid supply line, fluid inlet or Inspect; clear.  
fluid outlet  
Diaphragm (13 or 21[) ruptured  
Replace. See page 9.  
Unbalanced air pressures between Ratio of air inlet pressure to surge  
pump and surge suppressor  
suppressor and air inlet pressure to  
pump must be the same as pump ra-  
tio, but air pressure to surge sup-  
pressor must never exceed 100 psi  
(0.7 MPa, 7 bar). See page 7.  
Air bubbles in fluid  
Fluid in exhaust air  
Fluid supply line loose  
Tighten.  
Diaphragm (13 or 21[) ruptured  
Manifold o-rings (16) leaking  
Diaphragm (13 or 21[) ruptured  
Replace. See page 9.  
Replace. See page 10.  
Replace. See page 9.  
Diaphragm plates (12 or 32) loose or Tighten or replace. See page 9.  
damaged  
Damaged shaft (11) or shaft o-rings Replace. See page 9.  
(19)  
Pump leaks air or fluid from cover (7) V-clamp (6) is loose  
Tighten V-clamp. See page 9.  
[ Ref. No. 21, the PTFE diaphragm, is used only in Surge Suppressor Models 224892 and 224894.  
8
308178  
 
Service  
Servicing the Shaft O-Rings  
Servicing the Diaphragm and Shaft  
1. Relieve the pressure.  
NOTE: Diaphragm Repair Kits are available. See page  
14. Parts included in the kits are marked with  
asterisks. The kits include some parts which are not  
used on the surge suppressor. Use all the applicable  
parts in the kit for the best results.  
WARNING  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure on page 4.  
1. Relieve the pressure.  
2. Place a container under the surge suppressor,  
disconnect the hoses, and turn the surge  
suppressor on end to drain the fluid.  
WARNING  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure on page 4.  
3. Remove the v-clamp (6). See the Parts Drawing  
on page 12.  
2. Place a container under the surge suppressor,  
disconnect the hoses, and turn the surge  
suppressor on end to drain the fluid.  
4. Separate the housing (8) from the cover (7) to  
expose the diaphragm and shaft assembly. Pull  
the diaphragm and shaft out of the housing. See  
Fig. 2.  
3. Remove the v-clamp (6). See the Parts Drawing  
on page 12.  
5. Remove the three o-rings (19) from the shaft (11).  
4. Separate the housing (8) from the cover (7) to  
expose the diaphragm and shaft assembly. Pull  
the diaphragm and shaft out of the housing. See  
Fig. 2.  
6. Lubricate the three new o-rings (19*) with  
lithium-based grease and install them in the  
grooves on the shaft.  
7. Lubricate the inner diameter of the housing (8) with  
lithium-based grease. Slide the shaft and  
diaphragm assembly into the housing (8). Place  
the cover (7) on the housing (8).  
5. Hold the bolt (14) steady with a wrench. Wrap a  
rag around the shaft (11) to protect it, then  
unscrew the shaft from the bolt using locking  
pliers. Remove the nut (31), upper diaphragm  
plate (32*), diaphragm (13), PTFE diaphragm  
(Models 224892 and 224894 only), lower  
8. Position the clamp (6) around the housing (8) and  
cover (7). Apply thread lubricant to the threads of  
the v-clamp, secure with the nuts, and torque to 6  
to 10 ft-lb (1.4 to 13.6 N.m). See the Parts  
Drawing on page 12.  
diaphragm plate (12), and o-ring (15) from the bolt.  
Clean and inspect all parts for wear or damage.  
9
308178  
 
Service  
6. Place the o-ring (15*) on the bolt (14). Install the  
Servicing the Fluid Inlet and Outlet  
lower diaphragm plate (12), with the flat side facing  
NOTE: Repair Kits are available to service the internal  
parts of the fluid inlet and outlet. See page 14 for  
ordering information. Parts included in the kits are  
marked with three asterisks, for example (16***). The  
kits include some parts which are not used on the  
surge suppressor. Use all the applicable parts in the kit  
for the best results.  
down.  
7. Install the diaphragm (13**), making certain that  
the side marked AIR SIDE is facing up on the bolt.  
On Models 224892 and 224894 only, install the  
PTFE diaphragm (21**) first, then the backup  
diaphragm (13**).  
1. Relieve the pressure.  
8. Install the upper diaphragm plate (32*) with the flat  
side facing up. Apply thread sealant to the bolt  
(14). Hold the bolt steady with a wrench, and  
screw the nut (31) onto the bolt (14). Torque to 5 to  
7 ft-lb (7 to 10 N-m).  
WARNING  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure on page 4.  
9. Wrap the shaft (11) with a rag to protect it, and use  
locking pliers to screw the shaft onto the bolt (14).  
Torque to 10 to 15 in-lb (1.1 to 1.7 N-m).  
2. Place a container under the surge suppressor,  
disconnect the hoses, and turn the surge  
suppressor on end to drain the fluid.  
10. Lubricate the inner diameter of the housing (8) with  
lithium-based grease. Slide the shaft and  
diaphragm assembly into the housing (8). Place  
the cover (7) on the housing (8).  
3. Remove the bolts (2), lockwashers (3), and nuts  
(1) holding one manifold (9) to the cover (7).  
Repeat for the other side. See Fig. 2.  
11. Position the clamp (6) around the housing (8) and  
cover (7). Apply thread lubricant to the threads of  
the v-clamp, secure with the nuts, and torque to 6  
to 10 ft-lb (8 to 14 N.m). See the Parts Drawing  
on page 12.  
4. Pull the two o-rings (16), guide (18) and stop (17)  
out of the cover (7). Repeat for the other side.  
Clean and inspect all parts for wear or damage.  
5. Push one o-ring (16***) all the way into the cavity  
of the cover (7). Install the stop (17***) with the  
beveled side facing inward. Install the guide (18***)  
with the flat end facing inward, then install the  
second o-ring (16***) around the outer edge of the  
guide. Repeat for the other side.  
6. Install the manifold (9) on the cover (7) with the  
chamfer facing outward. Secure with the bolts (2),  
lockwashers (3), and nuts (1). Torque to 3 to 6 ft-lb  
(4 to 8 N.m). Repeat for the other side.  
10  
308178  
 
Service  
19*  
Lubricate inner  
diameter of housing  
(8) with lithium-based  
grease  
Lubricate with  
lithium-based grease  
11  
Torque to 10 to 15 in-lb  
(1.1 to 1.7 N-m)  
31  
Torque to 5 to 7 ft-lb  
(7 to 10 N-m)  
8
Air inlet  
1/4 npt(f)  
32*  
Flat side faces up  
6
7
13**  
12*  
Flat side  
faces down  
2
1
3
Torque to  
3 to 6 ft-lb  
(4 to 8 N-m)  
21**  
(models  
224892 and  
224894 only)  
*15**  
14*  
9
Chamfer  
faces out  
***16  
16***  
Apply sealant to  
threads.  
***18 17***  
Flat end Beveled side  
faces faces inward  
inward  
0905  
Fig. 2  
11  
308178  
 
Parts Drawing  
Model 224892, Series A, aluminum surge suppressor with PTFE diaphragm  
Model 224893, Series A, aluminum surge suppressor with buna–N diaphragm  
Model 224894, Series A, stainless steel surge suppressor with PTFE diaphragm  
Model 224895, Series A, stainless steel surge suppressor with buna–N diaphragm  
10  
Torque to  
10 to 15 in-lb  
(1.1 to 1.7 N.m)  
33  
Apply sealant tape to threads  
8
30  
29  
6
4
Torque to 6 to 10 ft-lb  
(8 to 14 N.m)  
19  
Lubricate with  
*
The replacements for these parts are available  
in Diaphragm Plate Kit 239158. See page 14.  
Purchase this kit separately.  
lithium-base grease  
11  
Torque to  
10 to 15 in-lb  
(1.1 to 1.7 N.m)  
** The replacements for these parts are available  
in Diaphragm Repair Kits D05001 and D05007.  
See page 14. Purchase the applicable kit  
separately.  
*** The replacements for these parts are available  
in Repair Kits D05210 and D05270. See page  
14. Purchase the applicable kit separately.  
31  
Torque to  
5 to 7 ft-lb  
(7 to 10 N.m)  
18*** (acetal, 186692)  
(sst, 15V282)  
*32  
Flat side faces up  
17*** (acetal, 186691)  
(sst, 15V281)  
(PTFE, 183542) **13  
(buna–N, 190148)  
(108839) **21  
Used on Models 224892 and  
224894 only  
2
Torque to  
3 to 6 ft-lb  
(4 to 8 N.m)  
*12  
Flat side faces down  
(110004) *15**  
3
9
Chamfer  
faces out  
*14  
16*** (110636)  
Apply sealant to threads  
1
7
05476  
12  
308178  
 
Parts Lists  
Model 224892, Series A  
Model 224894, Series A  
aluminum surge suppressor with PTFE diaphragm  
stainless steel surge suppressor with PTFE  
diaphragm  
Model 224893, Series A  
aluminum surge suppressor with buna–N  
diaphragm  
Model 224895, Series A  
stainless steel surge suppressor with buna–N  
diaphragm  
Ref Part  
No. No.  
Description  
Qty  
Ref Part  
No. No.  
Description  
Qty  
1
2
100307  
NUT, hex; 3/8–16 unc–2b  
BOLT, cap, hex hd;  
4
100003  
1
2
100307  
100003  
NUT, hex; 3/8–16 unc–2b  
BOLT, cap, hex hd;  
4
3/8–16 unc–2a x 1.5” long  
LOCKWASHER; 3/8” size  
NUT, hex; 5/16 18–8;  
silver-plate sst  
4
4
3
4
111203  
112499  
3/8–16 unc–2a x 1.5” long  
LOCKWASHER; 3/8” size  
NUT, hex; 5/16 18–8;  
4
4
3
4
111203  
112499  
1
1
1
1
2
1
1
1
6
189540  
185622  
187476  
187477  
111530  
187475  
191837*  
183542**  
V-CLAMP; sst  
COVER; aluminum  
silver-plate sst  
V-CLAMP; sst  
1
1
1
1
2
1
1
1
7
6
189540  
187241  
187476  
187564  
111530  
187475  
191837*  
183542**  
8
HOUSING; aluminum  
MANIFOLD; aluminum  
MUFFLER  
7
COVER; stainless steel  
HOUSING; aluminum  
MANIFOLD; stainless steel  
MUFFLER  
9
8
10  
11  
12  
13  
9
SHAFT; acetal  
10  
11  
12  
13  
PLATE, diaphragm, fluid side; sst  
DIAPHRAGM, backup;  
polyurethane;  
used on Model 224892 only  
DIAPHRAGM; buna–N;  
used on Model 224893 only  
SCREW, cap, hex hd;  
1/4–20 unc–2a x 1.25” long; sst  
O-RING; PTFE  
SHAFT; acetal  
PLATE, diaphragm, fluid side; sst  
DIAPHRAGM, backup;  
polyurethane;  
1
1
190148**  
113901*  
used on Model 224894 only  
DIAPHRAGM; buna–N;  
used on Model 224895 only  
SCREW, cap, hex hd;  
1/4–20 unc–2a x 1.25” long; sst  
O-RING; PTFE  
1
1
190148**  
113901*  
14  
1
1
14  
15  
16  
*110004**  
110636***  
1
1
O-RING; PTFE;  
15  
16  
*110004**  
110636***  
used on Model 224892 only  
4
O-RING; PTFE;  
110636***  
O-RING; buna–N;  
used on Model 224894 only  
4
used on Model 224893 only  
STOP, ball; acetal  
4
2
2
3
110636***  
O-RING; buna–N;  
17  
18  
19  
21  
186692***  
186691***  
111532  
used on Model 224895 only  
STOP, ball; stainless steel  
GUIDE, ball; stainless steel  
O-RING; buna–N  
4
2
2
3
GUIDE, ball; acetal  
17  
18  
19  
21  
15V282***  
15V281***  
111532  
O-RING; buna–N  
108839**  
DIAPHRAGM; PTFE;  
used on Model 224892 only  
SCREW, machine, pan hd;  
10–24 unc–2a x 5/16” long  
LOCKWASHER, int tooth; no. 10  
NUT, hex; 1/4–20; sst  
PLATE, diaphragm, air side; SST  
PLUG, pipe, headless; 1/4 npt  
1
108839**  
DIAPHRAGM; PTFE;  
used on Model 224894 only  
SCREW, machine, pan hd;  
10–24 unc–2a x 5/16” long  
LOCKWASHER, int tooth; no. 10  
NUT, hex; 1/4–20; sst  
PLATE, diaphragm, air side; SST  
PLUG, pipe, headless; 1/4 npt  
29  
100264  
1
1
1
1
1
1
29  
100264  
30  
31  
32  
33  
100718  
102025  
191741*  
100721  
1
1
1
1
1
30  
31  
32  
33  
100718  
102025  
191741*  
100721  
*
The replacements for these parts are available in  
Diaphragm Plate Kit 239158. See page 14. Purchase the  
kit separately.  
*
The replacements for these parts are available in  
Diaphragm Plate Kit 239158. See page 14. Purchase the  
kit separately.  
** The replacements for these parts are available in  
Diaphragm Repair Kits D05001 and D05007. See page 14.  
Purchase the applicable kit separately.  
** The replacements for these parts are available in  
Diaphragm Repair Kits D05001 and D05007. See page 14.  
Purchase the applicable kit separately.  
*** The replacements for these parts are available in Repair  
Kits D05210 and D05270. See page 14. Purchase the  
applicable kit separately.  
*** The replacements for these parts are available in Repair  
Kits D05210 and D05270. See page 14. Purchase the  
applicable kit separately.  
13  
308178  
 
Repair Kits  
Repair Kits must be purchased separately.  
Use only genuine Graco parts and accessories.  
The Ref. No. shown in the kits below correspond to the reference numbers used in the Parts List on page 13. For the  
best results, use all the parts in the kit, even if the old parts still look good.  
PTFE Diaphragm Kit D05001  
Buna-N Ball Repair Kit D05270  
For Models 224892 and 224894. Includes enough parts  
For Model 224893 only. Includes enough parts to service  
to service the surge suppressor twice.  
the surge suppressor twice.  
Ref  
Ref  
No.  
Part No.  
Description  
Qty.  
No.  
Part No.  
Description  
Qty.  
13  
183542  
DIAPHRAGM, backup;  
polyurethane  
15  
16  
17  
18  
]
110004  
110636  
186691  
186692  
108944  
PACKING, o-ring  
2
8
4
4
4
2
2
8
2
2
2
PACKING, o-ring  
15  
16  
]
]
21  
110004  
110636  
191779  
113704  
108839  
PACKING, o-ring  
GUIDE, ball; black acetal  
STOP, ball; black acetal  
BALL; 0.75”; buna–N  
PACKING, o-ring  
BEARING; acetal  
PACKING, o-ring; FKM  
DIAPHRAGM; PTFE  
] These parts are not used with the surge suppressor.  
PTFE Ball Repair Kit D05310  
] These parts are not used with the surge suppressor.  
For Model 224894 only. Includes enough parts to service  
Buna-N Diaphragm Kit D05007  
the surge suppressor twice.  
For Models 224893 and 224895. Includes enough parts  
Ref  
No.  
Part No.  
Description  
Qty.  
to service the surge suppressor twice.  
Ref  
No.  
15  
16  
17  
18  
]
110004  
110636  
15V281  
15V282  
108639  
PACKING, o-ring  
2
8
4
4
4
Part No.  
Description  
Qty.  
O-RING; PTFE  
GUIDE, ball; stainless steel  
STOP, ball; stainless steel  
BALL; 0.75”; PTFE  
13  
15  
16  
]
190148  
110004  
110636  
191779  
113704  
DIAPHRAGM; buna–N  
PACKING, o-ring  
2
2
8
2
2
PACKING, o-ring  
BEARING; acetal  
PACKING, o-ring; FKM  
] These parts are not used with the surge suppressor.  
]
Buna-N Ball Repair Kit D05370  
] These parts are not used with the surge suppressor.  
For Model 224895 only. Includes enough parts to service  
PTFE Ball Repair Kit D05210  
the surge suppressor twice.  
For Model 224892 only. Includes enough parts to service  
Ref  
No.  
Part No.  
Description  
Qty.  
the surge suppressor twice.  
Ref  
No.  
15  
16  
17  
18  
]
110004  
110636  
15V281  
15V282  
108944  
PACKING, o-ring  
2
8
4
4
4
Part No.  
Description  
Qty.  
PACKING, o-ring  
GUIDE, ball; stainless steel  
STOP, ball; stainless steel  
BALL; 0.75”; buna–N  
15  
16  
17  
18  
]
110004  
110636  
186691  
186692  
108639  
PACKING, o-ring  
2
8
4
4
4
O-RING; PTFER  
GUIDE, ball; black acetal  
STOP, ball; black acetal  
BALL; 0.75”; PTFE  
] These parts are not used with the surge suppressor.  
Diaphragm Plate Kit 239158  
] These parts are not used with the surge suppressor.  
For all models.  
Ref  
No.  
Part No.  
Description  
Qty.  
12  
14  
191837  
113901  
PLATE, diaphragm, fluid side  
SCREW, flange, hex-head;  
1/4–20 x 1.25  
PACKING, o-ring; PTFE  
PLATE, diaphragm, air side  
1
1
1
1
15  
32  
110004  
191741  
14  
308178  
 
Dimensional Drawing  
air exhaust muffler: 1/2 npt  
height:  
8.78 in.  
(223 mm)  
air inlet:  
1/4 npt(f)  
fluid outlet:  
3/4 npt(f)  
width across clamp:  
7.38 in. (187.5 mm)  
inlet-to-outlet length:  
7.74 in. (196.6 mm)  
fluid inlet:  
3/4 npt(f)  
total length:  
8.40 in. (213.4 mm)  
0903  
15  
308178  
 
Technical Data  
Maximum fluid working pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 psi (0.7 MPa, 7 bar)  
Air pressure operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 to 100 psi (0.18 to 0.7 MPa, 1.75 to 7 bar)  
Maximum free flow delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 gpm (60 l/min)  
Air inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/4 npt(f)  
Air exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/2 npt(f)  
Fluid inlet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 npt(f)  
Fluid outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 npt(f)  
Wetted parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Model 224892: acetal, aluminum, PTFE,  
316 stainless steel  
Model 224893: acetal, aluminum, PTFE,  
buna–N, 316 stainless steel  
Model 224894: 316 stainless steel, PTFE  
Model 224895: 316 stainless steel, buna–N, PTFE  
Non-wetted Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Models 224892 and 224894:  
acetal, aluminum, buna–N,  
polyurethane, bronze, plated steel,  
polyester (labels)  
Models 224893 and 224895:  
acetal, aluminum, buna–N,  
bronze, plated steel, polyester (labels)  
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Models 224892 and 224893: 10 lb (4.6 kg)  
Models 224894 and 224895: 14 lb (6.4 kg)  
Manual Change Summary  
This manual went from Rev. A to Rev. E to make the following changes:  
D PCNs B through D are incorporated into this revision.  
D A new air-side diaphragm plate is added. See Ref. No. 32 in the Parts List.  
D The quantity of Ref. No. 12, diaphragm plate, is changed from 2 to 1, and the Part No. is changed from 186265  
to Part No. 191837.  
D Newly configured kits are explained and listed on pages 12 through 14.  
D Diaphragm Plate Kit 239158 is added on page 14.  
16  
308178  
 
Notes  
17  
308178  
 
Notes  
18  
308178  
 
Notes  
19  
308178  
 
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 by an authorized Graco distributor 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 to identify the distributor closest to you:  
Phone: 612–623–6921 or Toll Free: 1–800–328–0211 Fax: 612–378–3505  
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.  
Original Instructions. This manual contains English. MM 308178  
Graco Headquarters: Minneapolis  
International Offices: Belgium, China, Japan, Korea  
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441  
Copyright 1991, Graco Inc. is registered to ISO 9001  
Revised 01/2010  
20  
308178  
 

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