Instructions
PLURAL COMPONENT
Mixer Manifold
307400P
3000 psi (21.0 MPa, 210 bar) Maximum Working Pressure
Model 215625 Series C
Low Volume Mixer: 1/4 npt fluid outlet; for use in low
volume applications, such as air spray urethanes.
Model 215626 Series C
High Volume Mixer: 1/2 npt fluid outlet; for use in high
volume applications, such as airless spray or high solids
epoxy.
Model 241692 Series A
Includes Model 215626 and a static pipe mixer.
Ball Valve Kit 218413
Updates the handle and ball valve of Series A,
Model 215625, Low Volume Mixer. See page 10.
Ball Valve Kit 218414
Updates the handle and ball valve of Series A,
Model 215626, High Volume Mixer. See page 10.
06305
Read warnings and instructions.
See page 2 for Table of Contents.
GRACO INC.ąP.O. BOX 1441ąMINNEAPOLIS, MNą55440-1441
Copyright 1980, 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 is a serious injury. The injury may look like just a cut, but it is a serious
injury. Get immediate medical attention.
D Do not stop or deflect leaks with your hand, body, glove or rag.
D Always have the tip guard and the trigger guard on the gun when spraying.
D Do not “blow back” fluid; this is not an air spray system.
D Check the gun diffuser operation weekly. Refer to the gun manual.
D Be sure the gun trigger safety operates before spraying.
D Lock the gun trigger safety when you stop spraying.
D Follow the Pressure Relief Procedure on page 8 if the spray tip clogs and before cleaning,
checking or servicing the equipment.
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.
MOVING PARTS HAZARD
Moving parts can pinch or amputate your fingers.
D Keep clear of all moving parts when starting or operating the pump.
D Before checking or servicing the equipment, follow the Pressure Relief Procedure on page 8 to
prevent the equipment from starting unexpectedly.
307400
3
WARNING
FIRE AND EXPLOSION HAZARD
Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and re-
sult in a fire or explosion and serious injury.
D Ground the equipment and the object being sprayed. Follow the grounding instructions on
page 5.
D If there is any static sparking or you feel an electric shock while using this equipment, stop spray-
ing 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 sprayed.
D Keep the spray area free of debris, including solvent, rags, and gasoline.
D Before operating this equipment, electrically disconnect all equipment in the spray area.
D Before operating this equipment, extinguish all open flames or pilot lights in the spray area.
D Do not smoke in the spray area.
D Do not turn on or off any light switch in the spray area while spraying or while operating if fumes
are present.
D Do not operate a gasoline engine in the spray area.
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.
REACTIVE CHEMICALS HAZARD
Graco Inc. does not manufacture or supply any of the reactive chemical components that are used in
this equipment, and is not responsible for their effects. Because of the vast number of chemicals that
could be used, and their varying chemical reactions, the buyer and user of this equipment should de-
termine all facts relating to the materials used, including any of the potential hazards involved. Particu-
lar inquiry and investigation should be made into potential dangers relating to toxic fumes, fires, explo-
sions, reaction times, and exposure of human beings to the individual components or their resultant
mixtures. Graco assumes no responsibility for loss, damage, expense, or claims for bodily injury or
property damage, direct or consequential, arising from use of such chemical components.
4
307400
Installation
6. All solvent pails used when flushing, according to
Grounding
local code. Use only metal pails, which are con-
ductive. Do not place the pail on a nonconductive
surface, such as paper or cardboard, which
interrupts the grounding continuity.
Proper grounding is an essential part of maintaining a
safe system.
7. To maintain grounding continuity when flushing or
relieving pressure, always hold a metal part of the
gun firmly to the side of a grounded metal pail,
then trigger the gun.
To reduce the risk of static sparking, ground the pump.
Check your local electrical code for detailed grounding
instructions for your area and type of equipment. Be
sure to ground all of this equipment:
Installation (See Fig. 1)
1. Pump: use a ground wire and clamp as instructed
For assistance in setting up a plural component sys-
tem, contact your Graco distributor. This will help as-
sure that you select the proper type and size equip-
ment for your job.
in your pump instruction manual.
2. Fluid hoses: Use only grounded hoses with a max-
imum of 500 feet (150 m) combined hose length to
ensure grounding continuity.
Use the spacer (40), screws (37), nuts (38) and lock-
washers (39) provided to mount the manifold.
3. Spray gun, manifold, or dispensing valve: obtain
grounding through connection to a properly
grounded connection to a properly grounded fluid
hose and sprayer.
Connect the supply lines from your pump to the man-
ifold inlets (R & Q).
Connect your static mixer or hose to the material outlet
(S). Model 215626 has a 1/2 npt(m) outlet, and model
215625 has a 1/4 npt(m) outlet. Model 241692
includes a static mixer with a 3/8 npt(m) outlet.
4. Object being sprayed: according to local code.
5. Supply Containers: according to local code.
Q
R
S
Model 215626 Shown
05764
Fig. 1
307400
5
Operation
Solvent may channel through viscous fluids and leave
Start-up
a coating of mixed fluid on the inner tube of your hose.
The mixer manifold was tested in oil, which was left in
to protect the manifold. Before operating, thoroughly
flush the manifold to prevent contamination of the
fluids.
Fig 2 shows the handle in the UP, or closed, position and the
right solvent valve open with solvent flowing through the
right fluid chamber and out through the mixing chamber.
Flushing Procedure
Solvent
CAUTION
Handle
up
Be sure to label all fluid path parts “component A” or
“component B” when disassembling them. Doing so
prevents interchanging A and B parts during reas-
sembly, which will contaminate the materials and the
fluid path through the equipment.
Resin
(A)
Hardener
(B)
Color-coded chemically resistant tape may be used
to label the parts. Use blue for component A, green
for component B, white for solvent, and red for mixed
material.
Place the handle in the UP, or closed, position. Turn on
the solvent supply pump. Open one of the solvent
valves. Release the spray gun safety latch. Hold the
gun firmly to the side of a grounded metal pail, then
trigger the gun to flush. Flush until all contaminants
and oil are removed. Release the trigger, engage the
safety latch, and close the solvent valve. Repeat for
the other solvent valve.
Solvent
valve
shown
open
Solvent out
Any ratio check valves on the manifold output side
must be flushed. Place a container under both valves
to catch the waste solvent. Flush the valves after trig-
gering the gun, one side at a time.
05767
Fig. 2
6
307400
Operation
Be sure all fluid is thoroughly flushed from the hose
Solvent
after each use.
Resin
(A)
Hardener
(B)
Disassemble all other dispensing equipment, as nec-
essary, and clean thoroughly.
CAUTION
To prevent fluid from setting up in the dispensing
equipment, flush the system frequently. Be sure
there is adequate solvent in the solvent supply
before starting to spray.
Dispensing
Handle
down
To dispense the resin and hardener, turn on the supply
pumps. Then push the handle forward (DOWN) to the
open position. To stop the flow, move the handle to the
UP or closed position.
Solvent
valve
shown
closed
Fig 3 shows the handle in the DOWN, or open, position, sol-
vent valve closed, and resin and hardener flowing through
the manifold.
05766
Fig. 3
307400
7
Operation
1. Close the mixer fluid valves.
Pressure Relief Procedure
2. Flush the dispensing equipment as described in
the Flushing Procedure on page 6.
WARNING
3. Shut off the fluid and solvent pumps.
INJECTION HAZARD
4. Hold a metal part of the spray gun firmly to a
grounded metal pail, and trigger the gun to relieve
pressure.
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:
5. Engage the gun safety latch
6. Open any drain valves, and leave them open until
you are ready to spray again.
7. If fluid has hardened in the hose or mixer, close
the fluid valve, shut off the fluid and solvent
pumps, and slowly loosen the fluid inlet hose(s) to
relieve pressure, then remove the dispensing
hose.
D are instructed to relieve the pressure,
D stop spraying,
D check or service any of the system equipment,
D or install or clean the spray tip.
Troubleshooting
1. Relieve the pressure before you check or service
WARNING
any system equipment.
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure above.
2. Check all possible causes and solutions in the
Troubleshooting Chart before disassembling the
manifold.
Problem
Cause
Solution
The fluid inlet is plugged.
Clean the inlet, remove the
obstruction.
Little or no resin (A) output
The fluid supply container is empty.
The fluid inlet is plugged.
Refill the fluid supply.
Little or no hardener (B) output
The mixed fluid will not flush out
Clean the inlet, remove the
obstruction.
The fluid supply container is empty.
Refill the fluid supply.
There is hardened fluid in the mixing
chamber.
Clean the chamber with a compatible
solvent; service it as necessary.
The solvent supply container is
empty.
Refill the solvent supply.
The solvent is not compatible with the Change to a compatible solvent.
fluid.
8
307400
Service
7. Tighten the needle valve slightly, so that the
Manifold Repair (See Page 10. )
tapered end centers in the seat (6) and holds its
position.
WARNING
8. Turn the six socket screws (2) oppositely and
evenly to 60–70 in-lbs (6.7–7.9 NSm). Back off the
needle valve (12) slightly.
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 8.
9. Repeat step 8 as the torque will relax.
Note: Repair kits are available for the manifold. Parts
included in the kits are indicated with a †, for example
(9†) See page 11.
CAUTION
1. Relieve the Pressure.
Be sure to tighten the six socket screws (2) evenly.
The upper four screws, which surround the needle
valve assembly (12), are critical in ensuring that the
needle seats properly. If the bottom two screws are
over-tightened, they will throw off the alignment.
2. Remove the twelve socket-head screws (2) to
separate the two valve housings (8) from the
manifold housing (7). Remove all parts from the
housings.
3. Clean all parts thoroughly in a compatible solvent.
Use a soft bristle brush to clean the manifold
passageways.
10. Repeat the procedure from step 9 on the other
valve housing (8).
Ball Valve Repair (See Page 10.)
4. Install the two check valve assemblies (9†) and
valve seats (6†) in the manifold housing (7).
Note: Repair Kit 217560 is available for the ball valves.
Parts included in the kit are indicated with an asterisk,
for example (18*). See page 11.
5. Install the needle valve (12), back-up ring (4**),
and seal (3†) in each of the valve housings (8).
6. Install six socket-head screws (2) through one
valve housing (8) and into the manifold housing
(7), so the distance between the housings is
0.060 in. (1.5 mm).
When reassembling a ball valve (13 or 24), install the
ball (18* or 29*) so that the round hole aligns with the
main passageway of the valve body and the square
hole aligns with the stem (21 or 32) passageway.
307400
9
Parts
Ref No.13
Ball Valve 215622, Series B
Low Volume
Ref No.24
Ball Valve 215623, Series B
High Volume
14
20
25
31
*17
28
21
,
19*
*17
*16
32‡
15*
22
28
27
18*
30
23
26
33‡
22
29
15*
19*
34‡
33‡
05769
05768
26
30
11
13 or 24
Model 215625 Manifold, Series C
Model 215626 Manifold, Series C
Instruction label covers parts 7 and 8
when assembled.
1
5
13 or 24
8
3†
4†
41
1
9†
12
6†
7
6†
9†
8
1
Torque twice to 60–70 in-lb.
(6.7–7.9 NSm)
05765
2
10
307400
Parts
Models 215625 and 215626, Series C
Ref
No.
Ref
No.
Part No. Description
Qty.
Part No. Description
Qty.
20
165964
. NUT, packing
1
1
2
100721
104472
PLUG, internal hex; 1/4; 1/4 npt
CAPSCREW, hex hd;
2
21
22*
23
24
178745
172094
178743
215623
. STEM
. SEAT, ball; Nylatron
. HOUSING
1
2
1
R
10–32 x 1–1/2
SEAL, shaft; SST and PTFE
RING, back-up; Delrin
12
2
2
1
R
3†
4†
5
6†
7
105694
177019
177021
177022
R
VALVE, ball;
used in model 215626 Series B
includes items 25–34
. NUT
. O-RING; PTFE
. O-RING; PTFE
. WASHER, back-up; Delrin
. BALL
. STUD; 3/8 npt
. NUT, packing
. STEM
. SEAT, ball; Nylatron
. HOUSING, valve
CAPSCREW, hex hd; 1/4 x 2.25”
(not shown)
NUT, hex, mscr; 1/4 (not shown)
LOCKWASHER; 1/4” (not shown) 2
SPACER (not shown)
LABEL, instruction
NIPPLE, pipe, hex; 1/4 npt
R
2
1
2
1
2
1
2
1
1
2
1
SEAT, valve; Delrin
2
25
26*
102310
104892
104893
164900
178746
165599
165964
178745
172094
178743
104429
HOUSING, manifold;
used in model 215625
used in model 215626
HOUSING, valve;
used in model 215625
used in model 215626
CHECK VALVE Assy
used in model 215625
used in model 215626
HANDLE
R
181116
181115
1
R
27*
1
R
28*
8
29*
177029
177030
2
30
2
31
9†
32
215619
215618
217562
215621
215622
2
R
33*
2
34
2
11
12
13
37‡
2
NEEDLE VALVE Assy
VALVE, ball;
used in model 215625
2
2
38‡
39‡
100015
100016
178928
188732
Series B Includes items 14–23
. NUT
2
40‡
1
1
1
14
102310
104892
104893
164900
178746
165274
R
41
15*
16*
17*
18*
19
. O-RING; PTFE
. O-RING; PTFE
2
R
*
Supplied in Repair Kit 217560.
1
2
1
2
R
. WASHER, back-up; Delrin
. BALL
† Supplied in Repair Kit 215913 or 215914. Order Repair Kit
215913 for Model 215626, and Repair Kit 215914 for
Model 215625.
. STUD; 1/4 npt
‡
One spacer (40), two screws (37), nuts (38) and lock-
washers (39) are included for mounting the manifold.
Kits for Series A Manifolds
Ball Valve Kit 218413
Ball Valve Kit 218414
Updates the handle (11) and ball valve (13) of Series A
Updates the handle (11) and ball valve (24) of Series A
215626 High Volume Mixer. Includes:
Ref
215625 Low Volume Mixer. Includes:
Ref
No.
Part No. Description
Qty.
No.
Part No. Description
Qty.
11
13
217562
215622
HANDLE
VALVE, ball;
1
11
24
217562
215623
HANDLE
VALVE, ball;
1
used in model 215625
Series B Includes items 14–23
used in model 215626 Series B
includes items 25–34
2
2
307400
11
Parts
Model 241692 Series A
2
4
3
9
7
5
6
8
5765B
Ref
No.
Part No. Description
Qty.
Ref
No.
Part No. Description
Qty.
1
215626
MANIFOLD, mixer; see full parts
and listing on pages 10 and 11
UNION, swivel, 90_
5
6
7
8
9
156823
108233
502265
512506
158581
UNION, swivel
VALVE, needle
BUSHING, reducer, pipe
MIXER, static, pipe
COUPLING, hex
2
2
1
1
1
1
1
2
2
2
3
4
157676
155699
161037
ELBOW, street
FITTING, union, adapter
12
307400
Technical Data
Maximum working pressure . . . . . . . . . . . . . . . . . . . . . 3000 psi (21.0 MPa, 210 bar)
Fluid port size
Model 215625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/4 npt(m)
Model 241692 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/2 npt(f)
Model 215626 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/8 npt(m)
Solvent port size
Model 215625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/4 npt(m)
Model 215626 and 241692 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/4 npt(m)
Fluid outlet size
Model 215625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/4 npt(m)
Model 241692 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/8 npt(m)
Model 215626 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/2 npt(m)
Mix chamber volume
Model 215625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.10 fluid oz. (3.1 ml)
Model 215626 and 241692 . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.32 fluid oz. (10 ml)
Wetted parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chrome Alloy, High Carbon, Nickel
Plated and Zinc Plated Steels; 303,
R
316*, and 416 stainless steels; Delrin ,
R
R
Nylon, PTFE, Plastics and Nylatron
*316 Stainless Steel only used in 216626.
Delrin is a registered trademarks of the DuPont Company.
Nylatron is a registered trademark of the Polymer Corporation.
RR
R
307400
13
Dimensions
Model
215625
Model
215626
Model
241692
A
5.0 in
(127 mm)
5.5 in
(140 mm)
5.5 in
(140 mm)
Overall Length
B
5.375 in.
(136 mm)
6.25 in
(159 mm)
19.85 in
(504 mm)
Overall Height
C
1.375 in
(35 mm)
1.25 in
(32 mm)
1.25 in
(32 mm)
Overall Width
D
1/4 npt(m)
1/4 npt(m)
1/4 npt(m)
3/8 npt(m)
1/4 npt(m)
1/2 npt(m)
3/8 npt(m)
1/4 npt(m)
3/8 npt(m)
Fluid Inlets
E
Solvent Inlet
F
Material Outlet
1/4 npt plugged ports
in two end sections of
manifold
1
2
E
Two 0.26” (6.6 mm)
diameter mounting
holes 1.10” (27.9 mm)
apart center to center.
D
E
D
2
B
2
1
B
C
C
1
A
F
05764
F
05764B
A
14
307400
Notes
head.notes
307400
15
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 accor-
dance 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 sub-
stitution 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 reconnais-
sent 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:
1–800–367–4023 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.
Sales Offices: Minneapolis, Detroit
International Offices: Belgium, Korea, Hong Kong, Japan
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
PRINTED IN U.S.A. 307400 09/1980, Revised 10/2002
16
307400
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