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4

308178

Installation

System Pressure

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.

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.

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.

4.

Open the fluid drain valve to relieve all fluid
pressure; have a container ready to catch the
drainage.

Fluid Compatibility

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.

Grounding

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, 

and other flammable substances, whether you are
pumping indoors or outdoors, and can cause a fire or
explosion and serious bodily injury and property
damage.

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:

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.

D

Air and fluid hoses:  Use only grounded hoses with
a maximum of 500 ft (150 m) combined hose length
to ensure grounding continuity.

D

Air compressor:   Follow the manufacturer’s
recommendations.

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.

D

Fluid supply container:   Follow the local code.

0942

Fig. 1

Y

Z

Summary of Contents for 224892

Page 1: ...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 haloge...

Page 2: ... not alter or modify this equipment Use only genuine Graco parts and accessories D Check equipment daily Repair or replace worn or damaged parts immediately D Do not exceed the maximum working pressure of the lowest rated component in your system See Technical Data on page 16 D Use fluids and solvents that are compatible with the equipment wetted parts Refer to the Technical Data section of all eq...

Page 3: ...l 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 an...

Page 4: ...d 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 and other flammable substances whether you are pumping indoors or outdoors and can cause a fire or explosion and serious bodily injury and property damage If you experience a...

Page 5: ...r pressure gauge C Fluid supply line D Fluid outlet line E Air supply line F Husky 715 pump G Fluid drain valve H Bleed type master air valve required for pump and surge suppressor J Air regulator K Air Filter L Bleed type master air valve for accessories M Surge suppressor ground wire required N Pump ground wire required A B C D E F G H J K L M N DETAIL A Venting Exhaust Air to a Remote Container...

Page 6: ...pressor 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 Air Exhaust Ventilation WARNING Be sure to read TOXIC FLUID HAZARD and FIRE...

Page 7: ... 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 press...

Page 8: ...page 9 Unbalanced air pressures between pump and surge suppressor Ratio of air inlet pressure to surge 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 supply line loose Tighten Diaphragm 13 or 21 ruptured Replace See page 9 Manifold o rings 16 leaking Replac...

Page 9: ...uts and torque to 6 to 10 ft lb 1 4 to 13 6 N m See the Parts Drawing on page 12 Servicing the Diaphragm and Shaft 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 1 Relieve the pressure WARNING To reduce the ri...

Page 10: ...lable 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 1 Relieve the pressure WARNING To reduce the risk of serious injury whenever you are instru...

Page 11: ... 1 1 to 1 7 N m 2 Torque to 3 to 6 ft lb 4 to 8 N m 31 Torque to 5 to 7 ft lb 7 to 10 N m 14 Apply sealant to threads 17 Beveled side faces inward 18 Flat end faces inward 12 Flat side faces down 32 Flat side faces up 21 models 224892 and 224894 only Fig 2 Lubricate inner diameter of housing 8 with lithium based grease Air inlet 1 4 npt f ...

Page 12: ... buna N 190148 108839 21 Used on Models 224892 and 224894 only 12 Flat side faces down 110004 15 7 17 acetal 186691 sst 15V281 18 acetal 186692 sst 15V282 1 3 9 Chamfer faces out 19 Lubricate with lithium base grease 33 Apply sealant tape to threads 30 29 4 Torque to 6 to 10 ft lb 8 to 14 N m 14 Apply sealant to threads The replacements for these parts are available in Diaphragm Plate Kit 239158 S...

Page 13: ...able in Repair Kits D05210 and D05270 See page 14 Purchase the applicable kit separately Model 224894 Series A stainless steel surge suppressor with PTFE diaphragm Model 224895 Series A stainless steel surge suppressor with buna N diaphragm Ref Part No No Description Qty 1 100307 NUT hex 3 8 16 unc 2b 4 2 100003 BOLT cap hex hd 3 8 16 unc 2a x 1 5 long 4 3 111203 LOCKWASHER 3 8 size 4 4 112499 NUT...

Page 14: ...691 GUIDE ball black acetal 4 18 186692 STOP ball black acetal 4 108639 BALL 0 75 PTFE 4 These parts are not used with the surge suppressor Buna N Ball Repair Kit D05270 For Model 224893 only Includes enough parts to service the surge suppressor twice Ref No Part No Description Qty 15 110004 PACKING o ring 2 16 110636 PACKING o ring 8 17 186691 GUIDE ball black acetal 4 18 186692 STOP ball black a...

Page 15: ...ÄÄ ÄÄÄ 0903 height 8 78 in 223 mm width across clamp 7 38 in 187 5 mm inlet to outlet length 7 74 in 196 6 mm total length 8 40 in 213 4 mm fluid inlet 3 4 npt f air inlet 1 4 npt f air exhaust muffler 1 2 npt fluid outlet 3 4 npt f ...

Page 16: ...4892 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...

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Page 20: ...ing 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...

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