Service Bulletin

SB-6-403-K
Replaces SB-6-403-J

HGS STAINLESS STEEL FLUID REGULATORSIMPORTANT: Read and fol­low all
instructions and safety precautions before using this equipment. Retain for future reference.

Air Pilot
Regulator

GENERALDESCRIPTIONThis service bulletin covers installation,
operation, preventive maintenance, parts
replacement, and accessory items for HGS
Fluid Regulators.

HGS Fluid Regulators provide regulationof fluid to the spray gun without stopping
the flow of material which can cause settling of pigmented materials.

MODEL IDENTIFICATION
HGS-5 X X X
Product
Identification
Control Type
1)Air Pilot
2) Manual Adjustment
3)Tamper Resistant		 Adjustment

Tamper Resistant
Regulator

NOTE

Fluid Outlet
Configuration
1) Bayonet Lock2) 3/8" NPSM(F)		 Swivel3) 1/4" NPSM(M)		 Standpipe9) 3/8" NPSM(M)

Fluid Inlet
Configuration
1) 1/4" NPSM(M) Fitting2) 3/8" NPSM(M) Fitting3) Non-Circulating 1/8" NPT(F)

These regulators may be usedwith materials containing chlorinated solvents.

CA PROP

65

PROP 65 WARNINGWARNING: This product contains chemicals
known to the State of California to cause
cancer and birth defects or otherreproductive harm.

MODEL CHART

ManualRegulator* Manual, non-circulating, single gun fluid regulator, primarily used in conjunction
with fluid pumps or dead end systems.
** Manual, non-circulating, can be attached to gun inlet or in line. Note: If used incolor change applications or with catalyzed materials, plug (24) must be removed
and the threads cleaned periodically.

Page 2SB-6-403-K
SAFETY PRECAUTIONSThis manual contains information that is important for you to know and understand. This information relates to
USER SAFETY and PREVENTING EQUIPMENT PROBLEMS. To help you recognize this information, we use the following symbols. Please pay particular attention to these sections.

NOTE
Important safety information -a hazard that may cause serious
injury or loss of life.

Important information that tells
how to prevent damage toequipment, or how to avoid asituation that may cause minor
injury.

Information that you should pay
special attention to.

MODEL NUMBER TO REGULATOR BODY CROSS REFERENCE CHART		
Model Number

Body Number(Less Fittings)

HGS-5112, HGS-5113, HGS-5122
HGS-5132, HGS-5133
HGS-5211, HGS-5212, HGS-5221, HGS-5222
HGS-5231, HGS-5232, HGS-5233, HGS-5239
HGS-5312, HGS-5313, HGS-5321
HGS-5242

HGS-452
HGS-453
HGS-451
HGS-455
HGS-450
HGS-461

3/8" npsm(f)NONRESTRICTED
FLOW(HC-4691)
1/4" npsm(M)STANDPIPEASSEMBLY(HGS-400)

ACCESSORYITEMS(STAINLESS STEEL)

3/8"
SWIVEL(HC-1000, HGS-1)

BAYONETASSEMBLY(HGS-401-1)

OUTLET
CONNECTORS(STAINLESS STEEL)

1/8" NPT(F)INLET

15° ANGLE(ALL MODELS)

TAMPERRESISTANTADJUSTMENTMANUALADJUSTMENT

1/4"
NPSM(M)
INLET(HGS-22)

AIR PILOTCIRCULATING

AIR PILOT
NON-CIRCULATING

3/8"
NPSM(M)
INLET(HGS-21)FLUID
REGULATORBASIC
ASSEMBLY(WETTED PARTS--STAINLESS STEELAND PTFE)
TEFLON)DUAL INLET ADAPTERSCIRCULATING MODELSONLY(STAINLESS STEEL)SB-6-403-K
TECHNICAL DATA

2.
PSI

(bar)

Fluid Inlet Pressure Min.
		
Max.

50
300

(3.5)
(20.7)

Regulated Fluid
Pressure Range

2100(0.14)
(6.9)

Min.
Max.

*Typical Flow Rates 150 to 2500 cc's/minuteoz's(grams)Average Unit Weight
Models - Swivel		- Tamper Resist		- Standpipe		- Bayonet

7.3
7.9
9.3
9.7

(210)
(225)
(265)
(275)

Fluid

oz's

(ml)

Static Content
Models - Circulating		- Non-circulating

0.25
0.20

(7)
(5)

303 and 416 Stainless Steel,
PTFE
Teflon ®

Models17 models offered as standard*Dependent upon viscocity and specificgravity of material. Above information
based upon testing with mineral oil withviscosity of 24 seconds #4 Ford, andspecific gravity of 0.84.
® Registered trademark of Dupont.
INSTALLATION

Risk of hazardous bursting or
equipment damage. Do not exceed 300 PSI (21 bar) maximum
fluid inlet pressure to regulator.

These regulators may be usedwith most common coating andfinishing materials. However,they are not designed for use
with highly abrasive materials.
If used with abrasive materials,
frequent and thorough cleaning
will be required, and replacement of parts will be increased.
1.

Circulating Models
Connect the fluid supply hose toeither fluid inlet adapter (53 or 54).
Connect the return line to the otheradapter (53 or 54).
Non-Circulating Models
Connect the fluid supply hose to
inlet of plug (23 or 40).
3.

Where possible, mount the HGS
regulator as shown below with thefluid outlet facing up. This will prevent trapped air from causing erratic
operation. Trapped air can result
from an "air push" during a color
change cycle, or entrapped air in thepaint.

Connect fluid outlet.

To Regulate Fluid Pressure on Air Pilot
ModelsFluid pressure is controlled by meansof air pressure. To actuate fluid flow, aminimum of 12-14 psi air pressure must
be applied to the bonnet. Attach one endof regulated air line to connector (25)and the other end of the air line to aremote regulator. Increase air pressure
to increase fluid pressure, and decrease
air pressure to decrease fluid pressure.

Bayonet Regulators
Attach the bayonet lock body (41) tothe bayonet quick disconnect stemat the spray gun fluid inlet.

Fluid pressure remains constant unless
air pilot regulator setting is altered.

3/8" Swivel Regulators
Thread swivel nut (49) onto fluid inletof spray gun body.

Cleaning

Standpipe Regulators
Attach fluid supply hose from spraygun to bulkhead fitting (52).
4.

Wetted Parts
		

Connect fluid inlet supply hose.

Page 3Connect air inlet.
Air Pilot Regulators
Attach regulated air supply to connector (25).

OPERATIONPREVENTIVE MAINTENANCE

Total submersion of the fluid
regulator in solvent for cleaning
purposes will shorten the life
expectancy of the diaphragm.
The frequency with which the fluid
regulator should be cleaned will be thesame as the rest of the system in which
it is being used.
Bayonet Models

Risk of hazardous bursting or
equipment damage. Do not exceed 300 PSI (21 bar) maximum
fluid inlet pressure to regulator.
Fluid pressure adjustment range is from
2 psi to 100 psi (0.1 bar to 6.9 bar).
Fluid pressure to regulator inlet is
300 psi (20.7 bar) maximum and 50 psi(3.5 bar) minimum.
To Regulate Fluid Pressure on Manual
Adjust Models
1.

Remove cap nut (1) and loosen locknut (2).

2.

With a 3/32 inch hex key allen
wrench, adjust hex key allen set
screw (3) for desired pressure setting. Turn set screw (3) clockwise toincrease and counterclockwise to
decrease pressure.

3.

Retighten lock nut (2) after desiredpressure setting has been established. Replace and tighten cap nut(1).

To Regulate Fluid Pressure on Tamper
Resistant Models
1.

Using T-handle (4B), loosen lock (6).

2.

Engage adjusting screw (5) with torx
key (4A) and turn adjusting screw until
desired pressure setting is reached.
Turn torx key clockwise to increasepressure and counterclockwise to
decrease pressure.

3.

Using the torx key, hold adjustingscrew (5) from turning and tighten
lock (6) with the T-handle (4B).

Fluid outlet should
face upward.

When spray gun is removed from service
and fluid regulator is not going to be used
for a period of time, the bayonet end
should immediately be soaked in solvent.
Do not submerge the entire regulator.
This will avoid hardening of material
around the ball and seat which may cause
leakage when regulator is put back inservice. The soaking container should be
an approved closed container if hazardous
solvents are used.

Page 4SB-6-403-K

MANUAL FLUID REGULATOR BODY ASSEMBLIES HGS-450,
HGS-451, HGS-455, HGS-461
				
Ref.
Replacement		
No.
Part No.
Description
1
--2
--3
--			
#4
KK-5047
			
4A
--4B
--5
--6
HGS-36
7
HGS-34
8
SSF-3169-K6
			
9
HGS-5
10
HGS-2811
HGS-30
*12
--*13
--*14
HGS-12-K5*15
HGS-20-1*16
SSN-5717
SSN-54
18
HGS-8
			
		
HGS-59
			
			
19
HGS-7
*20
HGS-43-K5
			
21
HGS-44*22
SSG-8144
23
HGS-27+24
HGS-26*
QH-130TAMPER RESISTANT

Ind.
Parts
Req.

Cap Nut #10-32
1
Nut #10-32
1
Hex Key Allen Set
1Screw, #10-32 x 3/4"
T-Handle Kit(Order Separately)		
Torx Key1
T-Handle
1
Torx Screw 10-32 Thd.
1
Lock
1
Guard
1
Socket Head Cap Screw, S.S.
6
#8-32 x 3/8" (Kit of 6)		Bonnet1
Adjustment Seat
1
Regulator Spring
1
Hex Nut #6-32
1
Upper Plate
1
Gasket (Kit of 5)
1
Diaphragm, PTFE
Teflon1
Washer, PTFE
Teflon1
Flat Washer
1
Regulator Body,
1
Non-Circulating
Regulator Body,
1
Non-circulating,1for Model HGS-5242
Regulator Body, Circulating
1
PTFE
Valve Seat, Teflon,
1
Std. Flow (Kit of 5)
Valve Stem, Std Flow1
O-ring, PTFE
Teflon1
Plug, Non-Circulating
1
Plug, Circulating
1
Loctite1

Dual Inlet Fittings supplied with regulator (see page 8).
Manual Adjustment Fluid Regulator includes items 1 through3 and 8 through 24.
Tamper Resistant Fluid Regulator includes items 5 through 24.

4A
#4
4B

5

MANUALADJUSTMENT

6

1
2

7

3

8
TORQUE TO
15 LB.-IN.
(1.6 N•m)

9

10
11

12
TORQUE TO
6 LB.-IN.
(0.7 N•m)

13
14

15
PTFE (SMOOTH
TEFLONGRAY SURFACE)
MUST FACE WETTEDSECTION

16# To maintain the “tamper-proof" security feature, theKK-5047 T-Handle is not included with each regulator, as
one T-Handle will service multiple regulators.

17

NOTE: KK-5047 T-Handle must be purchased separately.
Suffix -K5 designates kits of multiple parts.
* Parts included in Regulator Repair Kit KK-4456 (Std Flow).
+ HGS-5242 Model uses the circulating plug.
			

19

21
APPLY QH-130
THREADSEALANTTO THREADS24
TORQUETO 120 LB.-IN.
(13.5 N•m)

CIRCULATING
PLUG

18

20

22

23
TORQUE TO
120 LB.-IN.
(13.5 N•m)
1/8"-27
NPT(F) Inlet

NON-CIRCULATING
PLUG

SB-6-403-K

Page 5

AIR PILOT FLUID REGULATOR BODY ASSEMLBLIES HGS-452
AND HGS-453
				Ref. Replacement		
No. Part No.
Description
25
H-1766
			
26
SSF-3169-K6
			
27
HGS-4
*28
HGS-12-K5
*29		
*30		
*31
HGS-20-1*32
SSN-5733
SSN-54
34
HGS-7
			
35
HGS-8
			
*36
HGS-43-K5
			
37
HGS-44*38
SSG-8144
39
HGS-2640
HGS-27*
QH-130Connector 1/8" NPT(M)x 1/4" NPSM(M)
Socket Head Cap Screw,
S.S. #8-32 x 3/8" (Kit of 6)
BonnetGasket (Kit of 5)
Hex Nut #6-32
Upper Plate
Diaphragm, PTFE
TeflonPTFE
Washer, Teflon
Flat Washer
Regulator Body,
Circulating
Regulator Body,
Non-Circulating
Valve Seat, PTFE
Teflon(Kit of 5)
Valve Stem
O-ring, PTFE
TeflonPlug, Circulating
Plug, Non-Circulating
Loctite

Ind.
Parts
Req.
1
6
1
1
1
1
1
1
1
1
1
1

25
26
TORQUE TO
15 LB.-IN.
(1.6 N•m)

1/8"-27 NPT(F)27
29
TORQUE TO
6 LB.-IN.
(0.7 N•m)

30

28
31
PTFE (SMOOTH
TEFLONGRAY SURFACE)
MUST FACE WETTED SECTION

32
33

1
1
1
1
1

34

Dual Inlet Fittings supplied with regulator (see page 8).
Air Pilot Fluid Regulator, Circulating, includes items 25 through34 and 36 through 39.
Air Pilot Fluid Regulator, Non-Circulating, includes items 25
through 33, 35 through 38 and 40.

36

Suffix -K5 designates kits of multiple parts.
*Parts included in Regulator Repair Kit KK-4456.

38

35

37
APPLY QH-130
THREAD SEALANT
TO THREADS39TORQUE TO
120 LB.-IN.
(13.5 N•m)
40
CIRCULATINGTORQUE TO
PLUG
120 LB.-IN.
(13.5 N•m)

1/8" - 27
NPT(F)INLET
NON-CIRCULATINGPLUGPage 6SB-6-403-K

FLUID OUTLET CONNECTORS
Ref.
No.

Replacement		
Part No.
Description

41
HC-370-1
42
--*43
--*44
--*45
--			
*46
--47
HGS-25Bayonet Lock Body
Not Used
Stem Seal
Ball Seat
Stainless Steel Ball
7/16" Diameter
SpringBayonet Body

Ind.
Parts Req.

41

1
1		
1		
1
1
1

43

HGS-401-1
BayonetAssembly

44
45
46*KK-5061 Repair Kit		

47
1/8-27 NPT(M)
			
Ref.
No.

Replacement		
Part No.
Description

48
HGS-1
49
HC-1000-K5
			

Ref.
No.

Tail Piece
Swivel Nut 3/8" NPS(F)(Kit of 5)

Replacement		
Part No.
Description50
MBD-11-K5
51
--			
52
---

Lock Nut (Kit of 5)
Lock Washer, ShakeProof, 9/16)
Bulkhead Fitting

Ind.
Parts Req.
1
1

48

Swivel Adapter

1/8-27 NPT(M)

49

50

Ind.
Parts Req.

51

1
1
1

HGS-400
Stand Pipe

1/4-18 NPSM(M)52

1/8-27 NPT(M)		FLUID INLET ADAPTERS

				
Ref.
Replacement		
Ind.
No.
Part No.
Description
Parts Req.

53
HGS-22
			
54
HGS-21			

1/4" Stainless Steel
Inlet Adapter
3/8" Stainless Steel
Inlet Adapter

1/8-27 NPT(M)53

1/4-18 NPSM(M)

2		
2		

1/8-27 NPT(M)54
3/8-18 NPSM(M)NOTEPTFE based thread sealant on the
Use a Teflon
threads of inlet adapters (53 and 54), andthreads of fittings on outlet connectors (47,
48 and 52).

SB-6-403-K

Page 7SERVICEPressurized parts cause a risk of injury if disassembled. Shut off andrelieve pressure before disconnecting hoses from the fluid regulator.
Cleaning or servicing is required if the regulator does not: regulate fluid, maintain its pressure setting, or leaks fluid. To service
regulator, relieve pressures, disconnect regulator from spray gun and hoses from regulator. Disassemble regulator; refer to exploded
views. Clean and inspect parts carefully. Replace worn or damaged parts and reassemble regulator.
TROUBLESHOOTING CHART
Problem	

Cause	

RemedyNo flow or insufficient pressure
Plugged fluid pathregulation				
Defective diaphragmDisassemble and clean fluidpassages.
Replace diaphragm (Ref. 15 or 31).

Excessive fluid flow				Worn seat
Worn stem
Material viscosity low

Replace seat (Ref. 20 or 36).
Replace stem (Ref. 21 or 37).
Check material viscosity.

Material leaking under bonnet
		Bonnet screws (SSF-3169) havecome loose

Check screw torque.
specifications.

Pressure creep
		
		
		

Foreign material or dirton seat or stem
Worn seat
Worn stem

Clean seat and stem.
Replace seat (Ref. 20 or 36).
Replace stem (Ref. 21 or 37).

Erratic fluid pressure
Air trapped in regulator body						Mount regulator in a vertical 		
position; input port at bottom,
output port at top.

TYPICAL MANUAL SPRAY GUN SYSTEM
Circulating Loop With Graduated Return Lines

1

Pump Assembly/Low Ratio

7

Gun Mounted, HGS Fluid Regulator

2

Pulsation Chamber

8

Fluid Hose Assembly3

Fluid Shut-Off Valve9

Oil and Moisture Separator/Extractor Dryer

4

Filter/Fluid Outlet

10

Back Pressure Regulator/Low Pressure

5

Graduated Supply and Returns Lines

11

Pulsation Proof Gauge

6

Air Atomized Spray Gun/Manual or AutomaticPage 8SB-6-403-K

ACCESSORY ITEMS

HC-4691 — 3/8" NPSM(F) STEM, STAINLESS STEEL
Unrestricted fluid passage, for use with standard spraygun.

WARRANTY
This product is covered by DeVilbiss' 1 Year Limited Warranty.

DeVilbiss Sales and Service: www.devilbiss.com
DeVilbiss

DeVilbiss Automotive Refinishing

DeVilbiss has authorized distributors throughout the world. For technicalassistance or the distributor nearest you, see listing below.

DeVilbiss has authorized distributors throughout the world.
For equipment, parts and service, check the Yellow Pages
under “Automotive Body Shop Equipment and Supplies.”
For technical assistance, see listing below.

U.S.A./Canada Customer Service Office:
195 Internationale Blvd., Glendale Heights, IL 60139
Toll-Free Telephone: 1-800-992-4657 (U.S.A. and Canada only)
Toll-Free Fax: 1-888-246-5732

U.S.A./Canada Customer Service Office:11360 S. Airfield Road, Swanton, OH 43558
Toll-Free Telephone: 1-800-445-3988 (U.S.A. and Canada only)
Toll-Free Fax: 1-800-445-6643

9/11 © 2011 DeVilbiss All rights reserved. Printed in U.S.A.