Graco 214706 User manual

GRACO INC.ąP.O. BOX 1441ąMINNEAPOLIS, MNą55440-1441
Copyright 1978, Graco Inc. is registered to I.S. EN ISO 9001
307212AA
The fluid supply system’s main line pressures often exceed the pressure range of the gauge
supplied with regulators 214706 and 243414. Exposing this gauge to excessive pressure
can damage the gauge, causing inaccurate readings and the needle will not return to zero.
This damage is not covered by the Graco warranty.
STAINLESS STEEL, WATERBASE COMPATIBLE
Fluid Pressure Regulators
For Use In Low Pressure Systems Only
Fluid Flow up to 3 GPM (11 liters/min.)
SPRING OPERATED REGULATORS
250 psi (1.8 MPa, 18 bar) Maximum Inlet Pressure
5–100 psi (34–700 kPa, 0.3–7 bar) Regulated Pressure
Model 214895, Series G
Without Pressure Gauge and Gauge Mounting Tube
*Model 214706, Series G
With SST Gauge and Gauge Mounting Tube
0–100 psi (0–0.7 MPa, 0–7 bar) Range
Model 243414, Series A
With SST Gauge, 0–100 psi (0–0.7 MPa, 0–7 bar) Range
ISO pitch thread inlet and outlet
Not compatible with US standard pitch
Fluid housing coated with PTFE polymer
SPRING OPERATED REGULATORS
250 psi (1.8 MPa, 18 bar) Maximum Inlet Pressure
20–160 psi (0.14–1.1 kPa, 1.5–11 bar) Regulated Pressure
*Model 217314, Series E
With SST Gauge, 0–300 psi (0–2.1 MPa, 0–21 bar) Range
*Model 221118, Series D
Without Gauge
AIR OPERATED REGULATORS
30 psi (210 kPa, 2.1 bar) Maximum Regulated Air Pressure*
250 psi (1.8 MPa, 18 bar) Maximum Inlet Pressure
0–30 psi (0–210 kPa, 0–2.1 bar) Regulated Pressure
*Regulated pressures higher than 30 psi (210 kPa, 2.1 bar)
may be used if a higher rated pressure gauge is installed.
Model 214980, Series E
With Chrome Plated Gauge, 0–30 psi (0–210 kPa, 0–2.1 bar) Range
Model 244375, Series D
5–100 psi (35–700 kPa, 0.5–7 bar) Range
* These models are and certified
Instructions
Parts

2307212
Table of Contents
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Charts 17. . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Information 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
corresponding instructions.
WARNING
PRESSURIZED EQUIPMENT HAZARD
Spray from the gun, hose leaks, or ruptured components can splash fluid in the eyes or on the skin
and cause serious injury.
Do not stop or deflect fluid leaks with your hand, body, glove, or rag.
Follow the Pressure Relief Procedure on page 5 whenever you: are instructed to relieve the
pressure; stop spraying; clean, check, or service the equipment; and install or clean the fluid
nozzle.
Tighten all the fluid connections before operating the equipment.
Check the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately.
Permanently coupled hoses cannot be repaired; replace the entire hose.
INSTRUCTIONS
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture, malfunction, or start unexpectedly and result
in a serious injury.
This equipment is for professional use only.
Read all the instruction manuals, tags, and labels before operating the equipment.
Use the equipment only for its intended purpose. If you are uncertain about usage, call your Graco
distributor.
Do not alter or modify this equipment. Use only genuine Graco parts and accessories.
Check the equipment daily. Repair or replace worn or damaged parts immediately.
Do not exceed the maximum working pressure of the lowest rated system component.
Use fluids that are compatible with the equipment wetted parts. See the Technical Data section of
all the equipment manuals. Read the fluid manufacturer’s warnings.
Never use 1,1,1–trichloroethane, methylene chloride, other halogenated hydrocarbon solvents, or
fluids containing such solvents in these regulators. In the event that there is a diaphragm failure, a
serious chemical reaction could occur, with the possibility of explosion.
Route the hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not
expose Graco hoses to temperatures above 180F (82C) or below –40F (–40C).
307212 complies with all applicable local, state, and national fire, electrical, and other safety
regulations.

3307212
Installation
FLUID SUPPLY
INLET BALL VALVE
OUTLET BALL VALVE
PIPE NIPPLES
BACK
PRESSURE
VALVE
FLUID RETURN
AIR FILTER
& REGULATOR
Spring Operated Installation
Models 214895, 214706, 243414,
217314, and 221118
Pilot Regulator Air Supply Line
Air Operated Installation
Model 214980 only
OUTLET BALL VALVE
AIR SUPPLY
AIR FILTER
MOISTURE SEPARATOR
& REGULATORS
INLET BALL VALVE
Fig. 1
Fig. 2

4307212
Installation
Fluid pressure regulators are used for accurate, posi-
tive control of the fluid pressure to spray guns, dis-
pensing valves or atomizing heads.
Regulators installed at circulating line take-offs or
pumps are used to reduce main line pressure and
maintain the desired fluid pressure to the spray gun or
atomizing head.
Before Installing the Fluid Regulator
1. Determine where to locate the regulator.
2. Install a ball valve for the regulator inlet and outlet.
3. Install temporary plumbing between the ball
valves.
4. Thoroughly flush the system to remove metal
chips and other contaminants and to check for
leaks.
Installing the Fluid Regulator
1. Remove the temporary plumbing and install one
regulator for each spray gun. See the Dimension-
al Drawing on page 16 for regulator dimensions.
Mount the regulator in a vertical position, as shown
above, for the best flow and minimum pigment
settling. The gauge, if used, must be mounted
vertically. If the regulator is mounted horizontally,
an elbow must be used so the gauge will be
vertical.
2. Put the sealer on threaded connections, except on
swivel unions as it interferes with the swivel action.
3. Flush and test the entire system. Be sure to follow
the flushing procedure on page 5.

5307212
Operation
CAUTION
The new system must be cleaned and tested
thoroughly before admitting fluid to the regulator
to avoid contaminants clogging or damaging the
regulator.
Always use the lowest possible air and fluid
pressures for your application. High pressures
cause premature spray nozzle and pump wear.
NOTE: Reference numbers and letters in parentheses
in the text refer to the Figs. and Parts Drawing.
Pressure Relief Procedure
WARNING
INJECTION HAZARD
Fluid under high pressure can be in-
jected 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:
are instructed to relieve the pressure,
stop spraying,
check or service any of the system equipment,
or install or clean the spray tip.
1. Shut off the pump.
2. Close the fluid regulator’s inlet ball valve. Refer to
Fig. 1.
3. Relieve fluid pressure in the fluid regulator by
triggering the spray gun.
Flushing Procedure
1. Flush the regulator with a compatible solvent
whenever the rest of the system is flushed.
2. Remove the gauge if the fluid pressure will exceed
the gauge range.
3. Spring Operated Regulators Only
a. After flushing, turn the key (24) clockwise to
the previous setting. See Fig. 3.Shut off the
pump and relieve fluid pressure in the system
by opening the back pressure valve or other
bypass valve. See Fig. 1.
a. After flushing, turn the key (24) clockwise to
the previous setting. See Fig. 3.Turn the
external hex (B) of the adjusting key (24)
counterclockwise to open the regulator valve.
See Fig. 3.
4. Air Operated Regulator Only
a. After flushing, turn the key (24) clockwise to
the previous setting. See Fig. 3.Make sure the
air pressure going to the regulator is shut off
and any air pressure in the line is relieved.
a. After flushing, turn the key (24) clockwise to
the previous setting. See Fig. 3.Make sure the
air bleed hole in the air line fitting (29) is not
plugged. See Fig. NO TAG.
5. Flush until thoroughly clean. Always use the lowest
possible pressure when flushing.
6. Spring Operated Regulators Only
a. After flushing, turn the key (24) clockwise to
the previous setting. See Fig. 3..

6307212
Operation
Regulating Fluid Pressure
Spring Operated Regulator
1. Close the regulator: engage the internal hex (A) of
the key (24) with the adjusting screw (12) and turn
it counterclockwise to relieve the spring tension.
See Fig. 3.
2. Start the pump and open the fluid regulator’s inlet
ball valve to admit fluid to the regulator. See Fig. 1.
3. Turn the key (24) clockwise to increase fluid pres-
sure. See Fig. 3. Adjust for the desired spray
pattern. Before reducing the regulator pressure,
partially relieve pressure in the gun hose to ensure
the correct gauge reading.
Air Operated Regulator
1. Start the pump and open the fluid regulator’s inlet
ball valve to admit fluid to the regulator. See Fig. 2.
2. Increase the air pressure to obtain the desired fluid
pressure. before reducing the regulator pressure,
partially relieve pressure in the gun hose to ensure
the correct gauge reading.
NOTE: Make sure the air bleed hole in the air line
fitting (29) is not plugged. Refer to page 8.
For the best results, use an air regulator with at least a
two inch diameter diaphragm to control this fluid regu-
lator.
12
24
B
A
Fig. 3

7307212
Troubleshooting
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 5.
Before servicing this equipment always make sure to
Relieve the Pressure.
Check all possible remedies in the Troubleshooting
Chart before disassembling the fluid regulator.
Problem Cause Solution
No pressure regulation Damaged or clogged air regulator or
line (214980 only)
Clear obstruction in line, service regu-
lator if necessary.
Damaged diaphragm (22) Replace diaphragm.
Fluid leaks from under cap Loose cap (7) Tighten screws (1) in sequence
shown in Service section.
Worn gasket (26) Replace gasket.
Pressure creeps above setting Damaged or clogged air regulator or
line (214980 only)
Clear obstruction in line, service regu-
lator if necessary.
Damaged diaphragm (22) Replace diaphragm.
Seat leaking (16) Replace ball (20), seat, and gasket
(15).
Pressure drops below setting Damaged or clogged air regulator or
line (214980 only)
Clear obstruction in line, service regu-
lator if necessary.
Empty/clogged supply line Fill/flush supply line.
Clogged air spray gun or fluid dis-
pensing valve.
Replace, see gun or valve manual for
service instructions.
Using regulator beyond its rated flow
capacity, see the Technical Data on
Page 16.
Install additional regulators.

8307212
Service
Service of the Air Operated Regulators
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. Shut off the pump.
2. Close the ball valve at the regulator’s air inlet.
Refer to Fig. 2.
3. Release all the air and fluid pressure in the regula-
tor and disconnect the air and fluid lines.
4. Remove the swivel union (23) and spring (40) from
the regulator body.
5. Remove the ball (20), seat (16), and gasket (15).
See Fig. NO TAG.
CAUTION
Use special care when handling the hard carbide ball
(20) and seat (16) to avoid damaging them.
6. Remove the six cap screws (1) while holding the
regulator cap (7) to the housing (6).
7. Remove the retaining screw (10), jam nut (13) and
washer (17) from the stem housing (18).
8. Remove the diaphragm (22) and gasket (26).
9. Remove the spring (3), valve stem (9), and gasket
(21) from the stem housing (18).
10. Thoroughly clean and inspect all parts. Replace
any parts that appear to be worn or damaged.
11. One at a time, place the gasket (26), diaphragm
(22) – white side down toward the bottom
housing, and washer (17) on the stem housing
(18). Secure them with the jam nut (13). Torque
the jam nut onto the stem housing to 21–35 ft-lb
(28–47 Nm).
12. Install the valve stem (9), spring (3), gasket (21),
and retaining screw (10) in the stem housing (18).
Torque the retaining screw into the housing to
21–25 ft-lb (28–34 Nm).
13. Install the assembled parts in the housing (6).
14. On Model 214980, tighten the air line fitting (29)
into the cap (7). Torque to 21–35 ft-lb (28–47
Nm).
15. Install the cap (7). Tighten the six cap screws (1) in
the sequence shown in Fig. NO TAG, Bottom
View, and to the torque noted.
16. Install the gasket (15), valve seat (16), and ball
(20) into the housing (6).
NOTE: Seat may be turned upside down and reused.
17. Screw the swivel union (23), with the o-ring at-
tached and the spring (40) in place, into the inlet.
Torque to 23–27 ft-lb (31–36 Nm).
Models 214980 (shown) & 244375
29
10
13
23
7
117
22
26
18
9
15
16
4
20
40
621 3
NOTE: Numbers indicate tightening sequence. Tighte
n
evenly to 7–10 in-lb (0.8–1.1 Nm), then retorque t
o
125 in-lb (14 Nm) three times, consecutively, to co
m
pensate for diaphragm relaxation.
5
2
4
6
1
3
BOTTOM VIEW
Air Bleed Hole
Fig. 4
1
3
2
Torque to 21–35 ft-lb
(28–47 Nm) 1
1
Torque to 21–25 ft-lb
(28–34 Nm) 2
Torque to 23–27 ft-lb
(31–36 Nm)
3
PTFE

9307212
Service
Service of the Spring Operated Regulators
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. Shut off the pump.
2. Close the ball valve at the regulator’s air inlet. See
Fig. 1.
3. Release all the air and fluid pressure in the regula-
tor and disconnect the fluid line.
4. Remove the regulator from the system.
5. Close the regulator by engaging the internal hex
portion of the key (24) with the adjusting screw
(12) and turning it counterclockwise all the way.
See Fig. 3.
6. Remove the swivel union (23) from the regulator
inlet.
7. Remove the ball (20), valve seat (16), and gasket
(15). See Fig. 5.
CAUTION
Use special care when handling the hard carbide ball
(20) and seat (16) to avoid damaging them.
8. Remove the six cap screws (1) while holding the
cap (7) to the housing (6).
9. Remove the cap, adjusting screw (12) and spring
(5).
10. Remove the stem retaining screw (10), jam nut
(13), and washer (17) from the stem housing (18).
11. Remove the diaphragm (25) – on Models 217314
and 221118 only, diaphragm (22), and gasket (26).
12. Remove the spring (3), valve stem (9) and gasket
(21) from the stem housing.
13. Thoroughly clean and inspect all parts. Replace
any parts that appear to be worn or damaged.
14. One at a time, place the gasket (26), diaphragm
(22) – white side down toward bottom
housing, diaphragm (25) – on Models 217314 and
221118 only, and washer (17) on the stem housing
(18). Secure them with the jam nut (13).
NOTE: On Models 217314 and 221118, align the
holes on the diaphragms (25 & 22) before tightening
the jam nut (13).
15. Torque the jam nut (13) onto the stem housing (18)
to 21–35 ft-lb (28–47Nm).
16. Install the valve stem (9), spring (3), gasket (21)
and retaining screw (10) in the stem housing (18).
17. Torque the retaining screw (10) into the housing to
21–25 ft-lb (28–34 Nm).
18. Install the spring, adjusting screw (12) and cap on
the housing (6). Tighten six capscrews (1) in the
sequence shown in Fig. 5, Bottom View, and to
the torque noted.
19. Install the gasket (15), valve seat (16), and ball
(20) into the housing (6).
NOTE: Seat may be turned upside down and reused.
20. Screw the swivel union (23), with the o-ring (4)
attached, into the inlet. Torque to 23–27 ft-lb
(31–36 Nm).
PTFE

10 307212
Service
10
Models 217314
and 221118
Models 214895,
214706 and 243414
21
12
13
22
25
17
26
3
15
16
23
40
6
9
18
4
20
1
7
10
21
12
13
22
17
26
3
15
16
23
40
6
9
18
4
20
1
7
5
2
4
6
1
3
BOTTOM VIEW
Mylar
NOTE: Numbers indicate tightening sequence. Tighten
evenly to 7–10 in-lb (0.8–1.1 Nm), then retorque
to 125 in-lb (14 Nm) three times, consecutively,
to compensate for diaphragm relaxation.
Fig. 5
1
3
4
2
Torque to 21–25 ft-lb
(28–34 Nm)
1
Torque to 21–35 ft-lb
(28–47 Nm)
2
2
Torque to 23–27 ft-lb
(31–36 Nm)
3
1
side down
toward housing (6)
4
4
3
PTFE