ITT GFH20XT1767C Gebrauchsanweisung
GFH20-IOM 05/16
WARNING - TECHNICAL DATA SUBJECT TO EAR CONTROLS
THIS DOCUMENT CONTAINS TECHNICAL DATA WHOSE EXPORT IS RESTRICTED BY THE EXPORT ADMINISTRATION ACT OF 1979, AS AMENDED
(TITLE 50, U.S.C., APP. 2401, ET SEQ.) VIOLATION OF THIS EXPORT CONTROL LAW IS SUBJECT TO SEVERE CRIMINAL PENALTIES.
ITTConoflow
105 Commerce Way
Westminster, SC 29693
Tel: (864) 647-9521
Fax: (864) 647-9574
INSTRUCTION AND MAINTENANCE MANUAL
IEEE QUALIFIED AIRPAK
MODEL GFH20XT1767C - 25 PSI (172 kPa)
GFH20XT1767F - 60 PSI (414 kPa)
GFH20XT1767G - 125 PSI (862 kPa)
CAUTION: These instructions should be read
carefully prior to installation, use or maintenance.
GENERAL PRODUCT OVERVIEW
Conoflow’s Model GFH20XT1767_ Series Airpak®,
Filter-Regulator has been qualified in accordance with
requirements of IEEE 323-1974 and the recommended
practices of IEEE 344-1975. The test program included
Thermal Aging, Radiation Aging, Wear Aging, Seismic
Qualification and Steam Line Break testing. For details
of test conditions consult the factory.
This unit is a pressure reducing, relief type regulator and
air filter combination. It is used to provide clean
regulated air pressure to instruments, controls and other
pneumatic devices. The Regulator has a maximum
supply pressure capability of 200 PSIG (1380 kPa) with
control output settings of 0-25, 0-60 and 0-125 PSIG (0-
172, 0-414 and 0-862 kPa).
This regulator is offered with ¼” NPT inlet and outlet
ports and two outlet gauge ports. A wrench knob
adjustment is standard.
CAUTION: Maximum Supply Pressure is 200 PSIG
(1380 kPa)
WARNING: This product is not recommended for use
with flammable liquids or gasses.
MATERIALS OF CONSTRUCTION
Nozzle Assembly: Brass/ Stainless Steel
Range Spring: 17-7 PH Stainless Steel
Diaphragm Assembly: Brass/Viton – Nomex Reinforced
Bowl: Brass
Body: Brass
Bonnet: Brass
O-rings: Viton
SPECIFICATIONS
Maximum Supply Pressure: 200 psig (1380 kPa)
Outlet pressure ranges are determined by the last
character in the regulator model number.
“C” 25 psig (172 kPa)
“F” 60 psig (414 kPa)
“G” 125 psig (862 kPa)
Flow Capacity: 16 SCFM (0.453 m3/min) (with 100 PSI
(690 kPa) supply pressure)
Temperature Range: -20 °F to 150 °F
(-29 °C to 66 °C)
Filter Rating: 10 micron (cellulose)
Connections: ¼” NPT Inlet and Outlet Ports,
Two ¼” NPT Gauge Ports (90 Degrees
from Outlet Port)
Weight: 3.12 lb (1.41 kg)
Note: IEEE Qualification validates ability to operate at
higher temperatures. Temperature Range is for
conformance to published specifications
WARNING
Conoflow’s products are designed and manufactured
using materials and workmanship required to meet all
applicable standards. The use of these products
should be confined to services specified and/or
recommended in the Conoflow catalogs, instructions,
or by Conoflow application engineers.
To avoid personal injury or equipment damage
resulting from misuse or misapplication of a product,
it is necessary to select the proper materials of
construction and pressure-temperature ratings which
are consistent with performance requirements.
Page 2 of 6 GFH20-IOM 05/16
WARNING - TECHNICAL DATA SUBJECT TO EAR CONTROLS
THIS DOCUMENT CONTAINS TECHNICAL DATA WHOSE EXPORT IS RESTRICTED BY THE EXPORT ADMINISTRATION ACT OF 1979, AS AMENDED
(TITLE 50, U.S.C., APP. 2401, ET SEQ.) VIOLATION OF THIS EXPORT CONTROL LAW IS SUBJECT TO SEVERE CRIMINAL PENALTIES.
STORAGE
Store per ANSI-ASME N45.2.2 Level B
INSTALLATION
CAUTION: The regulator must be installed with the
draincock downward to allow accumulated fluid to drain
out when the draincock is opened.
CAUTION: Moisture and particulates can be
discharged at high speed when draincock is opened.
Teflon tape is the preferred thread sealant for the 1/4”
NPT connections.
WARNING: If the supply line is connected to the “OUT”
port, regulator damage or unexpected flow through the
regulator could occur.
Prior to applying inlet pressure, double check the
connections and assure the wrench knob is backed out
sufficiently to unload the range spring in the bonnet.
Carefully apply inlet pressure and check the supply
connection for leakage. Adjust the output pressure by
rotating the wrench knob clockwise and check the outlet
connection for leakage.
WARNING: The wrench knob can vibrate loose and fall
out if the jam nut is not tightened.
Figure 1 – Regulator dimensions with 1/4” NPT connections.
For Certified Dimensional Drawing, Refer to A17-60
OPERATION IN SERVICE
Open upstream controls to provide the regulator supply
pressure. To increase the output set pressure, rotate the
knob clockwise. To decrease the output set pressure, rotate
the knob counterclockwise.
When the system is being shut down, it is an established
safety practice to reduce the output pressure completely,
then shut off the supply pressure to the regulator.
This will assure that no output pressure will be generated
when the supply pressure to the regulator resumes, the next
time the system is used.
FILTER AREA: 5 IN² (32 cm²)
DRIPWELL CAPACITY: 5 IN³ (82 cm³)
WEIGHT: 3.12 lbs. (1.41 kg)
Page 3 of 6 GFH20-IOM 05/16
WARNING - TECHNICAL DATA SUBJECT TO EAR CONTROLS
THIS DOCUMENT CONTAINS TECHNICAL DATA WHOSE EXPORT IS RESTRICTED BY THE EXPORT ADMINISTRATION ACT OF 1979, AS AMENDED
(TITLE 50, U.S.C., APP. 2401, ET SEQ.) VIOLATION OF THIS EXPORT CONTROL LAW IS SUBJECT TO SEVERE CRIMINAL PENALTIES.
NOTE: The downstream pressure will change as the flow
changes. As the flow increases, the delivery pressure will
decrease. See the GFH20 series representative flow
performance graphs for this product.
NOTE: The outlet set pressure will change as the inlet
pressure changes.
CAUTION: The internal filter can retain moisture from wet
air. If this product is used in a sufficiently cold (potentially
freezing) environment, a wet filter can result in restricted or
blocked flow.
TYPICAL AIR FLOW PERFORMANCE
TROUBLESHOOTING GUIDE
Symptom: External leakage
Potential Cause: Diaphragm to body joint seal
leakage.
Repair: Disassemble. Inspect regulator body where
diaphragm seals. Replace diaphragm.
Potential Cause: Bowl to body joint leakage.
Repair: Disassemble. Inspect regulator body where
bowl o-ring contacts. Inspect bowl where o-ring
contacts. Replace o-ring.
Potential Cause: Draincock leakage.
Repair: Tighten draincock by turning handle
clockwise.
Symptom: Outlet pressure cannot be adjusted to
maximum control range.
Potential Causes:
1. Control knob positive stop adjustment.
2. Flow induced droop.
Repair:
1. Adjust positive stop of control knob.
2. See NOTE in above OPERATION IN SERVICE
instructions and flow curves for explanation – a
higher range regulator may be required.
FLOW CHARACTERISTICS
0
10
20
30
40
50
60
70
0 5 10 15 20 25
FLOW (SCFM)
OUTLET (PSI)
Page 4 of 6 GFH20-IOM 05/16
WARNING - TECHNICAL DATA SUBJECT TO EAR CONTROLS
THIS DOCUMENT CONTAINS TECHNICAL DATA WHOSE EXPORT IS RESTRICTED BY THE EXPORT ADMINISTRATION ACT OF 1979, AS AMENDED
(TITLE 50, U.S.C., APP. 2401, ET SEQ.) VIOLATION OF THIS EXPORT CONTROL LAW IS SUBJECT TO SEVERE CRIMINAL PENALTIES.
Symptom: Noisy operation.
Potential Causes: Turbulence in adjacent piping.
Repair: Insure that there are no elbows, line tees or
other turbulence creating piping directly upstream or
downstream of the pressure regulator.
Symptom: Excessive air consumption.
Potential Cause: Wear to diaphragm assembly.
Repair: Replace diaphragm assembly.
FIGURE 2 – Cross Section of GFH20 Regulator
REPAIR AND MAINTENANCE
WARNING: To prevent equipment damage or injury,
insure that all system pressure is relieved and the supply
valve for this regulator is secured in the off position.
Cleanliness is critical to successful maintenance and
repair of this product. Perform all repair work in a clean
environment, with clean tools, and the correct materials
and supplies.
Tools and Materials Required:
1. A vise, or other suitable fixture, to secure the
regulator.
2. A Phillips torque screwdriver
3. A torque wrench with a 5/8” socket
4. Lint free swabs or wipes to clean components
DISASSEMBLY
1. Secure the body of the regulator.
2. Turn control knob (1) counterclockwise until the
range spring (7) is unloaded.
3. Remove the six screws (4) holding the bonnet (5)
to the body (12).
4. Remove the bonnet (5).
5. Remove the spring button (6) and spring (7).
6. If present, remove the restricting plate (8).
7. Remove the diaphragm SA (9).
8. Remove the baffle plate (10).
9. Loosen the nozzle retaining nut and remove the
nozzle (11).
10. Remove the dripwell (22) by unscrewing the cap
nut (24) and pulling downward away from the body
(12).
11. To remove the filter remove the filter spring (21)
and the filter plate (19) with attached grommet
(20).
12. To remove the bowl o-ring remove the retaining
plate (16).
13. Remove the cap nut o-ring (23) from the groove in
the cap nut (24)
ASSEMBLY
1. Replace worn or damaged components with new
components.
2. Clean and inspect components for reuse. Sealing
surfaces must be smooth and free of wear or
scratches.
3. Replace the o-ring (23) around the cap nut (24).
4. Place the bowl o-ring (15) on the o-ring groove of
the body (12).
5. Insert the retaining plate (16) into the body (12).
Place the filter (18), filter plate (19) with attached
grommet (20) and filter spring (21) onto the post
sub-assembly (17).
6. Slide the bowl (22) onto the body until it is firmly
seated against the bottom of the body (12).
7. Slide the o-ring (23) onto the cap nut groove and
screw into the bottom of the bowl (22) until it is
finger tight. Insure that the bowl is seated against
the bottom of the body.
8. Install the nozzle SA (11) into the body and torque
the nozzle retaining nut to 100 in. lbs.
9. Ensure that the baffle plate (10) is installed in the
groove in the body (12) before installing the
diaphragm SA (9). Install restricting plate (8) if
present.
10. Place spring (7) and spring plate (6) on to
diaphragm.
11. Place bonnet (5) onto body lining up holes in body
and diaphragm SA
12. Install the 6 bonnet screws (4) and torque in a star
pattern to 32 inch pounds.
Page 5 of 6 GFH20-IOM 05/16
WARNING - TECHNICAL DATA SUBJECT TO EAR CONTROLS
THIS DOCUMENT CONTAINS TECHNICAL DATA WHOSE EXPORT IS RESTRICTED BY THE EXPORT ADMINISTRATION ACT OF 1979, AS AMENDED
(TITLE 50, U.S.C., APP. 2401, ET SEQ.) VIOLATION OF THIS EXPORT CONTROL LAW IS SUBJECT TO SEVERE CRIMINAL PENALTIES.
FIGURE – 3 Exploded View of the GFH20 Airpak
Page 6 of 6 GFH20-IOM 05/16
WARNING - TECHNICAL DATA SUBJECT TO EAR CONTROLS
THIS DOCUMENT CONTAINS TECHNICAL DATA WHOSE EXPORT IS RESTRICTED BY THE EXPORT ADMINISTRATION ACT OF 1979, AS AMENDED
(TITLE 50, U.S.C., APP. 2401, ET SEQ.) VIOLATION OF THIS EXPORT CONTROL LAW IS SUBJECT TO SEVERE CRIMINAL PENALTIES.
ITEM NO. QUANTITY DESCRIPTION / MATERIAL PART NO.
1 1 Adjusting Knob / SZP G6017750
2 1 Hex Jam Nut / 18-8 SS G6900211
3 1 Panel Lock nut / SZP G6017628
4 6 Bonnet Screws / 18-8 SS G6900046
5 1 Bonnet / Brass G6017412
6 1 Spring Plate / SZP G6018857
7 1 Range Spring 0-25 PSI G6019997
7 1 Range Spring 0-60 & 0-125 PSI G6386405
8 1 Restricting Plate (0-125 PSI Only) / SZP G6017487
9 (2) 1 Diaphragm SA 0-25 & 0-60 PSI /
Brass/Viton G6374051
9 (2) 1 Diaphragm SA 0-125 PSI / Brass/Viton G6377832
10 1 Baffle Plate / Brass G6374085
11 (2) 1 Nozzle SA - Brass / Stainless G6347843
12 1 Body / Brass G6374036
13 2 ¼ NPT Pipe Plug / 18-8 SS G6900529
14 1 Aspirator Nozzle / Brass G6017982
15 (2) 1 Bowl O-Ring / Viton G6374077
16 1 Retaining Plate / Brass G6357537
17 1 Post SA / Brass / 416 SS G6374044
18 (2) 1 Filter / Cellulose G6077663
19 1 Filter Plate / Brass G6017263
20 1 Grommet / Neoprene G6077283
21 (2) 1 Filter Spring / Stainless G6017289
22 1 Dripwell (Bowl) / Brass G6386857
23 (2) 1 O-Ring / Viton G6374069
24 1 Cap Nut / Brass G6357545
25 1 Draincock / Brass G6386542
26 1 Nameplate (not shown) G6385604
NOTES:
1. When ordering spare parts, specify complete Catalog No., Item No. and Part No. This will permit positive
identification and rapid handling of order. Spare parts are commercial grade only.
Dieses Handbuch passt für folgende Modelle
2
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