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Precision Orifices .0003" to .125" Diameter Sapphire, Brass Stainless Steel

Miniature In-Line Screens & Breathers 10, 15, 25, 100 microns 1/8", 1/4" NPT 10-32 thread

Pneumatic Pressure/ Temperature Switch Non-electric pressure and temperature sensing

Air Proximity Sensors Non-contact, No moving parts Detects presence of an object up to 1/8"

Pneumatic Level Switch Senses Liquid Level, Provides Pneumatic Output

Compressed Air Dryers Removes water vapor from compressed air through self-regenerating desiccant

Fixed Flow Rate  Orifice For Water 1/4" through 1-1/2" NPT .20 GPM through 100 GPM

Miniature Stainless Steel Fittings Bulkheads ? Barbs ?   Pipe Fittings

Accessories Tubing - Fittings Filters - Flow Meters Regulators Air/Electric Switches Digital Air Switches

Check Valves and  Fixed Flow Controls 1/8", 1/4" NPT 10-32 Threads Brass ? Stainless Steel

Checked Orifices Check Valve and Orifice in One Fitting!

Metric Orifices & Miniature Check Valves M3-M12 Threads Brass ? Stainless Steel

Description
The restrictors incorporate a precision synthetic sapphire orifice 
which is fitted within a main body. The sapphire orifice is a stable, 
accurate flow restrictor. Standard sizes range from .0012" to .0252" 
orifice diameter in 32 increments.
Applications
? Precision Flow Control - Gases or Liquids
?..Accurate Timing in Pneumatic or Hydraulic Circuits
? Pressure Dividing Circuits and Pneumatic Resistance Bridges
? Impedance Matching
Kits
See page 31 for kit selection.
General Specifications
MaximumOperatingPressure – 100 psig
FlowDirection – Preferred direction shown below.
Not recommended for reverse flow.
Flow – See flow chart for air on page 22.
Orifice Diameters – .0012" to .0252"
Orifice Diameter Accuracy – ±.0003"
Cv
Range – .00003 to .013 See page 22.
FluidMedia – Air, Water, Gases and Liquids compatible with 
materials of construction.
Dimensions – See drawings on page 4, 5.
Size Orifice Diameter
Number mm In.
. 3. .03. .0012
. 4. .04. .0016
. 5. .05. .0020
. 6. .06. .0024
. 7. .07. .0028
. 8. .08. .0031
. 9. .09. .0035
. 10. .10. .0039
. 11. .11. .0043
. 12. .12. .0047
. 13. .13. .0051
. 14. .14. .0055
. 15. .15. .0059
. 16. .16. .0063
. 17. .17. .0067
. 18. .18. .0071
. 20. .20. .0079
. 22. .22. .0087
. 24. .24. .0094
. 26. .26. .0102
. 28. .28. .0110
. 30. .30. .0118
. 32. .32. .0126
. 34. .34. .0134
. 36. .36. .0142
. 40. .40. .0157
. 44. .44. .0173
. 48. .48. .0189
. 52. .52. .0205
. 54. .54. .0213
. 58. .58. .0228
. 64. .64. .0252
SapphireSizesAvailable
.0012" to .0252" DIA.
PartNumbers
The complete part number for an orifice assembly includes Type, 
Size Number, Body Material and Options. 
EXAMPLES
Size Number Body Part
Type (Orifice Dia.) Material Options Number
. A 3 (.0012") Nylon — A-3-NY
 S 5 (.0020") Brass — S-5-BR
 S 5 (.0020") Brass EN S-5-BR-EN
 J 10 (.0039") Brass — J-10-BR
 J 10 (.0039") SS — J-10-SS
Options
? Electroless nickel plating is available on Type S and 
 Type L. Add suffix EN.
? Plating is for external appearance only.
? See page 37 for screened orifices.
(More on pages 4, 5.)
The restrictors should be installed with flow in the direction shown above. The flow 
data provided in this catalog is measured for the flow direction shown above.
Construction
 Type F Type A
 Type S Type J, EA
 Type L Type P
 Type SF Type BTF, BWF
Large 
Bore End
Small 
Bore End
Large 
Bore End Small 
Bore End
Large 
Bore End
Small 
Bore End Large 
Bore End
Small 
Bore End
Large 
Bore End
Small 
Bore 
End
Large 
Bore End Small 
Bore End
 Type A-44FTX Type A-MC4
3
Type A
Insert
Type F
Insert
Type A
Type A Insert
Insert P.O. BOX Q ? TRUMBULL, CT 06611 ? CT PHONE (203) 261-6711 ? TOLL FREE PHONE (800) 533-3285 ? FAX (203) 261-8331
?O'KEEFE ConTROLS CO. ? 2010ALL RIGHTS RESERVED e-mail ca@okcc.com ? website www.okcc.com
Sapphire Orifice Assemblies
Dimensions Specifications
PLASTIC INSERT
Body – Nylon
Orifice – Synthetic Sapphire
Press fits into bore – .125"/.126"
Standard Orifice Sizes – .0012" to .0252" Dia.
PLASTIC INSERT
Body – Nylon
Orifice – Synthetic Sapphire
Press fits into bore – .132"/.133"
Fitsintotubing– 1/8" ID Flexible Plastic
Standard Orifice Sizes – .0012" to .0252" Dia.
HEX NIPPLE
Body – Brass or 303 SS
Insert – Nylon
Orifice – Synthetic Sapphire
Threads – 1/8" NPT
Standard Orifice Sizes – .0012" to .0252" Dia.
HEX NIPPLE
Body – Brass or 303 SS
Insert – Nylon
Orifice – Synthetic Sapphire
Threads – 1/4" NPT
Standard Orifice Sizes – .0012" to .0252" Dia.
ADAPTER
Body – Brass Seal – Viton
Orifice – Synthetic Sapphire
Thread – 10-32 UNF
Barb– For 1/16" ID Tubing
Option – Electroless nickel plating on brass
Standard Orifice Sizes – .0012" to .0252" Dia.
DUAL BARB
Body – Brass
Orifice – Synthetic Sapphire
Barb – For 1/16" or 3/32" ID Tubing
Option – Electroless nickel plating on brass
Standard Orifice Sizes – .0012" to .0252" Dia.
DUAL BARB
Body – Brass
Orifice – Synthetic Sapphire
Barb – For 1/16" ID Tubing
Standard Orifice Sizes – .0012" to .0252" Dia.
(More on page 5.)
Type A
Type F
Type J
Type EA
Type L
Type S
Type SF
.0012" to .0252" DIA.
4
 10-32 Straight Thread
Seal
 1/4" HEX
.530"
 Barb for 1/16" ID 
Tubing
1/8" NPT - both ends
7/16" HEX
.970"
.134"/.137" Dia.
.306"
9/16" HEX
1.38"
1/4" NPT - Both Ends
Press Fit Into Bore
.125"/.126" Dia.
.128"/.129" Dia. .194"/.196" Dia.
.110" .196"
Barb for 1/16" or 3/32" 
ID Tubing Both Ends
9/16"
3/16" HEX
Barb for 1/16" ID Tubing
Both Ends
3/16" HEX
9/16" P.O. BOX Q ? TRUMBULL, CT 06611 ? CT PHONE (203) 261-6711 ? TOLL FREE PHONE (800) 533-3285 ? FAX (203) 261-8331
?O'KEEFE ConTROLS CO. ? 2010ALL RIGHTS RESERVED e-mail ca@okcc.com ? website www.okcc.com
Sapphire Orifice Assemblies 5
Dimensions Specifications
BLEED PLUG
Body – Brass Seal – Viton
Orifice – Synthetic Sapphire
MaximumOperatingPressure – 100 psig
Thread – 10-32 UNF
Standard Orifice Sizes – .0012" to .0252" Dia.
ADAPTER
Materials 
 Body – Brass or 303 SS
. Orifice – Sapphire/Nylon Sleeve
MaximumOperatingPressure– 100 psig
Connections – 1/8" NPT x 1/16" Barb
Orifice Sizes – .0012" to .0252" Dia.
ADAPTER
Materials 
 Body – Brass or 303 SS
. Orifice – Sapphire/Nylon Sleeve
MaximumOperatingPressure– 100 psig
Connections – 1/8" NPT x 1/8" Barb
Orifice Sizes – .0012" to .0252" Dia.
37° FLARED TUBE CONNECTOR
Body – Brass or 304 SS
Orifice – Sapphire/Nylon Sleeve
MaximumOperatingPressure – 200 psig
MaximumPressureDifferential – 100 psi
Orifice Sizes – .0012" to .0252" Dia.
TUBE ADAPTER
Body – 316 SS
Orifice – Sapphire/Nylon Sleeve
MaximumOperatingPressure – 100 psig
Orifice Sizes – .0012" to .0252" Dia.
For 1/4" OD metal Tubing
Made from Swagelok Male Connector

(2015W)