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Unit of Measure

Flow Direction

 N/A Metal Orifice Assemblies can be used for flow in either direction. The Air Flow and Water Flow data is for a flow direction as shown in the product images.

Material

 N/A 303 SS

Nominal Orifice Size

 N/A 22

CV

 N/A 0.011

Orifice Geometry

 N/A Round

Maximum Operating Pressure

 N/A 4000 psig

Connection A

 N/A 1/8" NPT Male

Connection B

 N/A 1/8" NPT Male

Screened

 N/A None

N/A

  • Precision Flow Control – Gases or Liquids
  • Speed Controls – Cylinders and Actuators
  • Accurate Timing in Pneumatic or Hydraulic Circuits
  • Flow Restriction
  • Accurate Throttling
  • Snubbers - Gages and Instruments
  • Ultrasonic Sound Sources

N/A

  • High Pressure Capability
  • Bi-directional Flow Compatibility
  • Economical Precision Orifice
  • Repeatable Orifice Size and Shape
  • Predictable Flow Rate

Air Flow Notes

 N/A Standard Conditions 70°F, 14.7 psia
SCFH – Standard Cu. Ft. Per Hour
SLPM – Standard Liters Per Minute
The Metal Orifice Air Flow data obtained with Type B restrictor.
Flow rates for other metal restrictors are essentially the same as for Type B.
The Metal Orifice Air Flow data supercedes previous publications.

Water Flow Notes

 N/A The Metal Orifice Water Flow data calculated based on the Cv for each orifice. Flow = Cv √ΔP. ΔP = differential pressure in psid. It is assumed that the region on either side of the orifice is fully flooded with no air pockets.

Orifice Diameter

 N/A 0.022 in

Width Across Flats (Hex)

 N/A 7/16 in

Total Length

 N/A 0.970 in

Air Flow at Pressure - Standard Cu. Ft. Per Hour (SCFH)

 N/A 1 psig: 2.73 5 psig: 6.29 10 psig: 9.17 15 psig: 11.3 20 psig: 13.5 25 psig: 15.5 30 psig: 17.4 40 psig: 21.4 50 psig: 25.2 60 psig: 29.2 70 psig: 33.1 80 psig: 37.1 90 psig: 40.9 100 psig: 44.7

Air Flow at Vacuum - Standard Cu. Ft. Per Hour (SCFH)

 N/A 5 In. Hg.: 4.03 10 In. Hg.: 5.17

Air Flow at Vacuum, Choked Flow - Standard Cu. Ft. Per Hour (SCFH)

 N/A 15 In. Hg.: 5.53 20 In. Hg.: 5.53 30 In. Hg.: 5.53

Air Flow at Pressure - Standard Liters Per Minute (SLPM)

 N/A 1 psig (6.9 kPag): 1.29 5 psig (34.5 kPag): 2.97 10 psig (69.0 kPag): 4.33 15 psig (103.4 kPag): 5.35 20 psig (137.9 kPag): 6.35 25 psig (172.4 kPag): 7.30 30 psig (206.9 kPag): 8.23 40 psig (275.8 kPag): 10.1 50 psig (344.8 kPag): 11.9 60 psig (413.7 kPag): 13.8 70 psig (482.7 kPag): 15.6 80 psig (551.6 kPag): 17.5 90 psig (620.6 kPag): 19.3 100 psig (689.5 kPag): 21.1

Air Flow at Vacuum - Standard Liters Per Minute (SLPM)

 N/A 5 In. Hg. (127 Mm. Hg.): 1.90 10 In. Hg. (254 Mm. Hg.): 2.44

Air Flow at Vacuum, Choked Flow - Standard Liters Per Minute (SCFH)

 N/A 15 In. Hg. (381 Mm. Hg.): 2.61 20 In. Hg. (508 Mm. Hg.): 2.61 30 In. Hg. (762 Mm. Hg.): 2.61

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.011 2 psig: 0.016 3 psig: 0.019 4 psig: 0.022 5 psig: 0.025 6 psig: 0.027 7 psig: 0.029 8 psig: 0.031 9 psig: 0.033 10 psig: 0.035 15 psig: 0.043 20 psig: 0.049 30 psig: 0.060 40 psig: 0.070 50 psig: 0.078 60 psig: 0.085 70 psig: 0.092 80 psig: 0.098 90 psig: 0.104 100 psig: 0.110

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.042 2 psig (13.8 kPag): 0.059 3 psig (20.7 kPag): 0.072 4 psig (27.6 kPag): 0.083 5 psig (34.5 kPag): 0.093 6 psig (41.4 kPag): 0.093 7 psig (48.3 kPag): 0.110 8 psig (55.2 kPag): 0.118 9 psig (62.1 kPag): 0.125 10 psig (69 kPag): 0.132 15 psig (103.4 kPag): 0.161 20 psig (137.9 kPag): 0.186 30 psig (206.9 kPag): 0.228 40 psig (275.8 kPag): 0.263 50 psig (344.8 kPag): 0.294 60 psig (413.7 kPag): 0.323 70 psig (482.7 kPag): 0.348 80 psig (551.6 kPag): 0.372 90 psig (620.6 kPag): 0.395 100 psig (689.5 kPag): 0.416

Flow Data Status

 N/A Generic