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 Brass

Nominal Orifice Size

N/A 94

CV

N/A 0.200

Orifice Geometry

N/A Round

Maximum Operating Pressure

N/A 2000 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 0.0940 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: 60.2 5 psig: 131 10 psig: 172 15 psig: 207 20 psig: 242 25 psig: 278 30 psig: 314 40 psig: 384 50 psig: 456 60 psig: 530 70 psig: 604 80 psig: 678 90 psig: 750 100 psig: 831

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

N/A 5 In. Hg.: 84.9 10 In. Hg.: 106

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

N/A 15 In. Hg.: 110 20 In. Hg.: 110 30 In. Hg.: 110

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

N/A 1 psig (6.9 kPag): 28.4 5 psig (34.5 kPag): 61.9 10 psig (69.0 kPag): 81 15 psig (103.4 kPag): 97.8 20 psig (137.9 kPag): 114 25 psig (172.4 kPag): 131 30 psig (206.9 kPag): 148 40 psig (275.8 kPag): 181 50 psig (344.8 kPag): 215 60 psig (413.7 kPag): 250 70 psig (482.7 kPag): 285 80 psig (551.6 kPag): 320 90 psig (620.6 kPag): 354 100 psig (689.5 kPag): 392

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

N/A 5 In. Hg. (127 Mm. Hg.): 40.1 10 In. Hg. (254 Mm. Hg.): 50

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

N/A 15 In. Hg. (381 Mm. Hg.): 52.1 20 In. Hg. (508 Mm. Hg.): 52.1 30 In. Hg. (762 Mm. Hg.): 52.1

Water Flow - Gallons/minute (GPM)

N/A 1 psig: 0.200 2 psig: 0.283 3 psig: 0.346 4 psig: 0.400 5 psig: 0.447 6 psig: 0.490 7 psig: 0.529 8 psig: 0.566 9 psig: 0.600 10 psig: 0.632 15 psig: 0.775 20 psig: 0.894 30 psig: 1.095 40 psig: 1.265 50 psig: 1.414 60 psig: 1.549 70 psig: 1.673 80 psig: 1.789 90 psig: 1.897 100 psig: 2.000

Water Flow - Liters/minute (LPM)

N/A 1 psig (6.9 kPag): 0.757 2 psig (13.8 kPag): 1.071 3 psig (20.7 kPag): 1.311 4 psig (27.6 kPag): 1.514 5 psig (34.5 kPag): 1.693 6 psig (41.4 kPag): 1.854 7 psig (48.3 kPag): 2.003 8 psig (55.2 kPag): 2.141 9 psig (62.1 kPag): 2.271 10 psig (69 kPag): 2.394 15 psig (103.4 kPag): 2.932 20 psig (137.9 kPag): 3.386 30 psig (206.9 kPag): 4.147 40 psig (275.8 kPag): 4.788 50 psig (344.8 kPag): 5.353 60 psig (413.7 kPag): 5.864 70 psig (482.7 kPag): 6.334 80 psig (551.6 kPag): 6.772 90 psig (620.6 kPag): 7.182 100 psig (689.5 kPag): 7.571

Flow Data Status

N/A Generic