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    The inserts shown on this page are designed to press-fit into openings accurately machined in fittings, manifolds and custom parts. There is a choice of insert sizes and materials of construction.
Unit of Measure

Material

 N/A Brass

Nominal Orifice Size

 N/A 21

CV

 N/A 0.0096

Maximum Operating Pressure

 N/A 2000 psig

Connection A

 N/A .249" Press-Fit Insert

Screened

 N/A None

Orifice Diameter

 N/A 0.021 in0.53 mm

Thread Size

 N/A 10-32

Total Length

 N/A 0.270 in

Maximum Outside Diameter

 N/A 0.2495 in

Minimum Outside Diameter

 N/A 0.2490 in

Orifice Diameter Accuracy

 N/A ±0.0005 in

Press Fit into Bore

 N/A 0.2475 to 0.2485 in

N/A

    The inserts can be used with a wide variety of fittings by accurately machining the inside of the fitting. The orifice is then pressed into the fitting for control of the flow rate of liquids or gases. Manifolds or other custom assemblies that require flow rate control of fluids can be accurately machined to press fit the orifices.

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

 N/A 1 psig: 2.39 5 psig: 5.62 10 psig: 7.48 15 psig: 9.34 20 psig: 11.1 25 psig: 12.7 30 psig: 14.4 40 psig: 17.8 50 psig: 21.2 60 psig: 24.6 70 psig: 28.0 80 psig: 31.6 90 psig: 35.0 100 psig: 38.1

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

 N/A 5 In. Hg.: 3.6 10 In. Hg.: 4.62

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

 N/A 15 In. Hg.: 4.92 20 In. Hg.: 4.92 30 In. Hg.: 4.92

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

 N/A 1 psig (6.9 kPag): 1.13 5 psig (34.5 kPag): 2.65 10 psig (69.0 kPag): 3.53 15 psig (103.4 kPag): 4.41 20 psig (137.9 kPag): 5.22 25 psig (172.4 kPag): 6.01 30 psig (206.9 kPag): 6.81 40 psig (275.8 kPag): 8.42 50 psig (344.8 kPag): 10.0 60 psig (413.7 kPag): 11.6 70 psig (482.7 kPag): 13.2 80 psig (551.6 kPag): 14.9 90 psig (620.6 kPag): 16.5 100 psig (689.5 kPag): 18.0

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

 N/A 5 In. Hg. (127 Mm. Hg.): 1.70 10 In. Hg. (254 Mm. Hg.): 2.18

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

 N/A 15 In. Hg. (381 Mm. Hg.): 2.32 20 In. Hg. (508 Mm. Hg.): 2.32 30 In. Hg. (762 Mm. Hg.): 2.32

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.010 2 psig: 0.014 3 psig: 0.017 4 psig: 0.019 5 psig: 0.021 6 psig: 0.024 7 psig: 0.025 8 psig: 0.027 9 psig: 0.029 10 psig: 0.030 15 psig: 0.037 20 psig: 0.043 30 psig: 0.053 40 psig: 0.061 50 psig: 0.068 60 psig: 0.074 70 psig: 0.080 80 psig: 0.086 90 psig: 0.091 100 psig: 0.096

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.036 2 psig (13.8 kPag): 0.051 3 psig (20.7 kPag): 0.063 4 psig (27.6 kPag): 0.073 5 psig (34.5 kPag): 0.081 6 psig (41.4 kPag): 0.081 7 psig (48.3 kPag): 0.096 8 psig (55.2 kPag): 0.103 9 psig (62.1 kPag): 0.109 10 psig (69 kPag): 0.115 15 psig (103.4 kPag): 0.141 20 psig (137.9 kPag): 0.163 30 psig (206.9 kPag): 0.199 40 psig (275.8 kPag): 0.230 50 psig (344.8 kPag): 0.257 60 psig (413.7 kPag): 0.281 70 psig (482.7 kPag): 0.304 80 psig (551.6 kPag): 0.325 90 psig (620.6 kPag): 0.345 100 psig (689.5 kPag): 0.363

Flow Data Status

 N/A Generic