Set screw style threaded orifice inserts can be installed in fittings, manifolds or custom parts to establish flow rates of liquids or gases. Standard size orifices range from .004" to .063". Both brass and 316 SS materials are offered.
Unit of Measure

Material

N/A 316 SS

Nominal Orifice Size

N/A 13

Connection A

N/A 1/4"-20 UNC Threaded Insert

Screened

N/A None

Orifice Diameter

N/A 0.013 in

Thread Size

N/A 1/4-20

Width Across Flats (Hex)

N/A 1/8 in

Total Length

N/A 0.25 in

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

N/A 1 psig: 0.962 5 psig: 2.25 10 psig: 3.14 15 psig: 3.92 20 psig: 4.64 25 psig: 5.30 30 psig: 5.98 40 psig: 7.31 50 psig: 8.62 60 psig: 10.0 70 psig: 11.3 80 psig: 12.6 90 psig: 13.9 100 psig: 15.3

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

N/A 5 In. Hg.: 1.4 10 In. Hg.: 1.77

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

N/A 15 In. Hg.: 1.91 20 In. Hg.: 1.91 30 In. Hg.: 1.91

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

N/A 1 psig (6.9 kPag): 0.45 5 psig (34.5 kPag): 1.06 10 psig (69.0 kPag): 1.48 15 psig (103.4 kPag): 1.85 20 psig (137.9 kPag): 2.19 25 psig (172.4 kPag): 2.50 30 psig (206.9 kPag): 2.82 40 psig (275.8 kPag): 3.45 50 psig (344.8 kPag): 4.07 60 psig (413.7 kPag): 4.70 70 psig (482.7 kPag): 5.32 80 psig (551.6 kPag): 5.95 90 psig (620.6 kPag): 6.58 100 psig (689.5 kPag): 7.22

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

N/A 5 In. Hg. (127 Mm. Hg.): 0.661 10 In. Hg. (254 Mm. Hg.): 0.834

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

N/A 15 In. Hg. (381 Mm. Hg.): 0.902 20 In. Hg. (508 Mm. Hg.): 0.902 30 In. Hg. (762 Mm. Hg.): 0.902

Water Flow - Gallons/minute (GPM)

N/A 1 psig: 0.0038 2 psig: 0.0054 3 psig: 0.0066 4 psig: 0.0076 5 psig: 0.0085 6 psig: 0.0093 7 psig: 0.0101 8 psig: 0.0107 9 psig: 0.0114 10 psig: 0.0120 15 psig: 0.0147 20 psig: 0.0170 30 psig: 0.0208 40 psig: 0.0240 50 psig: 0.0269 60 psig: 0.0294 70 psig: 0.0318 80 psig: 0.0340 90 psig: 0.0360 100 psig: 0.0380

Water Flow - Liters/minute (LPM)

N/A 1 psig (6.9 kPag): 0.0144 2 psig (13.8 kPag): 0.0203 3 psig (20.7 kPag): 0.0249 4 psig (27.6 kPag): 0.0288 5 psig (34.5 kPag): 0.0322 6 psig (41.4 kPag): 0.0322 7 psig (48.3 kPag): 0.0381 8 psig (55.2 kPag): 0.0407 9 psig (62.1 kPag): 0.0432 10 psig (69 kPag): 0.0455 15 psig (103.4 kPag): 0.0557 20 psig (137.9 kPag): 0.0643 30 psig (206.9 kPag): 0.0788 40 psig (275.8 kPag): 0.0910 50 psig (344.8 kPag): 0.1017 60 psig (413.7 kPag): 0.1114 70 psig (482.7 kPag): 0.1203 80 psig (551.6 kPag): 0.1287 90 psig (620.6 kPag): 0.1365 100 psig (689.5 kPag): 0.1438

Flow Data Status

N/A Generic