Precise Metal Orifice Inserts - 0.258" Press-Fit, Brass
Precise Metal Orifice Inserts - 0.258" Press-Fit, Brass
SKU:PRE-07c81b
Enhance precision and control with brass orifice inserts
Regular price
$29.99
Regular price
Sale price
$29.99
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per
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Enhance precision and control in fluid systems with our precise metal orifice inserts. Crafted from high-quality brass, these 0.258" press-fit inserts ensure accurate flow rate regulation. Ideal for fittings, manifolds, and custom assemblies, meet your specific application needs with confidence.

Product Specifications
Application 0
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.
Dimensions Maximum Outside Diameter
0.259 in
Dimensions Minimum Outside Diameter
0.258 in
Dimensions Orifice Diameter
0.0071 in | 0.18 mm
Dimensions Orifice Diameter Accuracy
±0.0005 in
Dimensions Press Fit Into Bore
0.256 to 0.257 in
Dimensions Total Length
0.156 in
Flow Data Air Flow At Pressure Standard Cu Ft Per Hour Scfh
1 psig: 0.269 | 5 psig: 0.64 | 10 psig: 0.91 | 15 psig: 1.14 | 20 psig: 1.38 | 25 psig: 1.59 | 30 psig: 1.80 | 40 psig: 2.22 | 50 psig: 2.67 | 60 psig: 3.09 | 70 psig: 3.54 | 80 psig: 3.96 | 90 psig: 4.41 | 100 psig: 4.83
Flow Data Air Flow At Pressure Standard Liters Per Minute Slpm
1 psig (6.9 kPag): 0.127 | 5 psig (34.5 kPag): 0.30 | 10 psig (69.0 kPag): 0.43 | 15 psig (103.4 kPag): 0.54 | 20 psig (137.9 kPag): 0.65 | 25 psig (172.4 kPag): 0.75 | 30 psig (206.9 kPag): 0.85 | 40 psig (275.8 kPag): 1.05 | 50 psig (344.8 kPag): 1.26 | 60 psig (413.7 kPag): 1.46 | 70 psig (482.7 kPag): 1.67 | 80 psig (551.6 kPag): 1.87 | 90 psig (620.6 kPag): 2.08 | 100 psig (689.5 kPag): 2.28
Flow Data Air Flow At Vacuum Choked Flow Standard Cu Ft Per Hour
15 In. Hg.: 0.568 | 20 In. Hg.: 0.568 | 30 In. Hg.: 0.568
Flow Data Air Flow At Vacuum Choked Flow Standard Liters Per Min
15 In. Hg. (381 Mm. Hg.): 0.268 | 20 In. Hg. (508 Mm. Hg.): 0.268 | 30 In. Hg. (762 Mm. Hg.): 0.268
Flow Data Air Flow At Vacuum Standard Cu Ft Per Hour Scfh
5 In. Hg.: 0.405 | 10 In. Hg.: 0.521
Flow Data Air Flow At Vacuum Standard Liters Per Minute Slpm
5 In. Hg. (127 Mm. Hg.): 0.191 | 10 In. Hg. (254 Mm. Hg.): 0.246
Flow Data Flow Data Status
Generic
Flow Data Water Flow Gallonsminute Gpm
1 psig: 0.0012 | 2 psig: 0.0017 | 3 psig: 0.0021 | 4 psig: 0.0024 | 5 psig: 0.0027 | 6 psig: 0.0029 | 7 psig: 0.0032 | 8 psig: 0.0034 | 9 psig: 0.0036 | 10 psig: 0.0038 | 15 psig: 0.0046 | 20 psig: 0.0054 | 30 psig: 0.0066 | 40 psig: 0.0076 | 50 psig: 0.0085 | 60 psig: 0.0093 | 70 psig: 0.0100 | 80 psig: 0.0107 | 90 psig: 0.0114 | 100 psig: 0.0120
Flow Data Water Flow Litersminute Lpm
1 psig (6.9 kPag): 0.0045 | 2 psig (13.8 kPag): 0.0064 | 3 psig (20.7 kPag): 0.0079 | 4 psig (27.6 kPag): 0.0091 | 5 psig (34.5 kPag): 0.0102 | 6 psig (41.4 kPag): 0.0102 | 7 psig (48.3 kPag): 0.0120 | 8 psig (55.2 kPag): 0.0128 | 9 psig (62.1 kPag): 0.0136 | 10 psig (69 kPag): 0.0144 | 15 psig (103.4 kPag): 0.0176 | 20 psig (137.9 kPag): 0.0203 | 30 psig (206.9 kPag): 0.0249 | 40 psig (275.8 kPag): 0.0287 | 50 psig (344.8 kPag): 0.0321 | 60 psig (413.7 kPag): 0.0352 | 70 psig (482.7 kPag): 0.0380 | 80 psig (551.6 kPag): 0.0406 | 90 psig (620.6 kPag): 0.0431 | 100 psig (689.5 kPag): 0.0454
Specifications Connection A
.258" Press-Fit Insert
Specifications Cv
0.0012
Specifications Material
Brass
Specifications Maximum Operating Pressure
2000 psig
Specifications Nominal Orifice Size
7
Specifications Screened
Screened
Specifications Screen Material
304 SS