Bird Precision
Bird Precision
One Spruce Street, P.O. Box 540569
Waltham, MA 02454-0569 USA
Phone: (800) 454-7369
Fax: (800) 370–6308
Email: sales@birdprecision.com
Website: www.birdprecision.com
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Stainless Union Orifice Connector for 1/4" Diameter Stainless Tubing

Stainless Steel Union Orifice Connector RB82631 connects 1/4" stainless tubing inline. Sapphire or ruby orifices are swaged in place by proprietary methods. For elevated pressure applications the flow should push the orifice into its seat in the connector for best results.

RB82631 is available with all three orifice styles. Sizes range from 0.0004" thru 0.081".
RB82631 Series Stainless Steel Orifice Union Connector
Unit of Measure
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Item #

Item Name

Orifice Inner Diameter (I.D.)

Diameter

Tube Diameter

Orifice Outer Diameter (O.D.)

RB82631SS-22243 N/A RB82631 Series 0.0700 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0700 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22217 N/A RB82631 Series 0.0720 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0720 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22310 N/A RB82631 Series 0.0730 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0730 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22303 N/A RB82631 Series 0.0750 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0750 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22227 N/A RB82631 Series 0.0780 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0780 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22311 N/A RB82631 Series 0.0810 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0810 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-24015 N/A RB82631 Series 0.0020 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0020 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24059 N/A RB82631 Series 0.0025 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0025 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24016 N/A RB82631 Series 0.0030 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0030 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24017 N/A RB82631 Series 0.0035 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0035 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24018 N/A RB82631 Series 0.0040 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0040 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24019 N/A RB82631 Series 0.0045 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0045 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24022 N/A RB82631 Series 0.0050 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0050 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24024 N/A RB82631 Series 0.0055 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0055 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24025 N/A RB82631 Series 0.0060 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0060 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24026 N/A RB82631 Series 0.0065 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0065 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24028 N/A RB82631 Series 0.0070 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0070 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24030 N/A RB82631 Series 0.0075 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0075 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24010 N/A RB82631 Series 0.0080 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0080 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24110 N/A RB82631 Series 0.0085 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0085 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24031 N/A RB82631 Series 0.0090 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0090 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24032 N/A RB82631 Series 0.0095 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0095 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24033 N/A RB82631 Series 0.0100 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0100 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24034 N/A RB82631 Series 0.0105 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0105 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24035 N/A RB82631 Series 0.0110 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0110 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
Unit of Measure
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