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
Print Back
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
« 6 7 8 

Item #

Item Name

Orifice Inner Diameter (I.D.)

Diameter

Tube Diameter

Orifice Outer Diameter (O.D.)

RB82631SS-22143 N/A RB82631 Series 0.0010 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0010 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22111 N/A RB82631 Series 0.0012 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0012 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22231 N/A RB82631 Series 0.0014 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0014 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22114 N/A RB82631 Series 0.0016 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0016 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22350 N/A RB82631 Series 0.0017 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0017 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22276 N/A RB82631 Series 0.0018 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0018 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22021 N/A RB82631 Series 0.0020 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22277 N/A RB82631 Series 0.0022 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0022 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22029 N/A RB82631 Series 0.0025 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22180 N/A RB82631 Series 0.0026 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0026 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22033 N/A RB82631 Series 0.0030 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22034 N/A RB82631 Series 0.0035 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22037 N/A RB82631 Series 0.0040 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22038 N/A RB82631 Series 0.0045 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22375 N/A RB82631 Series 0.0046 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0046 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22039 N/A RB82631 Series 0.0050 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22042 N/A RB82631 Series 0.0055 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22012 N/A RB82631 Series 0.0060 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22043 N/A RB82631 Series 0.0065 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22844 N/A RB82631 Series 0.0070 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22044 N/A RB82631 Series 0.0075 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22045 N/A RB82631 Series 0.0080 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22046 N/A RB82631 Series 0.0085 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22016 N/A RB82631 Series 0.0090 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22049 N/A RB82631 Series 0.0095 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
Unit of Measure
« 6 7 8