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-24111 N/A RB82631 Series 0.0115 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0115 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24036 N/A RB82631 Series 0.0120 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0120 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24112 N/A RB82631 Series 0.0125 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0125 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24037 N/A RB82631 Series 0.0130 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0130 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24038 N/A RB82631 Series 0.0135 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0135 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24039 N/A RB82631 Series 0.0140 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0140 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24040 N/A RB82631 Series 0.0145 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0145 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24041 N/A RB82631 Series 0.0150 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0150 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24113 N/A RB82631 Series 0.0155 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0155 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24114 N/A RB82631 Series 0.0160 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0160 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24115 N/A RB82631 Series 0.0165 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0165 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24046 N/A RB82631 Series 0.0170 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0170 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24050 N/A RB82631 Series 0.0180 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0180 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24005 N/A RB82631 Series 0.0185 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0185 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24051 N/A RB82631 Series 0.0190 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0190 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24029 N/A RB82631 Series 0.0200 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0200 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24060 N/A RB82631 Series 0.0210 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0210 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24014 N/A RB82631 Series 0.0230 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0230 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24009 N/A RB82631 Series 0.0240 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0240 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24054 N/A RB82631 Series 0.0290 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0290 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-24027 N/A RB82631 Series 0.0330 Inch (in) Inner Diameter (I.D.) and 0.087 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0330 in N/A 1/4 in N/A 1/4 in N/A 0.0870 in
RB82631SS-22329 N/A RB82631 Series 0.0004 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0004 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22320 N/A RB82631 Series 0.0005 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0005 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22023 N/A RB82631 Series 0.0006 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0006 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22104 N/A RB82631 Series 0.0008 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0008 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
Unit of Measure
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