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-22241 N/A RB82631 Series 0.0050 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22242 N/A RB82631 Series 0.0055 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22244 N/A RB82631 Series 0.0060 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22247 N/A RB82631 Series 0.0065 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22249 N/A RB82631 Series 0.0070 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22261 N/A RB82631 Series 0.0075 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22263 N/A RB82631 Series 0.0080 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22398 N/A RB82631 Series 0.0085 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22090 N/A RB82631 Series 0.0090 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22267 N/A RB82631 Series 0.0095 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22027 N/A RB82631 Series 0.0100 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22273 N/A RB82631 Series 0.0105 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22093 N/A RB82631 Series 0.0110 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22279 N/A RB82631 Series 0.0115 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22022 N/A RB82631 Series 0.0118 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0118 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22157 N/A RB82631 Series 0.0120 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22099 N/A RB82631 Series 0.0130 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22290 N/A RB82631 Series 0.0135 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22100 N/A RB82631 Series 0.0140 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22301 N/A RB82631 Series 0.0145 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22098 N/A RB82631 Series 0.0150 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22106 N/A RB82631 Series 0.0160 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22110 N/A RB82631 Series 0.0170 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22305 N/A RB82631 Series 0.0180 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
RB82631SS-22326 N/A RB82631 Series 0.0200 Inch (in) Inner Diameter (I.D.) and 0.118 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 0.1180 in
Unit of Measure
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