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-22081 N/A RB82631 Series 0.0100 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22050 N/A RB82631 Series 0.0105 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22181 N/A RB82631 Series 0.0107 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0107 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22051 N/A RB82631 Series 0.0110 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22053 N/A RB82631 Series 0.0115 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22124 N/A RB82631 Series 0.0116 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0116 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22010 N/A RB82631 Series 0.0120 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22054 N/A RB82631 Series 0.0125 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22088 N/A RB82631 Series 0.0129 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0129 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22055 N/A RB82631 Series 0.0130 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22056 N/A RB82631 Series 0.0135 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22057 N/A RB82631 Series 0.0140 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22058 N/A RB82631 Series 0.0145 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22059 N/A RB82631 Series 0.0150 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22060 N/A RB82631 Series 0.0155 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22061 N/A RB82631 Series 0.0160 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22062 N/A RB82631 Series 0.0165 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22112 N/A RB82631 Series 0.0168 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0168 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22063 N/A RB82631 Series 0.0170 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22067 N/A RB82631 Series 0.0175 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0175 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22068 N/A RB82631 Series 0.0180 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22069 N/A RB82631 Series 0.0185 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22071 N/A RB82631 Series 0.0190 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
RB82631SS-22074 N/A RB82631 Series 0.0195 Inch (in) Inner Diameter (I.D.) and 0.060 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0195 in N/A 1/4 in N/A 1/4 in N/A 0.060 in
RB82631SS-22075 N/A RB82631 Series 0.0200 Inch (in) Inner Diameter (I.D.) and 0.060 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 0.060 in
Unit of Measure
« 6 7 8