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-22296 N/A RB82631 Series 0.0450 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0450 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22139 N/A RB82631 Series 0.0460 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0460 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22274 N/A RB82631 Series 0.0465 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0465 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22113 N/A RB82631 Series 0.0470 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0470 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22293 N/A RB82631 Series 0.0480 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0480 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22152 N/A RB82631 Series 0.0490 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0490 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22297 N/A RB82631 Series 0.0500 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0500 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22031 N/A RB82631 Series 0.0510 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0510 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22052 N/A RB82631 Series 0.0520 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0520 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22065 N/A RB82631 Series 0.0530 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0530 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22377 N/A RB82631 Series 0.0540 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0540 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22298 N/A RB82631 Series 0.0550 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0550 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22066 N/A RB82631 Series 0.0560 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0560 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22015 N/A RB82631 Series 0.0570 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0570 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22206 N/A RB82631 Series 0.0580 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0580 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22390 N/A RB82631 Series 0.0590 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0590 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22299 N/A RB82631 Series 0.0600 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0600 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22312 N/A RB82631 Series 0.0610 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0610 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22080 N/A RB82631 Series 0.0620 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0620 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22294 N/A RB82631 Series 0.0625 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0625 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22086 N/A RB82631 Series 0.0630 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0630 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22396 N/A RB82631 Series 0.0640 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0640 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22302 N/A RB82631 Series 0.0650 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0650 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22205 N/A RB82631 Series 0.0660 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0660 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
RB82631SS-22208 N/A RB82631 Series 0.0680 Inch (in) Inner Diameter (I.D.) and 0.118 Inch (in) Outer Diameter (O.D.) Stainless Steel Orifice Union N/A 0.0680 in N/A 1/4 in N/A 1/4 in N/A 0.1180 in
Unit of Measure
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