Buying Guide

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Copper Fittings
Dimensional Data
DIMENSIONAL DATA – SOLDER JOINT FITTING ENDS
Solder Joint Fittings – Tolerances Solder Joint Fittings Solder Joint Fittings
Copper Alloy – Pressure
1, 2
Copper Alloy – Drainage
3, 4
Male End (Fitting Connector) Female End (Solder Cup)
Nominal Diameter Diameter Fitting End Length Solder Cup Length Fitting End Length Solder Cup Length
Water Tube Min. Max. Min. Max. Min. Min. Min. Min.
Size (In Inches) Inch (mm) Inch (mm) Inch (mm) Inch (mm) Inch (mm) Inch (mm) Inch (mm) Inch (mm)
1/8 0.248 (6.30) 0.251 (6.38) 0.252 (6.40) 0.256 (6.50) 0.31 (7.9) 0.25 (6.4) N/A N/A N/A N/A
1/4 0.373 (9.47) 0.376 (9.55) 0.377 (9.58) 0.381 (9.68) 0.38 (9.7) 0.31 (7.9) N/A N/A N/A N/A
3/8 0.497 (12.62) 0.501 (12.73) 0.502 (12.75) 0.506 (12.85) 0.44 (11.2) 0.38 (9.7) N/A N/A N/A N/A
1/2 0.622 (15.80) 0.626 (15.90) 0.627 (15.93) 0.631 (16.03) 0.56 (14.2) 0.50 (12.7) N/A N/A N/A N/A
5/8 0.747 (18.97) 0.751 (19.08) 0.752 (19.10) 0.756 (19.20) 0.69 (17.5) 0.62 (15.7) N/A N/A N/A N/A
3/4 0.872 (22.15) 0.876 (22.25) 0.877 (22.28) 0.881 (22.38) 0.81 (20.6) 0.75 (19.1) N/A N/A N/A N/A
1 1.122 (28.50) 1.127 (28.63) 1.128 (28.65) 1.132 (28.75) 0.97 (24.6) 0.91 (23.1) N/A N/A N/A N/A
1 1/4 1.372 (34.85) 1.377 (34.98) 1.378 (35.00) 1.382 (35.10) 1.03 (26.2) 0.97 (24.6) 0.56 (14.2) 0.50 (12.7)
1 1/2 1.621 (41.17) 1.627 (41.33) 1.628 (41.35) 1.633 (41.48) 1.16 (29.5) 1.09 (27.7) 0.62 (15.7) 0.56 (14.2)
2 2.121 (53.87) 2.127 (54.03) 2.128 (54.05) 2.133 (54.18) 1.41 (35.8) 1.34 (34.0) 0.69 (17.5) 0.62 (15.7)
2 1/2 2.621 (66.57) 2.627 (66.73) 2.628 (66.75) 2.633 (66.88) 1.53 (38.9) 1.47 (37.3) N/A N/A N/A N/A
3 3.121 (79.27) 3.127 (79.43) 3.128 (79.45) 3.133 (79.58) 1.72 (43.7) 1.66 (42.2) 0.81 (20.6) 0.75 (19.1)
3 1/2 3.621 (91.97) 3.627 (92.13) 3.628 (92.15) 3.633 (92.28) 1.97 (50.0) 1.91 (48.5) N/A N/A N/A N/A
4 4.121 (104.67) 4.127 (104.83) 4.128 (104.85) 4.133 (104.98) 2.22 (56.4) 2.16 (54.9) 1.06 (26.9) 1.00 (25.4)
5 5.121 (130.07) 5.127 (130.23) 5.128 (130.25) 5.133 (130.38) 2.72 (69.1) 2.66 (67.6) 1.31 (33.3) 1.25 (31.8)
6 6.121 (155.47) 6.127 (155.63) 6.128 (155.65) 6.133 (79.58) 3.22 (81.8) 3.09 (78.5) 1.62 (41.1) 1.50 (38.1)
8 8.119 (206.22) 8.127 (206.43) 8.128 (206.45) 8.133 (206.58) 4.09 (103.9) 3.97 (100.8) 2.12 (53.8) 2.00 (50.8)
10 10.119 (257.02) 10.127 (257.23) 10.128 (257.25) 10.133 (257.38) 4.12 (104.6) 4.00 (101.6) N/A N/A N/A N/A
12 12.119 (307.82) 12.127 (308.03) 12.128 (308.05) 12.133 (308.18) 4.62 (117.3) 4.50 (114.3) N/A N/A N/A N/A
1
As shown Standard ASME B16.18
2
As shown Standard ASME B16.22
3
As shown Standard ASME B16.23
4
As shown Standard ASME B16.29
The mechanics of making both the solder joint and the brazing joint are comparatively similar. Complete instructions
on proper techniques of both of these joining methods are outlined in this catalog on pages 46-48.
A very important consideration in Copper Piping is the selection of the proper bonding medium. As a general rule, the working
temperature of the installation is a more important consideration than the working pressures. If the working temperature is not over
250°F (121°C), either 50-50%* or 95-5% solder can be used successfully. However, if the temperature exceeds 250°F (121°C), a low
temperature brazing alloy should be used, with a melting temperature somewhat in excess of 1000°F (538°C).
According to BMS report No. 58, joints made with tin or tin-alloy solders should not be subject continuously to temperatures above
250°F (121°C). A number of brazing alloys are available and a careful study should be made in every case to determine the proper
alloy for the particular application.
* The Safe Drinking Water Act Amendment of 1986 prohibits the use in potable water systems of any solder having a lead content in excess of 0.2%.
U.S. customary units in this document are the standard; the metric units are provided for
reference only. The values stated in each system are not exact equivalents.