Socket Weld Crosses are used in small bore piping networks up to size 2″, though fittings up to 4″ size are available as per ASME B16.11 : Forged Fittings, Socket Welding and Threaded. They are sparingly used to reduce inventory, and are used only when there is a space constraint such as in revamp work, offshore platforms etc. They are also used to install instrumentation on pipes and vessels. When there is no space problem, two tees are normally used. These fittings are available in three pressure ratings viz. 3000#, 6000# and 9000#. This page provides inch dimensions for 3000# rating crosses.
Available Dimensions : A | Center to Bottom of Socket, B | Socket Bore Dia, C | Socket Wall Thickness, D | Bore Dia of Fitting, J | Depth of Socket, A Tol. | Tolerance of value A.
| NPS | A | B Max | B Min | C Avg | C Min | D Max | D Min | J Min | A Tol. |
|---|---|---|---|---|---|---|---|---|---|
| 1/8 | 0.440 | 0.440 | 0.420 | 0.125 | 0.125 | 0.299 | 0.239 | 0.380 | 0.030 |
| 1/4 | 0.440 | 0.575 | 0.555 | 0.149 | 0.130 | 0.394 | 0.334 | 0.380 | 0.030 |
| 3/8 | 0.530 | 0.710 | 0.690 | 0.158 | 0.138 | 0.523 | 0.463 | 0.380 | 0.060 |
| 1/2 | 0.620 | 0.875 | 0.855 | 0.184 | 0.161 | 0.652 | 0.592 | 0.380 | 0.060 |
| 3/4 | 0.750 | 1.085 | 1.065 | 0.193 | 0.168 | 0.854 | 0.794 | 0.500 | 0.060 |
| 1 | 0.880 | 1.350 | 1.330 | 0.224 | 0.196 | 1.079 | 1.019 | 0.500 | 0.080 |
| 1-1/4 | 1.060 | 1.695 | 1.675 | 0.239 | 0.208 | 1.410 | 1.350 | 0.500 | 0.080 |
| 1-1/2 | 1.250 | 1.935 | 1.915 | 0.250 | 0.218 | 1.640 | 1.580 | 0.500 | 0.080 |
| 2 | 1.500 | 2.426 | 2.406 | 0.273 | 0.238 | 2.097 | 2.037 | 0.620 | 0.080 |
| 2-1/2 | 1.620 | 2.931 | 2.906 | 0.345 | 0.302 | 2.529 | 2.409 | 0.620 | 0.100 |
| 3 | 2.250 | 3.560 | 3.535 | 0.375 | 0.327 | 3.128 | 3.008 | 0.620 | 0.100 |
| 4 | 2.620 | 4.570 | 4.545 | 0.421 | 0.368 | 4.086 | 3.966 | 0.750 | 0.100 |
| NPS | A | B Max | B Min | C Avg | C Min | D Max | D Min | J Min | A Tol. |
General Notes
Dimensions are in inches.
Notes
- Average of Socket Wall Thickness around periphery shall be no less than listed values. The minimum values are permitted in localized areas.
- Upper and lower values for each size are the respective maximum and minimum dimensions.
