W3-8-8 by Anchor Fluid Power | Deep Socket Weld Pipe 4-Bolt Hydraulic Flange, Flat Face | 1/2" Code 61 Flange x 1/2" Socket Weld | Carbon Steel
Deep Socket Weld Pipe 4-Bolt Flanges
Carbon steel SAE J518 4-bolt flanges with a deep socket that pipe is inserted into and welded.
1
What are the key specifications?
Carbon steel, SAE J518 4-bolt flange pattern
Code 61: 1/2" to 3"; Code 62: 3/4" to 2"
O-ring groove or flat face
Suffix U: O-ring + 4 socket head cap screws
2
Which sizes are available?
| Pipe / Pad Size | O-Ring Face | O-Ring + Kit | Flat Face | A (in) | B (in) | C (in) | D (in) | E (in) | F (in) | G (in) | H (in) | J (in) | K (in) | L (in) | M UNC-2B | Kit O-Ring | Kit Screws (4) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Code 61 | |||||||||||||||||
| 1/2" | W31-8-8 | W31-8-8U | W3-8-8 | 1.810 | 2.130 | 0.688 | 1.500 | 1.420 | 0.630 | 1.000 | 0.502 | 0.855 | 0.750 | 0.344 | 5/16-18 | 2-210 | 5/16-18 x 1.25 |
| 3/4" | W31-12-12 | W31-12-12U | W3-12-12 | 1.970 | 2.560 | 0.875 | 1.875 | 1.420 | 0.710 | 1.250 | 0.752 | 1.062 | 0.750 | 0.406 | 3/8-16 | 2-214 | 3/8-16 x 1.50 |
| 1" | W31-16-16 | W31-16-16U | W3-16-16 | 2.170 | 2.750 | 1.031 | 2.062 | 1.500 | 0.710 | 1.560 | 1.002 | 1.328 | 0.750 | 0.406 | 3/8-16 | 2-219 | 3/8-16 x 1.50 |
| 1-1/4" | W31-20-20 | W31-20-20U | W3-20-20 | 2.680 | 3.120 | 1.188 | 2.312 | 1.610 | 0.830 | 1.750 | 1.252 | 1.672 | 0.870 | 0.469 | 7/16-14 | 2-222 | 7/16-14 x 1.75 |
| 1-1/2" | W31-24-24 | W31-24-24U | W3-24-24 | 3.070 | 3.660 | 1.406 | 2.750 | 1.770 | 0.980 | 2.115 | 1.502 | 1.922 | 0.940 | 0.531 | 1/2-13 | 2-225 | 1/2-13 x 1.75 |
| 2" | W31-32-32 | W31-32-32U | W3-32-32 | 3.540 | 4.000 | 1.688 | 3.062 | 1.770 | 0.980 | 2.490 | 2.002 | 2.406 | 1.020 | 0.531 | 1/2-13 | 2-228 | 1/2-13 x 1.75 |
| 2-1/2" | W31-40-40 | W31-40-40U | W3-40-40 | 4.090 | 4.490 | 2.000 | 3.500 | 1.970 | 0.980 | 2.995 | 2.502 | 2.908 | 1.180 | 0.531 | 1/2-13 | 2-232 | 1/2-13 x 1.75 |
| 3" | W31-48-48 | W31-48-48U | W3-48-48 | 4.880 | 5.280 | 2.438 | 4.188 | 1.970 | 1.060 | 3.615 | 3.002 | 3.547 | 1.340 | 0.656 | 5/8-11 | 2-237 | 5/8-11 x 2.00 |
| Code 62 | |||||||||||||||||
| 3/4" | W81-12-12 | W81-12-12U | W80-12-12 | 2.170 | 2.800 | 0.937 | 2.000 | 1.380 | 0.830 | 1.250 | 0.752 | 1.062 | 0.870 | 0.406 | 3/8-16 | 2-214 | 3/8-16 x 1.50 |
| 1" | W81-16-16 | W81-16-16U | W80-16-16 | 2.560 | 3.190 | 1.093 | 2.250 | 1.650 | 0.980 | 1.560 | 1.002 | 1.328 | 0.870 | 0.492 | 7/16-14 | 2-219 | 7/16-14 x 1.75 |
| 1-1/4" | W81-20-20 | W81-20-20U | W80-20-20 | 3.070 | 3.750 | 1.250 | 2.625 | 1.770 | 1.060 | 1.750 | 1.252 | 1.672 | 0.980 | 0.531 | 1/2-13 | 2-222 | 1/2-13 x 1.75 |
| 1-1/2" | W81-24-24 | W81-24-24U | W80-24-24 | 3.700 | 4.410 | 1.437 | 3.125 | 1.970 | 1.180 | 2.115 | 1.502 | 1.922 | 1.100 | 0.656 | 5/8-11 | 2-225 | 5/8-11 x 2.25 |
| 2" | W81-32-32 | W81-32-32U | W80-32-32 | 4.500 | 5.280 | 1.750 | 3.812 | 2.560 | 1.460 | 2.490 | 2.002 | 2.406 | 0.940 | 0.781 | 3/4-10 | 2-228 | 3/4-10 x 2.75 |
Dimensions in inches; letters as on the drawing. O-ring face (Fig. 1) and flat face (Fig. 2) share dimensions except the O-ring groove. “+ Kit” part numbers (suffix U) include the mounting kit: 1 O-ring and 4 socket head cap screws.
3
How do I read the part number?
Example: W31-40-40 = Code 61 deep socket weld pipe 4-bolt flange, O-ring face, 2-1/2" pad.
| Code | Meaning |
|---|---|
| Series | |
| W3 | Code 61 Flat Face |
| W31 | Code 61 O-Ring Face |
| W80 | Code 62 Flat Face |
| W81 | Code 62 O-Ring Face |
| Sizes | |
| First dash number | in 1/16" |
| Second dash number | Pad (flange) size in 1/16" |
| U suffix | Mounting kit included: O-ring + 4 SHCS |
4
Where can I find product documents?
Anchor Catalog Page: Deep Socket Weld Pipe 4-Bolt Flanges
Dimension tables by part number with mounting hardware.
How is this product sold?
Each. Part numbers ending in U include the mounting kit (1 O-ring, 4 socket head cap screws); others are the flange only.
Additional Product Data:
Straight
