


W25-24 by Anchor Fluid Power | Butt Weld 4-Bolt Hydraulic Flange, Flat Face | 1-1/2" Code 61 Flange x 1-1/2" Weld End | Schedule 160 Pipe | Carbon Steel
Butt Weld 4-Bolt Flanges, Schedule 40, 80 and 160
Carbon steel SAE J518 4-bolt flanges with a beveled end that is butt welded to pipe.
1
What are the key specifications?
Carbon steel
SAE J518 4-bolt flange pattern
Code 61: 3/4" to 3"
O-ring groove or flat face
Suffix U: O-ring + 4 socket head cap screws
Schedule 40, Schedule 80, Schedule 160
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 Schedule 40 | |||||||||||||||||
| 3/4" | W35-12 | W35-12U | W34-12 | 1.970 | 2.560 | 0.875 | 1.875 | 1.420 | 0.710 | 1.250 | 0.744 | 1.050 | 0.846 | 0.406 | 3/8-16 | 2-214 | 3/8-16 x 1.50 |
| 1" | W35-16 | W35-16U | W34-16 | 2.170 | 2.750 | 1.031 | 2.062 | 1.500 | 0.710 | 1.560 | 0.959 | 1.315 | 1.051 | 0.406 | 3/8-16 | 2-219 | 3/8-16 x 1.50 |
| 1-1/4" | W35-20 | W35-20U | W34-20 | 2.680 | 3.120 | 1.188 | 2.312 | 1.610 | 0.830 | 1.750 | 1.280 | 1.660 | 1.382 | 0.469 | 7/16-14 | 2-222 | 7/16-14 x 1.75 |
| 1-1/2" | W35-24 | W35-24U | W34-24 | 3.070 | 3.660 | 1.406 | 2.750 | 1.730 | 0.980 | 2.115 | 1.502 | 1.900 | 1.612 | 0.531 | 1/2-13 | 2-225 | 1/2-13 x 1.75 |
| 2" | W35-32 | W35-32U | W34-32 | 3.540 | 4.000 | 1.688 | 3.062 | 1.770 | 0.980 | 2.490 | 1.941 | 2.375 | 2.069 | 0.531 | 1/2-13 | 2-228 | 1/2-13 x 1.75 |
| 2-1/2" | W35-40 | W35-40U | W34-40 | 4.090 | 4.490 | 2.000 | 3.500 | 1.970 | 0.980 | 2.995 | 2.325 | 2.875 | 2.471 | 0.531 | 1/2-13 | 2-232 | 1/2-13 x 1.75 |
| 3" | W35-48 | W35-48U | W34-48 | 4.880 | 5.280 | 2.438 | 4.188 | 1.970 | 1.060 | 3.615 | 2.902 | 3.500 | 3.070 | 0.656 | 5/8-11 | 2-237 | 5/8-11 x 2.00 |
| Code 61 Schedule 80 | |||||||||||||||||
| 3/4" | W24-12 | W24-12U | W23-12 | 1.970 | 2.560 | 0.875 | 1.875 | 1.420 | 0.710 | 1.250 | 0.744 | 1.050 | — | 0.406 | 3/8-16 | 2-214 | 3/8-16 x 1.50 |
| 1" | W24-16 | W24-16U | W23-16 | 2.170 | 2.750 | 1.031 | 2.062 | 1.500 | 0.710 | 1.560 | 0.959 | 1.315 | — | 0.406 | 3/8-16 | 2-219 | 3/8-16 x 1.50 |
| 1-1/4" | W24-20 | W24-20U | W23-20 | 2.680 | 3.120 | 1.188 | 2.312 | 1.610 | 0.830 | 1.750 | 1.280 | 1.660 | — | 0.469 | 7/16-14 | 2-222 | 7/16-14 x 1.75 |
| 1-1/2" | W24-24 | W24-24U | W23-24 | 3.070 | 3.660 | 1.406 | 2.750 | 1.730 | 0.980 | 2.115 | 1.502 | 1.900 | — | 0.531 | 1/2-13 | 2-225 | 1/2-13 x 1.75 |
| 2" | W24-32 | W24-32U | W23-32 | 3.540 | 4.000 | 1.688 | 3.062 | 1.770 | 0.980 | 2.490 | 1.941 | 2.375 | — | 0.531 | 1/2-13 | 2-228 | 1/2-13 x 1.75 |
| 2-1/2" | W24-40 | W24-40U | W23-40 | 4.090 | 4.490 | 2.000 | 3.500 | 1.970 | 0.980 | 2.995 | 2.325 | 2.875 | — | 0.531 | 1/2-13 | 2-232 | 1/2-13 x 1.75 |
| 3" | W24-48 | W24-48U | W23-48 | 4.880 | 5.280 | 2.438 | 4.188 | 1.970 | 1.060 | 3.615 | 2.902 | 3.500 | — | 0.656 | 5/8-11 | 2-237 | 5/8-11 x 2.00 |
| Code 61 Schedule 160 | |||||||||||||||||
| 3/4" | W27-12 | W27-12U | W25-12 | 1.970 | 2.560 | 0.875 | 1.875 | 1.420 | 0.710 | 1.250 | 0.614 | 1.050 | — | 0.406 | 3/8-16 | 2-214 | 3/8-16 x 1.50 |
| 1" | W27-16 | W27-16U | W25-16 | 2.170 | 2.750 | 1.031 | 2.062 | 1.500 | 0.710 | 1.560 | 0.817 | 1.315 | — | 0.406 | 3/8-16 | 2-219 | 3/8-16 x 1.50 |
| 1-1/4" | W27-20 | W27-20U | W25-20 | 2.680 | 3.120 | 1.188 | 2.132 | 1.610 | 0.830 | 1.750 | 1.162 | 1.660 | — | 0.469 | 7/16-14 | 2-222 | 7/16-14 x 1.75 |
| 1-1/2" | W27-24 | W27-24U | W25-24 | 3.070 | 3.660 | 1.406 | 2.750 | 1.730 | 0.980 | 2.115 | 1.340 | 1.900 | — | 0.531 | 1/2-13 | 2-225 | 1/2-13 x 1.75 |
| 2" | W27-32 | W27-32U | W25-32 | 3.540 | 4.000 | 1.688 | 3.062 | 1.770 | 0.980 | 2.490 | 1.689 | 2.375 | — | 0.531 | 1/2-13 | 2-228 | 1/2-13 x 1.75 |
| 2-1/2" | W27-40 | W27-40U | W25-40 | 4.090 | 4.490 | 2.000 | 3.500 | 1.970 | 0.980 | 2.995 | 2.127 | 2.875 | — | 0.531 | 1/2-13 | 2-232 | 1/2-13 x 1.75 |
| 3" | W27-48 | W27-48U | W25-48 | 4.880 | 5.280 | 2.438 | 4.188 | 1.970 | 1.060 | 3.615 | 2.626 | 3.500 | — | 0.656 | 5/8-11 | 2-237 | 5/8-11 x 2.00 |
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: W24-24 = Code 61 butt weld 4-bolt flange, O-ring face, 1-1/2" pad.
| Code | Meaning |
|---|---|
| Series | |
| W34 | Code 61 Schedule 40 Flat Face |
| W35 | Code 61 Schedule 40 O-Ring Face |
| W23 | Code 61 Schedule 80 Flat Face |
| W24 | Code 61 Schedule 80 O-Ring Face |
| W25 | Code 61 Schedule 160 Flat Face |
| W27 | Code 61 Schedule 160 O-Ring Face |
| Sizes | |
| 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: Butt Weld 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

