W31-48-48 Anchor Fluid Power | Deep Socket Weld Pipe 4-Bolt Hydraulic Flange, O-Ring Face | 3" Code 61 Flange x 3" Socket Weld | Carbon Steel
W31-48-48 Anchor Fluid Power | Deep Socket Weld Pipe 4-Bolt Hydraulic Flange, O-Ring Face | 3" Code 61 Flange x 3" Socket Weld | Carbon Steel
W31-48-48 Anchor Fluid Power | Deep Socket Weld Pipe 4-Bolt Hydraulic Flange, O-Ring Face | 3" Code 61 Flange x 3" Socket Weld | Carbon Steel
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W31-48-48 by Anchor Fluid Power | Deep Socket Weld Pipe 4-Bolt Hydraulic Flange, O-Ring Face | 3" Code 61 Flange x 3" Socket Weld | Carbon Steel

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SAE J518 Code 61 & Code 62

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?
Standard

Carbon steel, SAE J518 4-bolt flange pattern

Sizes

Code 61: 1/2" to 3"; Code 62: 3/4" to 2"

Face

O-ring groove or flat face

Mounting Kit

Suffix U: O-ring + 4 socket head cap screws

2

Which sizes are available?
Deep Socket Weld Pipe 4-Bolt Flanges dimension drawing
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?
PDF

Anchor Catalog Page: Deep Socket Weld Pipe 4-Bolt Flanges

Dimension tables by part number with mounting hardware.

i
Dimensions are from Anchor Fluid Power and are subject to change without notice.

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:

Shape:

Straight

Ends Configuration:
  • 3in Code 61 Flange
  • 3in Socket Weld
Material(s):
  • Carbon Steel

Anchor Fluid Power

Anchor Fluid Power is a Cincinnati, Ohio–based manufacturer of hydraulic connection components, with an additional stocking facility in Houston, Texas. The ISO 9001 and ISO 45001 registered company produces flanges, couplings, valves, and fittings, along with custom components built to specification. Anchor products are used in mobile and stationary hydraulic equipment across a wide range of industries.

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