W61-12-12 Anchor Fluid Power | Flat Socket Weld Pipe 4-Bolt Hydraulic Flange, Flat Face | 3/4" Code 61 Flange x 3/4" Socket Weld | Carbon Steel
W61-12-12 Anchor Fluid Power | Flat Socket Weld Pipe 4-Bolt Hydraulic Flange, Flat Face | 3/4" Code 61 Flange x 3/4" Socket Weld | Carbon Steel
W61-12-12 Anchor Fluid Power | Flat Socket Weld Pipe 4-Bolt Hydraulic Flange, Flat Face | 3/4" Code 61 Flange x 3/4" Socket Weld | Carbon Steel
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W61-12-12 by Anchor Fluid Power | Flat Socket Weld Pipe 4-Bolt Hydraulic Flange, Flat Face | 3/4" Code 61 Flange x 3/4" Socket Weld | Carbon Steel

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SAE J518 Code 61 & Code 62

Flat Socket Weld Pipe 4-Bolt Flanges

Carbon steel SAE J518 4-bolt flanges with a socket that pipe is inserted into and welded.

1

What are the key specifications?
Material

Carbon steel

Standard

SAE J518 4-bolt flange pattern

Sizes

Code 61: 1/2" to 5"; Code 62: 1/2" to 3"

Face

O-ring groove or flat face

Mounting Kit

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

Large Sizes

3" to 5" Code 61 rated 500 PSI

2

Which sizes are available?
Flat 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 UNC-2B Kit O-Ring Kit Screws (4)
Code 61
1/2" W4-8-8 W4-8-8U W61-8-8 1.813 2.125 0.688 1.500 0.750 0.560 1.000 0.502 0.855 0.344 5/16-18 2-210 5/16-18 x 1.50
3/4" W4-12-12 W4-12-12U W61-12-12 2.063 2.563 0.875 1.875 0.750 0.560 1.250 0.752 1.062 0.406 3/8-16 2-214 3/8-16 x 1.50
1" W4-16-16 W4-16-16U W61-16-16 2.313 2.750 1.031 2.063 0.880 0.630 1.560 1.002 1.328 0.406 3/8-16 2-219 3/8-16 x 1.75
1-1/4" W4-20-20 W4-20-20U W61-20-20 2.875 3.125 1.188 2.313 0.940 0.690 1.750 1.252 1.672 0.469 7/16-14 2-222 7/16-14 x 1.75
1-1/2" W4-24-24 W4-24-24U W61-24-24 3.250 3.688 1.406 2.750 1.190 0.750 2.115 1.502 1.922 0.531 1/2-13 2-225 1/2-13 x 2.25
2" W4-32-32 W4-32-32U W61-32-32 3.813 4.000 1.688 3.063 1.380 0.875 2.490 2.002 2.406 0.531 1/2-13 2-228 1/2-13 x 2.50
2-1/2" W4-40-40 W4-40-40U W61-40-40 4.281 4.500 2.000 3.500 1.750 1.000 2.995 2.502 2.906 0.531 1/2-13 2-232 1/2-13 x 2.75
3" W4-48-48 W4-48-48U W61-48-48 5.156 5.313 2.438 4.188 2.120 1.250 3.615 3.002 3.547 0.656 5/8-11 2-237 5/8-11 x 3.50
Code 61 500 PSI
3" W72-48-48 W72-48-48U W91-48-48 5.120 5.310 2.438 4.188 1.380 1.120 3.615 3.002 3.547 0.656 5/8-11 2-237 5/8-11 x 2.50
3-1/2" W72-56-56 W72-56-56U W91-56-56 5.500 6.000 2.750 4.750 1.440 1.190 4.095 3.502 4.047 0.656 5/8-11 2-241 5/8-11 x 2.75
4" W72-64-64 W72-64-64U W91-64-64 6.000 6.380 3.062 5.125 1.500 1.250 4.595 4.002 4.578 0.656 5/8-11 2-245 5/8-11 x 2.75
5" W72-80-80 W72-80-80U W91-80-80 7.120 7.250 3.625 6.000 1.750 1.380 5.595 5.002 5.641 0.656 5/8-11 2-253 5/8-11 x 3.00
Code 62
1/2" W59-8-8 W59-8-8U W60-8-8 1.940 2.300 0.718 1.594 1.250 0.560 1.000 0.502 0.855 0.344 5/16-18 2-210 5/16-18 x 2.00
3/4" W59-12-12 W59-12-12U W60-12-12 2.500 2.950 0.937 2.000 1.250 0.560 1.250 0.752 1.062 0.406 3/8-16 2-214 3/8-16 x 2.00
1" W59-16-16 W59-16-16U W60-16-16 2.750 3.190 1.093 2.250 1.500 0.630 1.560 1.002 1.328 0.492 7/16-14 2-219 7/16-14 x 2.50
1-1/4" W59-20-20 W59-20-20U W60-20-20 3.060 3.750 1.250 2.625 1.500 0.690 1.750 1.252 1.672 0.531 1/2-13 2-222 1/2-13 x 2.50
1-1/2" W59-24-24 W59-24-24U W60-24-24 3.750 4.440 1.437 3.125 1.750 0.750 2.115 1.502 1.922 0.656 5/8-11 2-225 5/8-11 x 3.00
2" W59-32-32 W59-32-32U W60-32-32 4.500 5.250 1.750 3.812 1.750 0.875 2.490 2.002 2.406 0.781 3/4-10 2-228 3/4-10 x 3.00
2-1/2" W59-40-40 W59-40-40U W60-40-40 5.870 6.870 2.312 4.875 2.060 1.000 2.995 2.502 2.906 0.906 7/8-9 2-232 7/8-9 x 3.50
3" W59-48-48 W59-48-48U W60-48-48 7.000 8.500 2.812 6.000 2.620 1.250 3.615 3.002 3.547 1.190 1-1/8-7 2-237 1 1/8-7 x 4.50

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: W91-64-64 = Code 61 flat socket weld pipe 4-bolt flange, flat face, 4" pad.

Code Meaning
Series
W61 Code 61 Flat Face
W4 Code 61 O-Ring Face
W91 Code 61 500 PSI Flat Face
W72 Code 61 500 PSI O-Ring Face
W60 Code 62 Flat Face
W59 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: Flat 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:
  • 3/4in Code 61 Flange
  • 3/4in 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.

Explore Anchor Fluid Power

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