Hydraulic Flange Adapters

SAE J518 Code 61 and Code 62 4-Bolt Flanges

There are two types of J518 SAE Split Flanges, code 61 and code 62. These flanges are non-interchangeable. The code 61 or standard split flange, is designed for hydraulic systems which operate at maximum pressures of 3,000 PSI. The code 62 or high pressure split flange, is designed for hydraulic systems which operate at 6,000 PSI maximums regardless of size.

This connection is commonly used world wide to connect larger sizes of hose and tubing (3/4 to 3) in fluid power systems.

An o-ring, inserted into a ring groove in the flange head seals on a smooth face female port, and is held in place by two clamp halves (or a one piece clamp) which are held tight by four bolts located in a rectangular pattern.

J518 is interchangeable with ISO 6141, DIN 20066 and JIS B 8363, except for the bolt sizes.

Simply click on the picture of the fitting to see a table of prices and sizes available.

Click here for Flange Dimensional Data.


Hydraulic Flange Adapters Code 61 - 3,000 PSI
Hydraulic Flange Adapters Code 62 - 6,000 PSI
Hydraulic Flange Adapters Code 61 - 3,000 PSI

Hydraulic Flange Adapters Code 62 - 6,000 PSI

Stainless Steel Hydraulic Flange Adapters


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