As part of our DOM Group, BJ Hydraulics understand that safety and optimal performance are paramount in your hydraulic operations. That's why we want to emphasize the critical importance of matching Ryco hoses with Ryco fittings. While it might seem straightforward, the reality is that not all hoses and fittings, even those meeting SAE (Society of Automotive Engineers) standards, are created equal.

You might be aware that SAE certifications focus on basic parameters like temperature, pressure, and coupling attachment mechanisms. However, these standards allow for a certain degree of "tolerance," which, while acceptable, product dimensions may not guarantee that the other SAE dimensions produce the minimum safety requirements. This may lead to failure and loss of???.

Ryco takes a significantly more stringent approach. Their manufacturing processes, particularly the use of mandrels in hose formation, demonstrate this commitment to quality. With higher standards than the minimum required, Ryco hydraulic components matched correctly with other Ryco components provide the safest Hydraulic solution.

The Mandrel Difference:

As you may know, a mandrel is a shaped bar used to maintain the internal shape of a hose during curing. Ryco’s use of mandrels ensures a consistent internal diameter, preventing collapses and creases. This level of precision is crucial for maintaining optimal flow and pressure integrity.

Cheaper, non-mandrel-formed hoses, while meeting minimum SAE tolerances, often have inconsistent internal diameters, significantly increasing the risk of coupling failures. As highlighted by other manufacturers:

“WARNING: DO NOT MIX COMPONENTS FROM DIFFERENT SUPPLIERS. Tractor hydraulic systems operate at twenty times the pressure of certified garage air receivers. POOR WORK PRACTICE COULD RESULT IN SEVERE INJURY OR DEATH.” (Bareco)
“MATCHED-TESTING MATTERS. Taipan has the ability to ensure our matched hose systems meet or exceed industry manufacturing standards.” (Taipan)

These warnings underscore the potential dangers of mixing components from different suppliers.

The Truth About Tolerances:

A common misconception is that any coupling matching an SAE-certified hose will work with all SAE-certified hoses, and vice versa. However, as Ryco clearly states in their technical manual:

“SAE J517 HOSE FROM ONE MANUFACTURER IS USUALLY NOT COMPATIBLE WITH SAE J516 CONNECTORS SUPPLIED BY ANOTHER MANUFACTURER. IT IS THE RESPONSIBILITY OF THE (HOSE ASSEMBLY) FABRICATOR TO CONSULT THE MANUFACTURER'S WRITTEN INSTRUCTIONS OR THE MANUFACTURERS DIRECTLY BEFORE INTERMIXING HOSE AND CONNECTORS FROM TWO MANUFACTURERS”. (Ryco)

This statement emphasizes that even within SAE standards, compatibility is not guaranteed.

In essence:

Ryco's tighter tolerances and mandrel-forming process ensure superior performance and safety.
Mixing hose and fitting brands, even within SAE standards, significantly increases the risk of failure.
Using matched Ryco hoses and fittings is the safest and most reliable approach.
With Ryco’s commitment to the highest safety factor in the Hydraulic industry, it means you get a product that always exceeds SAE standards.

At BJ Hydraulics, we strongly recommend adhering to Ryco's guidelines to ensure the longevity and safety of your hydraulic systems. We're here to assist you with any questions and ensure you have the correct matched Ryco components for your needs.

Please don't hesitate to reach out if you require further information or assistance.

BJ Hydraulics highlights this Hydraulic Safety Risk