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Halting hydraulic leaks using full-torque nut couplings

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article image Gates’ Full-Torque Nut couplings are stronger and more durable than traditional staked-nut fittings

Gates Australia introduces its Full-Torque Nut couplings designed to eliminate problematic hydraulic leaks.

Leaking hydraulic couplings can mean costly rework or warranty claims for industrial and mobile equipment manufacturers and users alike. In the field, leaks pose environmental, safety and operational problems.

Leaking hydraulic fluid not only affects machine performance with contamination from the leaking fluid causing component failures and downtime, but also the manufacturing quality, which can result in wastage and additional cost to the enterprise.

Leaking fluids are also a high fire risk with hydraulic oil leaks accounting for more fire incidents on mobile equipment than any other fuel source. This is another capital expense and more importantly, a safety risk. All these costs can be prevented or reduced by designing or selecting hydraulic assemblies that won’t leak. 

One of the most common causes of hydraulic leaks is coupling nuts or seats that crack from over-torqueing. Any threaded connection has the potential to leak if it is not torqued properly. Traditional staked-nut fittings have always been prone to this problem. 

Gates invented and patented the Full-Torque Nut design featuring a large, smooth shoulder that evenly distributes torqueing forces for maximum torque tolerance. The Full-Torque Nut design provides up to 2,210 bar (32,000 psi) burst pressure protection; being TuffCoat plated, it provides 500 hours of protection against red rust corrosion (nearly 600% more than the SAE standard). 

Gates’ Full-Torque Nut couplings are stronger and more durable than traditional staked-nut fittings. 

Gates Full-Torque Nut technology is now available on all Gates couplings, including the MegaCrimp line for wire-braid hoses, and the GlobalSpiral line for spiral-wire hoses. 

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