EATON Hydraulic Hose Fittings

What are the three types of hydraulic fittings?

• Tapered Threads: These fittings have threads that taper to create a tight seal when connected. They are commonly used in hydraulic systems and are known for their reliability and leak resistance.
• Metal Seal Connectors: Metal seal connectors use metal-to-metal contact to create a secure and leak-free connection.
• Soft Seal Connectors: Soft seal connectors utilise elastomeric seals, such as O-rings or gaskets, to prevent leaks and create a seal.

What is the significance of NPT fittings in Eaton hydraulic hoses?

NPT stands for National Pipe Taper, indicating that both pipes and fittings are equipped with tapered thread profiles. These tapered threads function by creating a seal through an interference fit between the male and female threads. It is crucial to note that NPT fittings should never be fully threaded to the bottom during assembly. Instead, they should only be hand-assembled, allowing the pipe or fitting to screw in partially before reaching a point of jamming, ensuring a proper seal and preventing damage.

How are these hydraulic fittings sized?

These hydraulic fittings are available in a range of sizes, starting from -2 (dash two) and going up to -32 (dash thirty two). Their sizes are not evenly spaced, each size corresponds to the outer diameter of the tubing or hose being used. The fitting's inner diameter is directly correlated with the outer diameter of the tubing or hose, ensuring a proper and secure fit.