Hydraulic Couplings
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Gates® - Female JIC 37° Flare Swivel to Male Pipe NPTF Adapter$10.71 - $56.43 -
Gates® - Female O-Ring Boss to Male Pipe NPTF Adapter$6.28 - $19.69 -
Gates® - Female Pipe NPTF Tee Adapter$16.95 - $34.45 -
Gates® - Female Pipe NPTF to Female Pipe Swivel NPSM Adapter$5.57 - $20.07 -

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Gates® - G945 Series™ Female Poppet Valve to Female Pipe$34.70 - $105.62 -
Gates® - G945 Series™ Male Poppet Valve to Female Pipe$20.56 - $50.27 -
Gates® - G949 Series™ Male Flush Face Valve to Female Pipe$44.91 - $162.42 -
Gates® - G951 Series™ Brass Female Cast Iron Wing Nut$114.41 - $316.08 -

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Gates® - G956 Series™ Female Poppet Valve to Female Pipe$45.92 - $120.74 -
Gates® - G956 Series™ Male Poppet Valve to Female Pipe$25.82 - $49.85 -

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Gates® - GlobalSpiral™ Caterpillar Style O-Ring Flange Coupling$64.89 - $131.33 -

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Gates® - GlobalSpiral™ Code 61 O-Ring Flange 90° Bent Tube Coupling$48.58 - $109.12 -
Gates® - GlobalSpiral™ Code 61 O-Ring Flange Coupling$41.43 - $81.94 -

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Gates® - GlobalSpiral™ Female Flat-Face O-Ring Swivel Coupling$21.81 - $96.41 -

Couplings are the essential parts of any hydraulic system. They are used to connect hoses and pipes to the other elements of the system including reservoirs, cylinders, valves, and pumps. Designed according to strict requirements, couplings are available in many types and materials compatible with the fluid circulating in the system. It is vital, hence, to pick the most appropriate class of fittings to get smooth running, top performance, and safety. Common materials include brass, stainless steel, aluminum, plastic, and copper. For example, plastic couplings offer good resistance to corrosion, but they are unreliable in high-pressure systems.
The choice of hydraulic couplings depends on the pressure rating, chemical compatibility with the fluid, operating temperature, and sealing capacity. Crimp fittings, coupling barbs, compression fittings, and quick disconnect couplers are the most common types used in hydraulic systems. Typically, they are available in many sizes and shapes to fit various designs. In our online catalog, you can find a wide assortment of these and other couplings including inverted flares, mini-barbed tubes, and reusable models. We also offer a broad selection of adapters to ensure flexibility and efficiency. The costs are reasonable, and the quality is ensured by leading companies in the industry.































