Hydraulic Couplings
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Gates®PolarSeal™ Aluminum Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA)PolarSeal™ Aluminum Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...High quality at an affordable priceExpertly made from premium materials$10.49 - $21.12 - Gates®PolarSeal™ Aluminum Female SAE Tube O-Ring Nut Swivel Coupling (ACA)PolarSeal™ Aluminum Female SAE Tube O-Ring Nut Swivel Coupling (ACA) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It...High quality at an affordable priceExpertly made from premium materials$9.03 - $13.88
- Gates®PolarSeal™ Aluminum Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service PortPolarSeal™ Aluminum Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...High quality at an affordable priceExpertly made from premium materials$28.65 - $33.80
- Gates®PolarSeal™ Aluminum Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port 90° Bent TubePolarSeal™ Aluminum Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port 90° Bent Tube by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...High quality at an affordable priceExpertly made from premium materials$29.23 - $39.09
- Gates®PolarSeal™ Aluminum Hose Length Extender Coupling (ACA)PolarSeal™ Aluminum Hose Length Extender Coupling (ACA) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...High quality at an affordable priceExpertly made from premium materials$10.40 - $12.76
- Gates®PolarSeal™ Aluminum Hose Splicer Coupling (ACA) with R12 Thread Service PortPolarSeal™ Aluminum Hose Splicer Coupling (ACA) with R12 Thread Service Port by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...High quality at an affordable priceExpertly made from premium materials$17.93 - $18.85
- Gates®PolarSeal™ Aluminum Hose Splicer Coupling (ACA) with R134a Service PortPolarSeal™ Aluminum Hose Splicer Coupling (ACA) with R134a Service Port by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind....High quality at an affordable priceExpertly made from premium materials$21.43 - $24.39
- Gates®PolarSeal™ Aluminum Male Inverted O-Ring Bulkhead 90° Bent Tube Coupling (ACA)PolarSeal™ Aluminum Male Inverted O-Ring Bulkhead 90° Bent Tube Coupling (ACA) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...High quality at an affordable priceExpertly made from premium materials$30.30 - $36.32
- Gates®PolarSeal™ Aluminum Male Inverted O-Ring Coupling (ACA)PolarSeal™ Aluminum Male Inverted O-Ring Coupling (ACA) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...High quality at an affordable priceExpertly made from premium materials$11.53 - $14.46
- Gates®PolarSeal™ Aluminum Male Metric Flareless Assembly Coupling (ACA)PolarSeal™ Aluminum Male Metric Flareless Assembly Coupling (ACA) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...High quality at an affordable priceExpertly made from premium materials$21.17 - $22.86
- Gates®PolarSeal™ Aluminum Male SAE Flareless Assembly Coupling (ACA)PolarSeal™ Aluminum Male SAE Flareless Assembly Coupling (ACA) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...High quality at an affordable priceExpertly made from premium materials$17.82 - $25.36
- Gates®PolarSeal™ Aluminum Male SAE Tube O-Ring Nut 45° Bent Tube Coupling (ACA)PolarSeal™ Aluminum Male SAE Tube O-Ring Nut 45° Bent Tube Coupling (ACA) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...High quality at an affordable priceExpertly made from premium materials$9.88 - $15.67
- Gates®PolarSeal™ Aluminum Male SAE Tube O-Ring Nut 90° Bent Tube Coupling (ACA)PolarSeal™ Aluminum Male SAE Tube O-Ring Nut 90° Bent Tube Coupling (ACA) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...High quality at an affordable priceExpertly made from premium materials$10.20 - $15.38
- Gates®PolarSeal™ Aluminum Male SAE Tube O-Ring Nut Swivel Coupling (ACA)PolarSeal™ Aluminum Male SAE Tube O-Ring Nut Swivel Coupling (ACA) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It...High quality at an affordable priceExpertly made from premium materials$9.85 - $14.48
- Gates®PolarSeal™ Aluminum Male SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service PortPolarSeal™ Aluminum Male SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...High quality at an affordable priceExpertly made from premium materials$29.53 - $40.17
- Gates®PolarSeal™ Steel Compressor Female SAE Tube O-Ring Nut Swivel Coupling (ACA) 90° BlockPolarSeal™ Steel Compressor Female SAE Tube O-Ring Nut Swivel Coupling (ACA) 90° Block by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...High quality at an affordable priceExpertly made from premium materials$35.72 - $39.04
- Gates®PolarSeal™ Steel Female Braze-On Stems Coupling (ACA)PolarSeal™ Steel Female Braze-On Stems Coupling (ACA) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...High quality at an affordable priceExpertly made from premium materials$10.41 - $13.74
- Gates®PolarSeal™ Steel Female SAE 45° Flare Swivel Coupling (ACA)PolarSeal™ Steel Female SAE 45° Flare Swivel Coupling (ACA) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet...High quality at an affordable priceExpertly made from premium materials$14.66 - $17.79
- Gates®PolarSeal™ Steel Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA)PolarSeal™ Steel Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers...High quality at an affordable priceExpertly made from premium materials$14.29 - $19.26
- Gates®PolarSeal™ Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port 90° Bent TubePolarSeal™ Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port 90° Bent Tube by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...High quality at an affordable priceExpertly made from premium materials$32.71 - $35.09
- Gates®PolarSeal™ Steel Hose Splicer Coupling (ACA) with R134a Service PortPolarSeal™ Steel Hose Splicer Coupling (ACA) with R134a Service Port by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It...High quality at an affordable priceExpertly made from premium materials$31.62 - $33.89
- Gates®PolarSeal™ Steel Male Inverted O-Ring Coupling (ACA)PolarSeal™ Steel Male Inverted O-Ring Coupling (ACA) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...High quality at an affordable priceExpertly made from premium materials$32.41 - $35.82
- Gates®PolarSeal™ Steel Male SAE Tube O-Ring Nut 90° Bent Tube Coupling (ACA)PolarSeal™ Steel Male SAE Tube O-Ring Nut 90° Bent Tube Coupling (ACA) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind....High quality at an affordable priceExpertly made from premium materials$17.93 - $19.83
- Gates®PolarSeal™ Steel Male SAE Tube O-Ring Nut Swivel Coupling (ACA)PolarSeal™ Steel Male SAE Tube O-Ring Nut Swivel Coupling (ACA) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...High quality at an affordable priceExpertly made from premium materials$15.37 - $22.40
- Gates®Steel Dual Seat Female JIC 37°/SAE 45° Flare Swivel 90° Bent Tube CouplingSteel Dual Seat Female JIC 37°/SAE 45° Flare Swivel 90° Bent Tube Coupling by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...High quality at an affordable priceExpertly made from premium materials$25.17 - $43.08
- Gates®Steel Dual Seat Female JIC 37°/SAE 45° Flare Swivel Coupling Type A1Steel Dual Seat Female JIC 37°/SAE 45° Flare Swivel Coupling Type A1 by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It...High quality at an affordable priceExpertly made from premium materials$11.46 - $25.58
- Gates®Steel Female JIC 37° Flare Swivel CouplingSteel Female JIC 37° Flare Swivel Coupling by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...High quality at an affordable priceExpertly made from premium materials$12.07 - $172.54
- Gates®Steel Female SAE 45° Flare Swivel 45° Bent Tube CouplingSteel Female SAE 45° Flare Swivel 45° Bent Tube Coupling by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet...High quality at an affordable priceExpertly made from premium materials$34.45 - $51.88
- Gates®Steel Male SAE 45° Flare Inverted Swivel CouplingSteel Male SAE 45° Flare Inverted Swivel Coupling by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...High quality at an affordable priceExpertly made from premium materials$17.95 - $38.58
- Gates®Brass Air Brake Union Tee CouplingBrass Air Brake Union Tee Coupling by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...High quality at an affordable priceExpertly made from premium materials$17.13 - $86.07
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.
