Hydraulic Couplings
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Gates® - PolarSeal™ Aluminum Female SAE 45° Flare Swivel 45° Bent Tube Coupling (ACA)PolarSeal™ Aluminum Female SAE 45° Flare Swivel 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$4.65 - $14.64Availability Varies - Depends on Product Options - Gates® - PolarSeal™ Aluminum Male Inverted O-Ring 90° Bent Tube Coupling (ACA)PolarSeal™ Aluminum Male Inverted O-Ring 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. It...High quality at an affordable priceExpertly made from premium materials$10.48 - $13.80Availability Varies - Depends on Product Options
- Gates® - PolarSeal™ Aluminum Male SAE Flareless Assembly 90° Block Coupling (ACA)PolarSeal™ Aluminum Male SAE Flareless Assembly 90° Block 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$16.81 - $25.98Availability Varies - Depends on Product Options
- Gates® - PolarSeal™ Steel Compressor Female SAE Tube O-Ring Nut Swivel Coupling (ACA) 90° Bent TubePolarSeal™ Steel Compressor Female SAE Tube O-Ring Nut Swivel Coupling (ACA) 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 technology and with...High quality at an affordable priceExpertly made from premium materials$18.59 - $26.45Availability Varies - Depends on Product Options
- Gates® - PolarSeal™ Steel Compressor Female Tube O-Ring Nut Coupling (ACA) with 134a Service Port 90° BlockPolarSeal™ Steel Compressor Female Tube O-Ring Nut Coupling (ACA) with 134a Service Port 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...High quality at an affordable priceExpertly made from premium materials$35.04 - $36.85In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ Steel Female SAE 45° Flare Swivel 90° Bent Tube Coupling (ACA)PolarSeal™ Steel Female SAE 45° Flare 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 in...High quality at an affordable priceExpertly made from premium materials$14.01 - $18.54Availability Varies - Depends on Product Options
- Gates® - PolarSeal™ Steel Female SAE Tube O-Ring Nut Swivel 45° Bent Tube Coupling (ACA)PolarSeal™ Steel Female SAE Tube O-Ring Nut Swivel 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...High quality at an affordable priceExpertly made from premium materials$13.48 - $19.90In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA)PolarSeal™ Steel 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 will...High quality at an affordable priceExpertly made from premium materials$11.01 - $14.71Availability Varies - Depends on Product Options
- Gates® - PolarSeal™ Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service PortPolarSeal™ Steel 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$20.87 - $27.48Availability Varies - Depends on Product Options
- Gates® - Power Crimp™ Male Pipe (NPTF – 30° Cone Seat) CouplingPower Crimp™ Male Pipe (NPTF – 30° Cone Seat) 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$8.90 - $85.19Availability Varies - Depends on Product Options
- Gates® - Power Crimp™ PC1FS™ Steel One Non-Skive Ferrules CouplingPower Crimp™ PC1FS™ Steel One Non-Skive Ferrules 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$4.32 - $91.34Availability Varies - Depends on Product Options
- Gates® - Stainless Steel Dual Seat Female JIC 37°/SAE 45° Flare Swivel Braid CouplingStainless Steel Dual Seat Female JIC 37°/SAE 45° Flare Swivel Braid 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$32.44 - $76.41Availability Varies - Depends on Product Options
- Gates® - Stainless Steel Male Pipe (NPTF 30° Cone Seat) Braid CouplingStainless Steel Male Pipe (NPTF 30° Cone Seat) Braid 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$41.40 - $518.42Availability Varies - Depends on Product Options
- Gates® - Stainless Steel Non-Skive Ferrule Braid CouplingStainless Steel Non-Skive Ferrule Braid 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$22.43 - $218.19Availability Varies - Depends on Product Options
- Gates® - Steel Dual Seat Female JIC 37°/SAE 45° Flare Swivel 45° Bent Tube CouplingSteel Dual Seat Female JIC 37°/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...High quality at an affordable priceExpertly made from premium materials$20.08 - $37.71Availability Varies - Depends on Product Options
- Gates® - Steel Female JIC 37° Flare Swivel 90° Bent Tube CouplingSteel Female JIC 37° 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 mind. It will meet...High quality at an affordable priceExpertly made from premium materials$26.03 - $111.57Availability Varies - Depends on Product Options
- Gates® - Steel Female SAE 45° Flare Swivel 90° Bent Tube CouplingSteel Female 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 mind. It will meet...High quality at an affordable priceExpertly made from premium materials$24.67 - $55.63Availability Varies - Depends on Product Options
- Gates® - Steel Male JIC 37° Flare CouplingSteel Male JIC 37° Flare 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$15.90 - $46.84Availability Varies - Depends on Product Options
- Gates® - Steel Male Pipe (NPTF 30° Cone Seat) CouplingSteel Male Pipe (NPTF 30° Cone Seat) 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$8.79 - $143.30Availability Varies - Depends on Product Options
- Gates® - Steel Male SAE 45° Flare CouplingSteel Male SAE 45° Flare 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$16.64 - $43.95Availability Varies - Depends on Product Options
- Gates® - Straight Male to Female Brass Hydraulic Pipe Thread Adapter (SAE)Straight Male to Female Brass Hydraulic Pipe Thread Adapter (SAE) 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$1.62 - $11.13Availability Varies - Depends on Product Options
- Gates® - MegaCrimp™ Female JIC 37° Flare Swivel CouplingMegaCrimp™ Female JIC 37° Flare Swivel Coupling by Gates®. MegaCrimp™ couplings give you a leak-proof seal that’s so innovative, it’s patented. It’s what’s inside the MegaCrimp coupling that makes it perform so well, the...High quality at an affordable priceExpertly made from premium materials$7.24 - $86.32Availability Varies - Depends on Product Options
- Gates® - MegaCrimp™ Male Pipe (NPTF 30° Cone Seat) CouplingMegaCrimp™ Male Pipe (NPTF 30° Cone Seat) Coupling by Gates®. MegaCrimp™ couplings give you a leak-proof seal that’s so innovative, it’s patented. It’s what’s inside the MegaCrimp coupling that makes it perform so well, the...High quality at an affordable priceExpertly made from premium materials$6.36 - $52.55Availability Varies - Depends on Product Options
- Gates® - M3K™ MEGA3000™ 50' Nitrile Black Hydraulic HoseM3K™ MEGA3000™ 50' Nitrile Black Hydraulic Hose 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...RECOMMENDED FOR: High–pressure hydraulic oil lines. Exceeds ISO 18752 Grade B, SAE 100R17 and ISO 11237 R17 working pressure, minimum bend radius requirements and performance requirements of EN 857 1SC. M3K hose has smaller exterior dimensions and significantly tighter bend radius than other SAE 100R1 and 100R2 hose.COVER: Black, oil, abrasion and weather resistant, synthetic rubber (Nitrile and PVC), with color coded layline. Also available with unique abrasion resistant MegaTuff® or XtraTuff® covers. See Hose Stock Characteristics.$197.98 - $699.76Availability Varies - Depends on Product Options
- Gates® - MegaCrimp™ Female Japanese Inverted Flare Parallel Threads CouplingMegaCrimp™ Female Japanese Inverted Flare Parallel Threads Coupling by Gates®. MegaCrimp™ couplings give you a leak-proof seal that’s so innovative, it’s patented. It’s what’s inside the MegaCrimp coupling that makes it...High quality at an affordable priceExpertly made from premium materials$37.79 - $100.53Availability Varies - Depends on Product Options
- Gates® - MegaCrimp™ Female Quick-Lok™ High to Female JIC 37° Flare CouplingMegaCrimp™ Female Quick-Lok™ High to Female JIC 37° Flare 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...High quality at an affordable priceExpertly made from premium materials$9.16 - $17.68Availability Varies - Depends on Product Options
- Gates® - MegaCrimp™ Male Flat-Face O-Ring Bulk Head CouplingMegaCrimp™ Male Flat-Face O-Ring Bulk Head 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...High quality at an affordable priceExpertly made from premium materials$29.67 - $44.09Availability Varies - Depends on Product Options
- Gates® - Metric Bite NutsMetric Bite Nuts 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 great quality at an...High quality at an affordable priceExpertly made from premium materials$0.86 - $46.46Availability Varies - Depends on Product Options
- Gates® - PolarSeal II™ Hydraulic HosePolarSeal II™ Hydraulic Hose 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 great...High quality at an affordable priceExpertly made from premium materials$8.14 - $346.79Availability Varies - Depends on Product Options
- Gates® - Steel Dual Seat Female JIC 37°/SAE 45° Flare Swivel CouplingSteel Dual Seat Female JIC 37°/SAE 45° 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...High quality at an affordable priceExpertly made from premium materials$8.13 - $27.57Availability Varies - Depends on Product Options
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.
