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78 Series 73 Series API HOSE FITTINGS
77 Series Parker hose fittings
SS316 Stainless Steel 43 series Hose Fittings,Metric adapters,Verious types for your option.
Adapter -Hydraulic Fittings- HainarHydraulics
SAE adapters ,large stocks

we have a large inventory of Parker 43/71/56 series ＆ HY series compatiable Hydraulic Crimp Hose Fittings, Contact us Now!

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HAINAR Hydraulics CO., Ltd. commenced manufacturing hydraulics hose fittings, adapters and hydraulic hose assembly in 2007, Our product range and main product line is for High-pressure hydraulic fittings and hose assembly.

After 14 years develop, HAINAR Hydraulics got a good reputation in domestic customer and oversea customers. We supply the hydraulic high-pressure hose assembly and fittings to machinery factory in domestic market. Such like injection molding machine, Construction machinery, mining machinery and drilling machine Fishing Equipment for ship etc. Now we have 40% of our hydraulic hose fittings, adapters and hydraulic quick couplings are exported to Western Europe, Eastern Europe, North American, South American and South East Asia.

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  • How Do You Spot Early Signs of Leaks in Hydraulic Fittings

      Spotting leaks early in hydraulic fittings saves time and prevents bigger problems. Watch for these signs: Wet spots or fluid pooling near hydraulic hose fittings or stainless steel fittings Discoloration or stains on hydraulic pipe fittings Hissing, whining, or squealing noises from Parker hose fittings Unusual drops in system pressure Needing to refill fluid more often If anyone finds any of these signs, they should shut off the system and call a technician right away. Key Takeaways Spot leaks early by checking for wet spots, stains, unusual noises, and pressure drops around hyd...

  • Unveiling Double Sleeve Fittings: The Safe Choice for Hydraulic Connections

    Double Sleeve Tube Fittings Origin • When it appeared: Mid-20th century, developed by Swagelok in the 1940s–1950s. • Background: At that time, piping systems in petrochemical, military, and aerospace industries mostly used welding or threaded connections. These methods were prone to leakage under high pressure, high temperature, and vibration conditions, and were difficult to install and maintain. • Innovation: The double ferrule fitting uses a front ferrule for sealing + back ferrule for gripping design, allowing a strong metal-to-metal seal without welding. It can be repeatedly assembled ...

  • Why does choosing the correct hydraulic fitting ensure system safety

    Selecting the proper hydraulic fittings is essential for keeping workers and equipment safe. Many accidents are caused by leaks or bursts from hydraulic fittings that do not meet system requirements. Industry data reveals that nearly 40% of hydraulic system failures are related to hose fittings. Stainless steel hydraulic fittings, particularly those produced by a reputable hydraulic fittings manufacturer, provide superior protection. When it comes to hydraulic fittings for construction machinery, choosing hydraulic fittings compatible with Parker can help avoid expensive downtime and reduc...

  • What risks do construction machines face when hydraulic fittings use the wrong joint seal

    Construction machines depend on hydraulic fittings to keep pressure steady and systems safe. When workers install the wrong joint seal, oil can leak out—even a small drip adds up to 16 liters lost each year. This fluid loss increases costs, promotes corrosion, and weakens pipe fittings. Operators might face safety hazards like slippery spills or even hose whipping from faulty hydraulic hose fittings. Stainless steel fittings and rubber hose connections also suffer, as corrosion can cut burst resistance by 40%. These problems lead to more breakdowns and expensive repairs. Key Takeaways Usi...

  • Pressure Testing Fittings: The Unsung Heroes of System Safety and Precision

    In industrial operations, where even the smallest leak or pressure fluctuation can lead to costly downtime or safety hazards, pressure testing fittings stand as critical components ensuring reliability. These specialized connectors are far more than simple links—they are the guardians of accurate measurements, system integrity, and operational safety across industries ranging from manufacturing to oil and gas. What Are Pressure Testing Fittings? Pressure testing fittings are engineered connectors designed to create a secure, leak-tight bridge between testing instruments (such as pressure ga...

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