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Got metric hydraulic hose fittings you need to install? Here’s how you can do it – and it’s just as easy as installing SAE hose assemblies:

swaged hose fitting
swaged hose fitting
45° Metric Female 24° Cone O-ring L.T. 20441
45° Metric Female 24° Cone O-ring L.T. 20441

Installation steps of metric hydraulic hose fittings

  1. Get your hydraulic hose cut to the right length. You’re going to want to use a hydraulic hose cutter for this – one with a steel blade is best.
  2. Cut left any burrs or rough edges? Grab a deburring tool and smooth them out.
  3. Next, you’ll need to look at your manufacturer’s literature to find the hose insertion length. Once you’ve got that, mark it on your hose. Now you’re ready to insert the fitting into the end of the hose, just make sure the depth matches up with your mark.
  4. All that’s left is to crimp the fitting onto the hose. You can use a hydraulic crimper or a hydraulic press for this. Don’t forget to measure the crimp OD afterward to make sure it matches the manufacturer’s specification.
90° metic female hose fitting 24° cone o-ring L.T. ISO 12151-2、DIN3865
90° metic female hose fitting 24° cone o-ring L.T. ISO 12151-2、DIN3865

Tips to make the installation smoother

  • Make sure you’ve got the right size and type of fitting for your application. It’s also important to make sure your thread form is the right one. Sometimes, different thread standards might seem like they fit, but you could end up with a poor fit and leaks.
  • Grab the right tools for the job. Metric fittings need metric wrenches. Adjustable wrenches could do in a pinch, but be careful – you don’t want to strip the nut.
  • Tighten the fitting until it’s snug, but don’t go overboard. Over-tightening can damage the threads or the seal.
  • After you’ve got everything installed, run a pressure test. This will help you make sure your fitting is sealed and secure.

Avoid these common mistakes

Remember, everyone makes mistakes. But here are a few common ones you can avoid:

  • Using the wrong size or type of fitting.
  • Cutting the hose at an angle or with a dull blade.
  • Over-tightening the fitting.
  • Using the wrong type of thread sealant or using it when you shouldn’t.
  • Skipping the pressure test after everything’s installed.
  • Forgetting to install necessary O-rings.

videos about metric hydraulic hose fittings

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