🔧 This article is part of the FluidForce NZ Hydraulic Hose How-To & Troubleshooting Guides.
Explore step-by-step instructions, fitting advice, and safety best practices at our
Hydraulic Hose How-To Hub.
What causes Hydraulic Fitting Blowouts?
A hose or fitting blowout is a serious event — often caused by pressure, assembly, or system design errors.
Understanding the root cause prevents repeat failures.
Incorrect crimping – Undercut or over-crimped ferrules reduce retention strength.
Hose pull or tension – Hoses that are too short or twisted place stress on fittings.
Pressure spikes – Rapid valve closures or pump surges can exceed rated pressure.
Incompatible fittings – Mixing brands or styles can lead to poor sealing.
Improper routing – Sharp bends near the crimp area cause fatigue and separation.
Follow the manufacturer’s crimp spec every time.
Use correct hose length to allow movement without stretch.
Install protective sleeves or clamps to minimise vibration.
Inspect torque and alignment during every service.
⚠️ Safety Note: Never stand near a suspected weak hose during pressurisation — failure can occur suddenly and violently.
Need more help?
If you can’t find the information you need, or want help with your specific set up, get in touch.