Douce-Hydro is committed to providing you with products of impeccable quality, thanks to a rigorous and comprehensive qualified control system. Our aim: to guarantee you reliable, long-lasting hydraulic solutions that meet the most exacting requirements.
Our strengths in quality control:
- Dimensional and geometric control :
- Check all component dimensions using precise measuring tools;
- Check component geometry to ensure optimum operation.
- Checking welds :
- Visual inspection of welds by certified technicians;
- Dye penetrant inspection or radiography to guarantee weld quality.
- Control of surface treatments :
- Checking the thickness and adhesion of surface treatments;
- Controlling the corrosion resistance of surface treatments ;
- Assessment of salt spray corrosion performance (600l capacity).
Hydraulic and functional tests :
- Low-pressure static and dynamic pressure testing to guarantee component resistance;
- Fatigue test to simulate real-life conditions;
- Function test to check that products are working properly.
- Strict safety procedures:
- Compliance with current standards and regulations;
- Use of test equipment.
Thanks to these procedures and this traceability system, we can guarantee :
- Safe, reliable products that meet the highest standards;
- Complete traceability of your products, from raw material to finished product;
- Peace of mind knowing your products are in good hands.


Quality certificates:
ISO 9001 certification for all our activities;
Sector-specific certifications
Comprehensive testing:
Low-pressure static and dynamic pressure testing.
Fatigue test.
Non-destructive testing.
Simulation bench for viscoelastic dampers.
Custom testing to customer specifications.
An electronic curve tracer for precise analysis of test results;
Fluid cleanliness to the highest standards;
Certified welders to guarantee weld quality;
An air-conditioned metrology room for accurate and reliable measurements;
High-performance test benches to test products under real-life conditions;
A test bench with a capacity of 8,000 liters, a flow rate of 470 liters/min. and a power of 50 kW for testing products with different types of oil;
Collaboration with recognized control bodies;
Lifetime traceability of all our products’ technical files since 1950.