High Pressure Seal Service Life Test: DMHUI Nitrile vs Viton TCV Seal Data

Test Dimensions:

• Service Life Test: The DMHUI high pressure seal was tested for service life under continuous pressure conditions. Nitrile and Viton TCV seals were subjected to 25MPa and 30MPa pressure for 500 hours each. The nitrile seal showed no signs of degradation, while the Viton seal lasted 50% longer under the same conditions, showing excellent durability in high-pressure environments.
• Temperature Cycle Test: Both nitrile and Viton seals were exposed to extreme temperature cycling. The nitrile seal withstood temperatures between -40°C to 120°C, and the Viton seal withstood a range of -20°C to 200°C, maintaining sealing performance throughout the test period.
• Medium Immersion Test: The nitrile seal was immersed in mineral oil for 30 days with a volume change of less than 5%. The Viton seal was exposed to strong acids for 30 days, showing no swelling or degradation, confirming both materials' resistance to harsh chemical environments.

Data Comparison:

When comparing the DMHUI seals to industry standards, the performance data was outstanding. The nitrile seal showed an average leakage rate of 0.02ml/h, while the Viton seal maintained a rate of 0.01ml/h—significantly lower than the industry average of 0.1ml/h. The test results clearly demonstrate the superior durability and leak-proof performance of DMHUI seals.

Additional Observations:

• The Viton TCV seal outperformed the nitrile seal in long-term service life tests, confirming its suitability for high-temperature and high-pressure applications.
• The nitrile seal exhibited excellent resistance to standard hydraulic fluids, while the Viton seal excelled in extreme conditions involving chemicals and high temperatures.
• Both materials provided superior sealing performance compared to the industry standard, with a dramatically lower leakage rate and higher resistance to operational stresses.

Keywords: high pressure seal service life test, DMHUI nitrile TCV seal, Viton TCV seal performance, leak-proof high pressure seal, high pressure seal performance data.