Performance Indicators of Hydraulic Fittings

Mar 18, 2026

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Pressure Resistance 
Refers to the highest leak-free working pressure that a connector can withstand during long-term operation.

 

Sealing Performance 
Requires maintaining a leak-free state under conditions involving high pressure, vibration, or temperature fluctuations. This is typically achieved through the use of O-rings, conical seals, or two-stage sealing structures.

 

Pressure Resistance
The connector must be capable of withstanding a static pressure test of 1.5 to 2 times its rated pressure without leaking or rupturing.


Temperature Adaptability
The sealing material determines the operating temperature range-for instance, from -20°C to +180°C.

 

Material Strength and Corrosion Resistance
The main body is typically constructed from carbon steel, stainless steel, or alloy steel, and must be verified through spectral analysis, hardness testing, tensile/yield strength testing, and similar procedures.

 

Durability
Particularly under conditions involving frequent connection/disconnection or pulsating pressure, the service life must be evaluated through cyclic loading tests.

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