Reasons for Leakage in Threaded Rubber Expansion Joint

Thread Union Rubber Expansion Joint is prone to leakage in the following situations:

1.Improper Installation:

If during installation, the neck of the joint's spherical body is not fully seated in the Flange groove, or if installation screws are over-tightened causing damage to the rubber sealing surface, leakage may occur.

2.Flange Compatibility Issues:

Using flanges that do not match the Threaded Flexible Connection specifications (e.g., oversized flanges) may damage the sealing surface during pipeline operation, leading to leakage.

3.Over-Extension Installation:

Forcing the joint to stretch beyond its designed compensation capacity due to insufficient length may prevent normal flange separation, compromising sealing effectiveness and increasing leakage risks.

4.Pipeline Stress:

Displacement or vibration of pipelines during operation, or inadequate support causing compressive displacement, may damage the joint's sealing surface and result in leakage.

5.Environmental Factors:

Prolonged exposure to harsh environmental conditions (e.g., extreme temperatures, UV radiation, chemical corrosion) may accelerate joint aging, degrade sealing performance, and elevate leakage probabilities.

Threaded Rubber Flexible Connection preventive measures:

Strictly follow manufacturer's installation guidelines

Conduct regular inspections and replace worn components promptly

Ensure pipeline system stability with proper support to minimize stress-induced leakage risks.