How to handle leakage of pressure balance elements

When leakage of pressure balance elements occurs, the first step is to stop the system operation and isolate the affected component promptly.

• Stop and Isolate

  This involves closing relevant valves to cut off the supply of the medium flowing through the elements. Isolating the leaking part prevents the leakage from spreading, reduces the risk of medium waste or environmental contamination, and creates a safe environment for subsequent handling. It is important to avoid continuing to use the system with a leak, as this can worsen the damage to the elements and potentially cause more serious safety hazards.

• Implement Safety Precautions

  Depending on the type of medium, wear appropriate personal protective equipment—such as chemical-resistant gloves, safety goggles, or protective clothing—to avoid direct contact with the leaking medium, which may be corrosive, toxic, or have high temperature. Ensure the surrounding area is well-ventilated if the medium is volatile, and keep any ignition sources away if the medium is flammable. These measures protect the operator from harm during the handling process.

• Inspect the Leaking Element

  Carefully inspect the leaking element to identify the leak location and possible causes. Check the connection points between the element and the pipeline first, as loose fasteners or damaged seals are common causes of leakage. Examine the surface of the element for cracks, corrosion, or signs of wear, which may also lead to medium seepage. Understanding the root cause—whether it is seal failure, material deterioration, or improper installation—helps determine the most effective repair method.

• Repair or Replace

  After identifying the cause, carry out targeted repair or replacement. If the leak stems from loose connections, re-tighten the fasteners properly (avoid over-tightening to prevent further damage). For damaged seals, replace them with new ones that match the element's specifications, ensuring the new seals are clean and free from defects. If the element itself has cracks or severe corrosion, replace the entire element, as partial repairs may not resolve the issue permanently. During installation, ensure the element is aligned correctly with the pipeline and all interfaces are sealed properly.

• Conduct Pressure Test

  Finally, conduct a pressure test after repair or replacement to verify that the leakage has been resolved. Reconnect the element to the system, gradually restore the medium supply, and monitor the element and its connections for any signs of seepage. Once confirmed leak-free, record the handling process and schedule regular inspections of the pressure balance elements to detect potential issues early and prevent future leakage.