Troubleshooting Common Issues with Wates Pressure Vessels

Wates pressure vessels are designed for long-term reliability, but like any system component, they may encounter operational issues. Understanding common problems and their solutions can help maintain system efficiency and extend the life of your vessel.

1. Low Water Pressure in the System
Possible Causes:

• Insufficient pre-charge air pressure in the vessel.
• Pump not operating correctly or cycling too frequently.
• Clogged inlet or outlet connections.
• Water leakage in the system.

Solutions:

• Check and adjust the vessel’s pre-charge air pressure according to manufacturer guidelines.
• Inspect the pump for proper operation; repair or replace if needed.
• Clean inlet and outlet pipes to remove debris.
• Check for leaks in the piping, valves, or vessel itself and repair.

2. Frequent Pump Cycling (Short Cycling)
Possible Causes:

• Vessel air charge is too low, causing rapid pressure drops.
• Pressure switch set incorrectly.
• Bladder or diaphragm inside the vessel is damaged or ruptured.

Solutions:

• Measure and reset the pre-charge air pressure.
• Adjust the cut-in and cut-off pressure on the pressure switch.
• Inspect the bladder or diaphragm and replace if damaged.

3. Water Hammer or Pressure Surges
Possible Causes:

• Air in the system or insufficient vessel capacity.
• Loose piping or improperly secured connections.
• Malfunctioning check valves.

Solutions:

• Bleed air from the system to remove trapped pockets.
• Ensure the vessel size matches system requirements; upgrade if necessary.
• Secure piping and check that all valves are functioning correctly.

4. Pressure Gauge Shows No or Incorrect Reading
Possible Causes:

• Faulty or clogged pressure gauge.
• Blocked vessel connection or air pocket affecting the reading.

Solutions:

• Replace or recalibrate the pressure gauge.
• Clean the connection and ensure water can reach the gauge port without obstruction.

5. Leaks Around the Vessel
Possible Causes:

• Loose or improperly sealed connections.
• Cracks in the vessel body or damaged bladder/diaphragm.

Solutions:

• Tighten connections and apply Teflon tape or pipe sealant as needed.
• Inspect the vessel for damage and replace if necessary.
• Replace the bladder or diaphragm if leaks are internal.

6. Vessel Not Maintaining Pressure
Possible Causes:

• Air loss in the vessel (bladder puncture or slow air leak).
• Pressure switch malfunction or incorrect settings.

Solutions:

• Re-charge the vessel with the correct pre-charge air pressure.
• Inspect and replace damaged bladder or diaphragm.
• Adjust or replace the pressure switch as per system requirements.

7. Strange Noises During Operation
Possible Causes:

• Cavitation in the pump due to low water supply.
• Loose or vibrating piping.
• Air trapped in the vessel or system.

Solutions:

• Check water supply and pump operation.
• Secure loose pipes and use anti-vibration supports if needed.
• Bleed air from the vessel and system.

Maintenance Tips to Prevent Issues

• Check air pre-charge pressure every 3–6 months.
• Inspect bladders and diaphragms periodically.
• Regularly monitor system pressure and pump operation.
• Keep valves and gauges clean and functional.
• Ensure proper vessel sizing for your system’s requirements.

Most common Wates pressure vessel issues arise from incorrect air pre-charge, improper system settings, or worn internal components. Regular maintenance, correct installation, and timely troubleshooting can prevent system failures, reduce pump wear, and extend vessel life. For more info contact Wates Pressure Vessel Supplier in UAE or call us at +971 4 2522966.

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