If your pressure reducer is experiencing erratic pressure, it is indeed possible that the unit is in need of inspection or maintenance. Below are possible causes and corresponding solution suggestions to help you quickly troubleshoot the problem:
Common Causes and Solutions
Wear and tear of the internal components of the pressure reducer
Phenomenon: High pressure fluctuations and failure of the adjustment knob.
Cause: Diaphragms, springs or valve seals are deteriorating.
Treatment: Replace the worn parts after disassembling and inspecting (recommended to be operated by professionals).
Unstable intake pressure
Phenomenon: Output pressure changes drastically with input pressure.
Check point: Confirm whether the pressure of the upstream air source is stable, and install a pressure regulator valve if necessary.
Excessive change of outlet load
Phenomenon: Frequent starting and stopping of gas-using equipment leads to sudden pressure changes.
Solution: Increase the gas storage tank on the outlet side to buffer the pressure fluctuation, or choose the pressure reducer with larger flow specification.
Clogging or freezing of impurities
Phenomenon: Sluggish pressure regulation, accompanied by poor airflow.
Treatment: clean the filter, drain the pipeline water; low temperature environment need to add electric heaters to prevent freezing.
Improper selection
Phenomenon: Long-term overload operation leads to performance degradation.
Suggestion: Check whether the rated flow rate and pressure range of the pressure reducer match the actual demand.
Quick self-test steps
Observe the pressure gauge: record the input and output pressure value, confirm whether the fluctuation is out of the normal range.
Watch for leaks: Use soapy water to coat the ports and watch for bubbles.
Listen for strange noises: If there is a gas leak, it may be a seal failure.
Manual Adjustment: Try adjusting the knob slowly to check the pressure response.
Troubleshooting the gas end: Turn off the downstream equipment and observe whether the pressure returns to stability to determine whether it is a load problem.
Maintenance Tips
Regular Maintenance: Check seals and clean cartridges every 3-6 months.
Replacement of consumables: Rubber seals are recommended to be replaced once every 1-2 years (depending on the frequency of use).
Professional calibration: Precision application scenarios require periodic delivery of pressure accuracy checks.
If the above steps still can not solve the problem, or the equipment has serious leakage / damage, it is recommended to contact the manufacturer or professional maintenance personnel to deal with, to avoid potential safety hazards.
Tip: Be sure to cut off the gas source and relieve the pressure before operation! Safety first!
Post time: May-16-2025