Troubleshooting and solutions for nitrogen generator solenoid valve failures

Classification: Company news

Release time: 2023-06-15

Summary:

A nitrogen generator is a nitrogen gas production device designed and manufactured using pressure swing adsorption (PSA) technology. It utilizes high-quality imported carbon molecular sieves (CMS) as adsorbents and employs the PSA principle at room temperature to separate air and produce high-purity nitrogen. Typically, two adsorption towers operate in parallel, controlled by an imported PLC to automatically control pneumatic valves. They alternately perform pressure adsorption and depressurization regeneration to separate nitrogen and oxygen, obtaining the required high-purity nitrogen.
Today, let's discuss troubleshooting and solutions for electromagnetic valve malfunctions in nitrogen generators:
 
1) Electromagnetic Nitrogen Valve Malfunction:
 
If the light response operation of the electromagnetic valve and valve switch does not have a corresponding nitrogen response, the problem may be a malfunction of the electromagnetic valve or its connecting circuit.
 
Solution: First check the nitrogen generator circuit and eliminate any mechanical malfunctions. For a fault-free circuit, replace the electromagnetic valve.
 
2) Control Valve Hydraulic Cylinder Leakage in Nitrogen Generator
 
Manually switch the valve on and off; observe if there is gas discharge from the electromagnetic valve's exhaust port. If gas is discharged, the internal leakage of the control valve cylinder prevents the nitrogen generator from switching.
 
Solution: Contact the manufacturer to replace the backup cylinder.
 
3) Electromagnetic Nitrogen Valve Jamming Malfunction
 
If the electromagnetic valve indicator light and switch status show a corresponding nitrogen response but the control valve does not respond, the electromagnetic valve may be jammed or the control valve may be malfunctioning. Check the two exhaust ports of the manual switch or exhaust. If there is alternating discharge, the electromagnetic valve is intact and the problem lies with the control valve program. If the electromagnetic valve cannot discharge gas alternately, the electromagnetic valve is jammed.
 
Solution: Remove and disassemble the electromagnetic valve, then clean the inside of the valve.

Key words: Troubleshooting and solutions for nitrogen generator solenoid valve failures

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