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The Rolair 5520K17 DISCHTB Discharge Tube is an essential part that is of high quality and fits the air compressors belonging to the 5520K17 series. This copper tube fitting will have the fitting required to fit the compressor head to the tank to aid the flow of the compressed air. Due to its robust construction, it has better efficiency and lasts long. The discharge tube forms a passage through which the compressed air of the compressor head gets into the air tank. It forms part of the functioning of the compressor whereby compressed air can also be stored effectively to be used later.
Is the Rolair 5520K17 Air Compressor DISCHTB Discharge Tube compatible with all Rolair air compressors?
No. This discharge tube is designed specifically for compatible Rolair K17-based compressor systems. Always verify your compressor model and tubing configuration before replacement to ensure proper fit and alignment.
Why is my compressor still losing pressure after replacing the discharge tube?
Continued pressure loss may be caused by pump valve issues, loose fittings, or leaks in other air pathways. Inspect the entire discharge system, including the cylinder head and tank check valve, for additional faults.
Can I replace the Rolair 5520K17 discharge tube myself?
Most users can perform the replacement using standard hand tools. Before starting, disconnect power, fully release tank pressure, and carefully support fittings to avoid damaging threaded connections during removal and installation.
What is the purpose of the Rolair DISCHTB discharge tube?
The discharge tube transfers compressed air from the pump head to the air tank. It plays a key role in maintaining system pressure efficiency and ensuring safe, controlled airflow during compressor operation.
The Rolair 5520K17 Air Compressor DISCHTB Discharge Tube, a critical high-pressure air transfer line that moves compressed air from the pump head to the tank assembly.
Common Symptoms:
Air leaking near discharge tube fittings.
Compressor struggling to reach full pressure.
Excessive vibration at pump head connection points.
Visible cracks or wear on metal discharge tubing.
Overheating around pump discharge area.
Air Leaking at Discharge Tube Connection.
Quick Check: Inspect both ends of the Rolair DISCHTB discharge tube for hissing while the compressor is running.
Fix Suggestion: Tighten fittings evenly and inspect compression ferrules or sealing surfaces for damage. Replace the discharge tube if threads or flared ends are compromised.
Prevention Tip: Avoid over-tightening fittings, which can deform sealing surfaces and cause long-term leakage.
Compressor Not Reaching Full Pressure.
Quick Check: Observe whether the compressor stalls below normal cutoff pressure.
Fix Suggestion: Check for leaks or restrictions in the DISCHTB discharge tube that reduce airflow efficiency between pump and tank.
Prevention Tip: Periodically inspect the entire discharge line during routine compressor maintenance.
Excessive Vibration at Pump Outlet.
Quick Check: Look for movement or stress at the discharge tube where it connects to the pump head.
Fix Suggestion: Ensure the Rolair 5520K17 discharge tube is properly aligned and not under tension. Replace bent or fatigued tubing.
Prevention Tip: Secure mounting brackets to reduce vibration transfer to rigid tubing connections.
Overheating Near Pump Discharge Area.
Quick Check: Check for excessive heat buildup around the discharge tube after extended compressor operation.
Fix Suggestion: Inspect for internal blockage or restricted airflow in the DISCHTB tube causing backpressure buildup.
Prevention Tip: Maintain clean pump valves and ensure proper airflow to reduce thermal stress on discharge components.
Customer Experience:One Rolair user reported that replacing the DISCHTB discharge tube stopped persistent air leakage near the pump head immediately.
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