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The NIBCO PTRAP-58 is a wrot copper P-trap with solder cup (CxC) ends, sized at 5/8 inch, designed for use on refrigeration and HVAC suction lines. It is manufactured in an ISO 9001 certified facility and carries a 50-year limited warranty. The primary function of this fitting is to loop the suction line down to the floor before it runs vertically upward. This loop prevents compressor oil from draining back into the compressor during shutdown. The wrot copper construction provides consistent wall thickness and reliable joint strength when soldered.
This P-trap is used on the suction line of refrigeration compressors in both commercial and residential refrigeration systems. It is installed at the base of vertical riser sections to prevent oil migration back to the compressor during off cycles. An additional P-trap is required for every 20 feet of riser pipe to prevent high-velocity oil or liquid buildup as the system returns to operation after shutdown. Licensed refrigeration technicians and HVAC mechanics typically handle this installation as part of suction line riser configuration.
Designed as an OEM-style copper suction line fitting for 5/8 inch CxC refrigeration and HVAC suction line riser applications.
Installation should be performed by a licensed HVAC technician or refrigeration mechanic following applicable mechanical codes. Recover all refrigerant and relieve system pressure before cutting into the suction line. Ensure the pipe ends are clean, deburred, and properly fluxed before soldering or brazing the joint. Refer to NIBCO technical data sheets and catalogs for engineering and installation guidance specific to this fitting.
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