Refrigerant Pipe Sizer

How to read these sizes

• Sizes come straight from the manufacturer line-sizing tables. The lookup is done in imperial units, so metric inputs are converted first.
• When the exact length, capacity or temperature is not tabulated, the table picks the next size up rather than interpolating.
• Equivalent length must include the allowance for fittings, bends and valves, not just the straight run of pipe.
• Check oil return on risers and confirm the selection against the compressor manufacturer's data before ordering.