Natural gas plant, discharge piping on a compressor, 1" weldalet, 1" AG relief valve, 985 psig MAOP, minimal discharge piping. Will a double x fitting change the relief capacity? Where do I find written proof either way?
We are being asked to change out all schedule 80 pipe nipples to Double X nipples. The ID of the nipples will be substantially smaller. If the nipple is on the inlet side of the relief, will it affect the capacity of the relief?