1/4 In Iron Straight Gauge Siphon ("Pig Tail"), 885-1 1100I / 1228E
1/4 In Iron Straight Gauge Siphon, 885-1 1100I / 1228E; Capacity: 500 PSI @ 400°F
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In order to prevent live steam from entering a pressure gauge Bourdon tube, a gauge siphon ("pigtail") filled with water should be installed between the gauge and the process line. If freezing of the condensate in the loop of a siphon is a possibility, a diaphragm seal should be used to isolate the gauge from the process steam. Also use siphons whenever condensing hot vapors (not just steam) are present.