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Pigtail siphons are used in steam service to protect the instrument from direct exposure to high temperature steam.

Most pressure measurement devices have maximum working temperatures between 100 and 250°F, so when measuring fluids that exceed those temperatures cooling elements must be applied in order to properly measure. In this video we explain the use of pigtail siphons for steam applications, capillary and cooling towers for hot liquid and gas applications, and when to properly use diaphragm seals. We also answer questions like: Can I use a pigtail siphon in non-steam application? Can I use a cooling tower in steam applications? and more.