April 2, 2005
Specifications for the Ashcroft Type 1259 process gauge include 0.05% ASME B40.1 Grade 2A accuracy, a 4 1⁄2-in., solid-front safety case, 316 SS or Monel wetted parts and ranges from vacuum through 20,000 psi, including compound. It features a 300 SS movement and a thermoplastic case. It can be liquid filled in the field without a fill kit. The Duratube, with an as-welded Bourdon tube, controls the location of the weld in the lowest stress area for safety.