Reotemp’s W9FF flanged flush-face seal is a one-piece, all-welded assembly. The diaphragm is integral with the flange, giving a crevice-free surface that keeps process flow sweeping across to prevent solids buildup. It is the most economical choice for 316 SS service, and can also be supplied in solid Hastelloy, Monel, Alloy 20, and other exotic alloys when enhanced corrosion resistance is required. One-piece Seal Design Bolts Directly to Process Flange Center or Side Instrument Exit Commonly Supplied with Flush/Calibration Ring Ideal for Gauge or Differential Pressure Transmitters