Yokogawa Electric Corporation FS20-S22-TP Flow Fittings

The Yokogawa FS20-S22-TP Flow Fitting is a flow-through mounting accessory for pH and ORP sensors, designed to sit in a bypass or sample line to deliver representative, in-line measurements of process liquids. Commonly installed in bypass lines of chemical processing, water treatment, and process plants, it enables reliable sensor installation, easy maintenance, and continuous analysis for maintenance teams, OEMs, and system integrators. Key specifications include manufacturer Yokogawa; model FS20-S22-TP; product type Flow Fitting for pH/ORP measurement; installation in-line or bypass; measurement type pH and ORP; installation location bypass line behind sample valve; process connections typically 1/2\" NPT or flange (model dependent); mounting method welded or cemented into piping or a T-piece; wetted parts PP, PVC, PVDF, or Stainless Steel AISI 316; O-rings silicone or Viton; features calibration dish holder and optional chemical or brush cleaning systems; operating conditions designed for high pressure and temperature industrial environments; mounting angle recommended less than 15° from horizontal. It is commonly used in water treatment facilities, chemical plants, food processing systems, and wastewater applications where stable and accurate monitoring is critical. Common replacements include Yokogawa FF20-S22-TP, Yokogawa FS20-S32-TP, and Yokogawa FD20 immersion fittings.