77.5 / 3.0 92.5 / 3.6 52 / 2.0 21 /0.8 91 / 3.5 77.5 / 3.0 92.5 / 3.6 18 / 07 27 / 1.0 1/2" NPT 21 x21 Ø9 / 0.3 77.5 / 3.0 92.5 / 3.6 27.5 / 1.0 38.5 / 1.5 275 / 1 0 38.5 / 1.5 51.5 / 2.0 Ø9 / 0.3 1/2" NPT 21 x21 77.5 / 3.0 92.5 / 3.6 WGI Tridicators ( Pressure / Temperature / Altitude) WGI Tridicators indicate pressure, temperature and altitude in one compact instrument. WGI Tridicators are intended for use on all types of hot water heating systems. Specifications Case Material Drawn steel Tube & Socket Bronze tube, Brass Socket Pointer Black & Red Aluminum Dial White aluminum with black lettering Accuracy ± 1% full scale Connection 1/2" NPT Window Glass Stem 1/4" Brass stem Dial Size 3½” Y22004 Dial Scale Triple scale psi, feet of water & Degrees Celsius & Fahrenheit Part Number Connection Temp Range Pressure Range Y22002 Bottom 30 °/260° F/C 0-60 psi / kpa Y22004 Bottom 30 °/260° F/C 0-100 psi / kpa Y22006 Lower Back 30 °/260° F/C 0-60 psi / kpa Y22008 Lower Back 30 °/260° F/C 0-100 psi / kpa Dimensions: mm / inch
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