1 Technical Requirements - Pacific Gas and Electric Company

Max. Gas Temperature (°F) Material Below 750 C. S. 750 – 1,200 TP 409 SS 1,200 -1,400 TP 304 SS Transition ductwork internal gas path liner shall be a 12 gauge-minimum thickness for the floor, sides, and roof. HRSG liner shall be 12-gauge minimum thickness for floor panels and 16-gauge thickness for sidewalls and roof. ................
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