1 Technical Requirements - Pacific Gas and Electric Company

Instrument Tubing and Piping 144. 8.8.4. Air Piping, Fittings, and Pneumatic Devices 146. ... The stainless steel liner covering system shall consist of mineral wool and ceramic fiber insulation and an interior stainless steel liner. Insulation shall be retained to prevent packing. ... 316 stainless steel … ................
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