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SPEC SWASSPECIFICATION OF STEAM AND WATER ANALYSIS SYSTEM FOR THERMAL POWER PLANT. Monday, November 30, 2009. STEAM AND WATER ANALYSIS SYSTEM (SWAS). 5020 Sample Piping System. A) All process connection , piping, valve etc of SWAS analysers shall be conform to ANSI/ISA SP 77.70- 1994 (R 2005) “Fossil Fuel Power Plant Instrument Piping Installation”, ANSI B 31.1 “Power Piping”, PTC 19.11,ASTM D 1066 for steam and IBR unless otherwise specified. E)The valves to be used in sample piping shall be of globe type, forge...
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