R016600x

Table of Contents

Section 1 Introduction ................................................................................................................ 1-1 Section 2 General Information .................................................................................................. 2-1 2.1 Location .............................................................................................................. 2-1 2.2 Positioning and Anchoring Equipment .............................................................. 2-2 2.2.1 General Installation Requirements ............................................................. 2-2 2.2.2 Equipment Anchoring ................................................................................ 2-3 2.2.3 Grouting ..................................................................................................... 2-3 2.2.4 Clayton PD Feedwater Pump Placement ................................................... 2-4 2.3 Combustion Air .................................................................................................. 2-4 2.4 Customer Connections - Steam Generator ......................................................... 2-5 2.5 Exhaust Stack Installation .................................................................................. 2-5 2.5.1 Installing Exhaust Stacks ........................................................................... 2-6 2.5.2 Installing Exhaust Stacks With External Condensing Economizer ......... 2-11 2.6 Piping ............................................................................................................... 2-13 2.6.1 General ..................................................................................................... 2-13 2.6.2 Systems .................................................................................................... 2-13 2.6.3 Atmospheric Test Valve ........................................................................... 2-15 2.6.4 Steam Header and Steam Sample Points ................................................. 2-15 2.7 Feedwater Treatment ........................................................................................ 2-15 2.7.1 Water Softeners ........................................................................................ 2-16 2.7.2 Make-up Water Line Sizing ..................................................................... 2-16 2.8 Feedwater Supply Requirements ...................................................................... 2-17 2.8.1 Multi-unit Systems ................................................................................... 2-17 2.8.2 Velocity Requirements and Calculation ................................................... 2-18 2.8.3 Acceleration Head (Ha) Requirements .................................................... 2-21 2.9 Flexible Feedwater Hose Connection And Connection Sizing ........................ 2-21 2.9.1 Supply Side Connections ......................................................................... 2-22 2.9.2 Discharge Side Connections .................................................................... 2-22 2.10 Pump Suction and Discharge Piping System Design ....................................... 2-22 2.10.1 General Layout Guidelines ...................................................................... 2-22 2.10.2 Pipe Sizing Guidelines ............................................................................. 2-23 2.11 Net Positive Suction Head (NPSH) .................................................................. 2-24 2.11.1 NPSHA .................................................................................................... 2-25 2.11.2 NPSHR ..................................................................................................... 2-25

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