2000 Hook-up Book

Diagram Index

Page

Figure II-1

Boiler Steam Header . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84

Figure II-2

Draining End of Low Pressure Steam Main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84

Figure II-3

Draining and Air Venting Steam Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85

Figure II-4

Draining Expansion Loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85

Figure II-5

Draining Steam Mains to Return Main at Same Level . . . . . . . . . . . . . . . . . . . . . . . . . . .86

Figure II-7

Hook-up with Condensate Return Line at High Level . . . . . . . . . . . . . . . . . . . . . . . . . . . .86

Figure II-8

Draining Steam Main where Trap must be at Higher Level . . . . . . . . . . . . . . . . . . . . . . . .87

Figure II-9

Condensate Drainage to Reinforced Plastic Return Line, with Overheat Protection . . . . .87

Figure II-10

Typical Steam Tracer Trapping Arrangements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

Figure II-11

Steam Tracing System with Preassembled Manifolds . . . . . . . . . . . . . . . . . . . . . . . . . . .88

Figure II-12

Typical Pressure Reducing Valve Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89

Figure II-13

Parallel Operation of Pressure Reducing Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89

Figure II-14

Series Pressure Reducing Valve Station for High Turndown Rations . . . . . . . . . . . . . . . .90

Figure II-15

Hook-up for Remote Operation of 25 PRM Pressure Reducing Valve . . . . . . . . . . . . . . . .90

Figure II-16

Installation of Pressure Reducing Valve in “Tight Spaces” . . . . . . . . . . . . . . . . . . . . . . . .91

Figure II-17

Low Capacity Pressure Reducing Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91

Figure II-18

25 BP Back Pressure Controls used to Restrict Supply to Low Priority Uses at Times of Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92

PRODUCT INFORMATION

Figure II-19

Reducing Steam Pressure Using 25PA Control Valve with Remote Air Valve . . . . . . . . . .92

Figure II-20

Typical Pneumatic Single Stage Pressure Reducing Valve Station . . . . . . . . . . . . . . . . . .93

Figure II-21

Pneumatic Temperature Control of Heat Exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93

Figure II-22

Hook-up for 25 TRM Temperature Control Remotely Mounted (within 15 ft. of Main Valve) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93

Figure II-23

Pressure Reducing Valve for Pressure Powered Pump Motive Steam . . . . . . . . . . . . . . .94

Figure II-24

Heat-up, Pressuring and Shutdown of Steam Mains using On/Off Control Valves and Programmer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94 Complete Condensate Drainage from Air Heater Coil under “Stall” with Combination Pump/Trap in a Closed Loop System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95

Figure II-25

149