Pilot Operated Series Reducing Station (Screwed)

The drawing shows the correct way to install the reducing station and the role of each component.

Pilot Operated Series Reducing Station (Screwed)
 

Component Descriptions

Part   Component Function
1 Separator to protect the reducing valve from wet steam
2 - 6 inc. Separator Steam Trap Set  
7 Isolating Valve to isolate the first reducing station from the steam supply
8 Strainer to protect the reducing valve station from detritus
9 Pressure Gauge to monitor the upstream pressure
10 Reducing Valve to reduce the high pressure supply for the second reducing valve
11 Pressure Gauge to monitor the control pressure of the first reducing valve
12 - 16 inc. Drain Point Steam Trap Set  
17 Isolating Valve to set the pressure of the first reducing valve under no load conditions
18 Reducing Valve to reduce the medium pressure supply for low pressure use
19 Safety Valve to protect the downstream equipment from overpressure
20 Pressure Gauge to monitor the control pressure
21 Isolating Valve to set the second reducing valve on a no load condition
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Table of Parts

Part   Component Bronze Cast iron SG iron Steel Stainless steel Product details
1 Separator   S2 S1 S5 S6 Separators & Insulation Jackets
2, 6, 7, 12, 16, 17, 21 Isolating Valve Globe Type HV3     A3S   HV3 Stop Valves or Bellows Sealed Stop Valves
Piston Type       RP31   Piston Valves
Ball Type       M10 M10 Ball Valves
3, 8, 13 Strainer Fig 1 or 12 Fig 13 Fig 12SG Fig 14 Fig 16 or 16L Strainers & Filters
4, 14 Ball Float Steam Trap with Monitor     IFT14     Steam Trap Performance Monitoring
5, 15 Check Valve LCV1     LCV2   Check Valves
9, 11, 20 Pressure Gauge 100 mm Diameter Pressure Gauge with 'U' or Ring Syphon Pressure Gauges & Temperature Gauges
10, 18 Pressure Reducing Valve     DP27     Pressure Reducing & Surplussing Valves
19 Safety Valve SV615 SV73       Safety Valves
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