Vaisala PR-23 Series - Figure 104 Mounting Steam Wash to Isolation Valve

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Prism steam wash
-see manual for recommended wash
pressures and times
Warning
: Drain valves,
normally closed
Box steam flushing
before retraction
Figure 104 Mounting steam wash to isolation valve
If the steam pressure exceeds the maximum pressure dierential, a pressure-reducing valve
PR‑3341‑J must be installed to reduce the steam pressure to optimal design.
Chapter 11 – Safe-Drive
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