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PPS Main Steam and Main Feedwater Isolation Valve

The main steam and main feedwater isolation valve is actuated by the medium in the system, using pressurizing principles. It has a block design with direct mounted pilot valves.

This valve is used for main steam isolation valve in BWR and PWR reactors and as a main feedwater isolation valve.

  • Size up to 29.9” (760mm)
  • Class up to 2500
  • Forged/cast carbon or stainless steel
  • QME-1 qualified for steam: Variety of different qualification programs for water and two-phase flows
  • IEEE qualified accessories

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