Schroedahl steam converting valve for power plants and process plants

Video on the steam converting valve

Function of the Schroedahl PRDS: Pressure reducing and desuperheating of superheated steam.

Schroedahl Steam converting / Steam Conditioning / PRDS

Inlet: DN 40 ~ 500 NPS 1½ ~ 20,PN 16 ~ 630, ANSI Class 150 ~ 2500

Outlet: DN 80 ~ 1600 NPS 3 ~ 64, PN 16 ~ 250, ANSI Class 150 ~ 1500

Temperatures: Up to 560° C (1040°F)
Materiais: Forged steel C22.8 / A105 or Heat-resisting forged steel 16Mo13, 13CrMo4-5, 11CrMo9-10 / A182F12Cl.2, A182F22Cl.3

The Schroedahl Steam converting valves / Steam Conditioning / PRDS have the following special features

• Perforated plug with controlled pressure reduction in two stages
• One or more attenuation plates providing uncontrolled pressure reduction
• Integrated atomiser unit
• Welding ends
• Angle-style body permits vertical stem orientation
• Balanced or unbalanced perforated plug
  

Standard Version :Angle valve body with welding ends and pneumatic actuators.

Other versions

• Flanged connections
• Electric actuators
• Hydraulic actuators
• Globe-style body
• Special sizes, special applications concerning DN/NPS, PN/Class, materials and temperatures are available on request

Schroedahl Spray water valve / Cooling water injection valve

Nominal size: DN 15 ~ 100, NPS ½ ~ 3

Nominal pressure: PN 25 ~ 400, ANSI Class 150 ~ 2500

Medium temperature: up to 220 °C ( 430 °F)

Standard Version

Globe valve with welded ends, controlled pressure reduction in one to four stages, PTFE/graphite packing, equal percentage characteristic

Other versions

• Body with flanged connections
• Angle-style body
• Medium temperatures above 220 °C on request
• Linear or modified linear characteristic
• Electric actuators
• Hydraulic actuators