Sempell Model 142 High Pressure Water Control Valve

Sempell Model 142 High Pressure Water Control Valve

Specially designed low-maintenance control valves for a wide range of applications in water circulation.
Sempell™ series 142 designer angular water control valves for the following applications:
• Water injection at HP/IP Bypass.
• Feedwater Start-up Control valve.
• Minimum Flow valve at Feedwater pumps.
• Blow-down valve at drum boilers.
The narrowly scaled Cv values-series and a large control ratio allow an exact adjustment for the respective task. The trims can be easily changed. A huge combination of material choices and multi pressure reduction stages.

Any questions?

Linda Grönqvist
Solution Seller
Phone. +46 40-33 02 32

Niklas Pettersson
Account Manager
Phone. +46 54-57 92 09

Anders Praem
Inside Sales Engineer
Phone. +45 2137 7759

Frank Kirk Hansen
Area Account Manager West
Phone. +45 4053 6511

Slawka Pedersen
Inside Sales Manager
Phone. +45 2137 7702

Henna Ketoja
Inside Sales Engineer
Mob. +358 400 612 124

Risto Wallin
Country Manager Askalon Finland
Phone. +358 207 416 209
Mob. +358 400 448 248

Size DN 65 to DN 400 / NPS 1 to 10
Pressure class Class 3000
Pressure Up to 480 bar, Up to Class 2800
Temperature -29 °C to 400 °C, -20 °F to 750 °F
Body material A105, A182 F12 / A182 F22 special design 
Trim material Stem 1.4057 / 1.4122 (17% Cr steel)
Cages 1.4057 / 1.4122 (17% Cr steel)
Seat ring 1.4057 / 1.4122 (17% Cr steel)
Stem sealing PTFE (up to 480°F), pure graphite
Plug design A–type – parabolic Flow To Close (FTC)
L–type – multistage Flow To Close (FTC)
X–type – single stage Flow To Open (FTO)
Characteristic Equal percent (square, linear on request)
Control ratio Standard 1:40
Sealing seat/plug Metallic
Connection Butt weld ends acc. to ASME B16.25 or ISO 9692-1
Leakage class ANSI / FCI 70–2 class V DIN EN 12266–2 class B
  • Modular design.
  • The valve is suitable for continuous operation.
  • Good adjustment to the task by narrowly staged Cv–value–series and large control ratio.
  • Trims can be changed easily while valve is welded into pipe.
  • Different plug types available.
  • Minimized wear and tear through separation of sealing and control area at high Δp.
  • Different actuator types can be used.
  • With low–friction PTFE packing at design temperatures ≤ 480°F.
  • Resistant for standard pickling process.
  • The stem nut can be re–lubricated during operation.
  • Thermal expansion by high temperature differences at stem will be balanced by cup spring in yoke head.

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