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Sempell Model 801 Controlled Non-Return Valves
801-80254484
Controlled non-return valve to protect HP turbine against reverse flow.
It enables reliable operation even at LP.
Sempell Model 801 Controlled Non-Return Valves

Specs

Body Design
Long Pattern
Material
Alloy, Carbon Steel, Metal, Steel
Operating Temperature
High Temperature
Pressure Class
ASME, PN
Process Connection Type
BWE
Seat/Seal Type
Metal-to-Metal, Swing
Shutoff Class
Class V (FCI 70-2)
Standards
ASME B16.34
Style
Direct-Operated
Valve Size
NPS 14 / DN 350, NPS 16 / DN 400, NPS 18 / DN 450, NPS 20 / DN 500, NPS 24 / DN 600
Valve Size Standard
DN, NPS
Valve Type
Engineered Product

Features

  • Low maintenance gland can be retightened.
  • Hardfaces sealing faces at disc and body seat.
  • Low friction by burnished shaft.
  • Surfaces treated bearing faces on each part with relative motion.
  • Easy to disassemble bodies.
  • Low resistance coefficient x by favorable flow characteristic of internal structure.
  • Actuator mounting right or left possible seen from steam flow direction.
  • Universal connections by various design of welding ends or direct welding-in.
  • Deviating designs of welding ends in regard of dimension and material as well as other actuators, limit switches and special designs according to customers’ request can be supplied.

Education

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