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Sempell-P-raisteam 3 way valves

Sempell Raisteam 3 Way Valves (Feed Water Heater Protection System)

Product Description

Typical feed water heater isolation system

Caractéristiques

  • These valves are designed to bypass high pressure feedwater around a group of heaters in the event of high-water level in the shell caused by a defective tube, weld or drain system.
  • Protection is achieved in the system by installing fast closing tee and changeover valves in the pipework around a heater or group of heaters.
  • One-piece body designed for temperature up to 648 °C
  • Extensive range (ASTM, DIN) of forged steel body and bonnet material
  • Internal passages designed for minimum pressure drop
  • Split stem (with separate coupling) to allow hand operation for commissioning and maintenance without having any effect on normal operation.
  •  The motive power employed is the feedwater pressure and the system is designed to ‘fail safe’ in that the heaters will be by-passed if either electric or pneumatic supplies fail.
E-End Connection:
Butt Weld
E-Material:
Carbon Steel, Alloy Steel, Stainless Steel
E-Media:
Water, Steam
E-Operating Temperature:
Up to 648 °C
E-Process Connection:
BWE
E-Seat/Seal Type:
Metal-to-Metal, Soft Seat
E-Valve Size:
DN 150 - 700
E-Valve Type:
Three-Way Valve, Engineered Product, Globe
Industry:
Power

Documentation et schémas