Main applications

  • Biofuels
  • Boiler circulation
  • Boiler feed systems
  • Breweries
  • Chemical industry
  • District heating
  • Energy
  • Food and beverages
  • Heat transfer, Cooling circuits
  • Industry engineering
  • Nuclear Power Stations
  • Oil /Gas
  • Petrochemical Industry
  • Power Stations < 100 MW
  • Power Stations > 100 MW
  • Special processes
  • Steam circuits
  • Steel
  • Sugar

Technical data

T max 450 °C
DN max 300
PN max 40


Flanged or weld end bellows-type globe valve, Y-valve, with replaceable throttling valve plug (up to DN 100) or shut-off plug (DN 125 and above), singlepiece non-rotating stem; with position indicator, travel stop, locking device; seats made of wear and corrosion resistant Cr or CrNi steel.


In heat transfer systems, industrial plants, building services and shipbuilding. For thermal oils, water, steam, gas and other non-aggressive fluids. Other fluids on request.

Further technical information about NORI 40 ZYLB/ZYSB

Overview of technical data

T -10 – 450 (°C)
DN 15 – 300
PN 40
Actuator options available ex works No
Body design Y-valve body
Bonnet design Yoke
Dimension standard EN 12982/1, EN 558-1/1, ISO 5752/1
Handwheel movememt Non-rising
Valve disc/plug material Metal-to-metal seat
Threaded-end design Flange design, butt weld end design
Stem sealing Bellows with back-up gland packing
Body material (EN standard) 1.0619+N
Main applications Industry and process engineering, Building services
Body/bonnet seal element Internally and externally confined seal