HögforsValves  

  PRODUCTS TABLE  
  BLUE LINE  
  Butterfly valves  
  • 31100 series  
  • 31300 series  
  • 31500 series  
  Ball valves  
  • 34000  
  • 34100  
  • 34200  
  • 34300  
  • 34500  
  • 36000  
  • 38000  
  Strainers  
  • 38500  
  SILVER LINE  
  Butterfly valves  
  • 411 series  
  Ball valves  
  • 440  
  • 442  
  • 443  
  • 445  
  • 450  
  Ball sector valves  
  • 455  
  • 465  

411 (41000) series

411 Butterfly valve of stainless steel
PN 25 DN 80 - 800

Butterfly valve 411 is an on-off and control valve for demanding industrial pipelines.

The valve is tight to both directions of flow.

Nominal pressure
PN 25

Closing pressure difference
CS 20 bar DN 80 - 350
TS 25 bar DN 80 - 350
CS 16 bar DN 400 - 800
TS 16 bar DN 400 - 600

 

Temperature and tightness class
AISI 316 max +260°C/ min -40°C ISO5208, EN 12266-1 RATE B
PTFE+C max +180°C/ min -40°C ISO5208, EN 12266-1 RATE A

The max pressure difference depends on the working temperature

Design
The body of this wafer type butterfly valve is made of stainless steel. The double eccentric disc and stem are of stainless steel as well. Stem seals are tightable graphite seals and O-rings.
The butterfly valve is delivered with bare shaft, handlever, manual gear, electric, pneumatic or hydraulic actuator according to customer's needs.

Face to face lenghts According to ISO 5752
EN 558-1 series 20, DIN 3202 K1, or
EN 558-1 Series 25, DIN3202 K2

Connection
Between flanges EN1092-1 Type 11 Facing Type B, PN 25, PN 16, PN 10 ANSI CLASS150

Nominal sizes
DN 80 - 800

Conform with the requirements of the Council Directive 97/23/EC on Pressure Equipement, marking: CE 0575
Class: Gas, group 1 

More detailed information see Product card

Högfors Oy • Tel. +358 (0)2 727 7200
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