Butterfly valves may be applied as stop and adjusting valves. They may be used, between others, in following systems:

• Heat and electric energy distribution systems; 
  
• Oil and gas installations; 
  
• Steam installations; 
  
•  Installations for aggressive media.
  

• Nominal pressure: PN 6...PN 40, ANSI 150...300
  
• Nominal diameters: DN 80...1200
  
• Type of sealing: lamella type steel/graphite
  
• Maximum pressure difference at closed disk:
  depending on medium temperature
  

As standard, we are offering butterfly valves intended to mounting between flanges. We are also delivering flange butterfly valves or suited to welding-in but on special order only. Construction with triple eccentric will enable you to obtain good tightness at low closing moment. Valve disk is seated on a single shaft by means of pins. A self-aligning socket Is placed in the body or in valve disk. Tightening surface is hardened. Shaft is sealed with graphite inserts and retightening is possible in there.

• Inter-flange as standard, 
  
•  Flange as option on special order, 
  
•  Welded as option on special order.

Butterfly valves are fitted with: 

• Worm gears as standard; 
  
• Pneumatic, electric and hydraulic drives as special execution

Tightness class: 

•  Test according to ISO 5208, class A.