Stubbe K200蝶阀

Advantages
DN 50 to DN 200
• double shaft seal
• O-ring as a flange seal contained in our scope of delivery
DN 250 to DN 600
• liner as a sealing element
• liner makes additional flange seals superfluous

Application
• chemical plants

Use
• for shutting off pipeline systems

Flow media
• neutral and aggressive fluid or gaseous media, provided that the valve components coming into contact with the media are resistant at the operating temperature in accordance with the ASV resistance list. 
Media containing solid particles impair the operating life of the valve.

Tests/inspections:
• requirements and tests/inspections according to DIN 3441, 3442, 8063, 16962/3. DIN EN 12266,leakage rate A tested

Nominal pressure
• DN 50 - DN 125PN 10
• DN 150 - DN 350PN   6
• DN 400PN   5

Fluid temperature
• see pressure/temperature diagram

Operating pressure
• see pressure/temperature diagram

Size
• DN 50 - DN 400  
  
Body/Shut-off disk
DN 50 to DN 200
• PVC-U/PVC-U
• PP/PP
• PVDF/PVDF
DN 250 to DN 400
• PVC-U/PP
• PP/PP
• PVDF/PVDF

Shaft
• stainless steel 1.4305

Bearing bushes
• PVDF

Sealing elements
• stirrup-type sealing element made of EPDM or FPM
• O-rings made of EPDM or FPM

Actuation
DN 50 to DN 200
• with hand notch lever, spring-loaded latch or en gagement mechanism with 7 notches, each 15'
DN 250 to DN 400
• with manual gear

Connection
• intermediate flange construction according to DIN 2501 PN 10/16 between flat sleeves or welding
necks acc. to DIN/ISO

Mounting position
• preferably hand notch lever or drive upward

Option
• electrical or pneumatical actuation