491 80W234P5E1 AU20KE0

Butterfly valve, pneumatic NC

Item number: 88925067
Description
Type 491 Butterfly valve, pneumatically operated Edessa
DN 80 DN 80
Body configuration W Intermediate flange version (Wafer), length FTF EN 558 series 20
Operating pressure 2 10 bar
Connection type 3 PN 16 / flange EN 1092, face-to-face dimension FTF EN 558 series 20
Body material 4 316L
Disc/shaft material P Stainless steel, PFA encapsulated, FDA approval
Shut-off seal material 5E TFM/EPDM (FDA certification)
Control function 1 Normally closed (NC)
Operator version AU20KE Single acting, spring closing, ASR0200US14 F07F10YS17/S14A
Operator particulars 0 Anodized aluminium

This article is listed as a Dual-Use-good according to Regulation EU 2021/821 under Control list No. 2B350g. If these goods are supplied to countries outside the EU, the relevant export restrictions apply.
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The GEMÜ 491 Edessa PTFE lined butterfly valve has a metal actuator and is pneumatically operated. The "Normally Closed", "Normally Open" and "Double Acting" control functions are available. Disc and shaft are one piece, body and liner are available in different designs. The butterfly valve is available in nominal sizes DN 25 to 600 and in standard installation lengths ISO 5752/20 | EN 558-1/20 | API 609 category A (DIN 3202 K1) in wafer and lug body versions.

  • Suitable for chemically corrosive media
  • Bubble tight sealing, in accordance with EN 12266-1/P12, leak rate A
  • High-quality selection of materials can be combined in different ways
  • High level of plant reliability thanks to one-piece shaft and spring-washer-supported seal system
  • Long service life thanks to shaft bearings and special disc and liner geometry
  • Optional accessories are installed, set and tested so they are ready for operation