491125L233FPS1 SU22KD0 1507

Butterfly valve, pneumatic NC

Item number: 88690206
Description
Type 491 Butterfly valve, pneumatically operated Edessa
DN 125 DN 125
Body configuration L Flange-mounted version (Lug), 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 3 EN-GJS-400-18-LT (GGG-40.3), epoxy coated 120 µm
Disc/shaft material F 1.4462, DUPLEX, steel, polished, Ra 0.8 µm (DN40-DN200)
Seat (liner) PS PTFE/silicone FDA approval
Control function 1 Normally closed (NC)
Actuator version SU22KD Actuator, pneumatic, single acting, clockwise rotation, spring closing, SC0220U 6F07/10 S22
Operator particulars 0 Anodized aluminium
Execution type 1507 Ra <= 0.6 µm mechanically polished internal, surface finish data refers to media wetted surfaces
Surface 1507 Ra <= 0.6 µm internal, mechanically polished, surface finish data refers to media wetted surfaces
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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