497250L233PPF0 GB232 7042

Butterfly valve, manual

Item number: 88929880
Description
Type 497 Butterfly valve body with manual operator
DN 250 DN 250
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 P Stainless steel, PFA encapsulated, FDA approval
Seat (liner) PF PTFE/FPM
Control function 0 Manually operated
Operator version GB232 Gearbox, aluminium die-cast housing
Type of design 7042 Gearbox prepared for limit switch mounting

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 497 Edessa PTFE seal butterfly valve is manually operated. It has a metal hand lever or gearbox depending on customer requirements. 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 1200 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
  • Lockable hand lever
  • Optional stainless steel hand lever