Butterfly valve 498

electrically-actuatedfor controlshut-off

The GEMÜ 498 Edessa PTFE seated butterfly valve is motorized. Various metal or plastic on/off or control actuators are available. Disc and shaft are one-piece, body and seat are available in different designs. The butterfly valve is available in nominal sizes DN 40 - 900 (1½? - 36?) and in wafer and lugged body versions. Suitable for chemically corrosive media 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 Wide choice of motorized actuator types Installation lengths: ISO 5752/20 | EN 558-1/20 | API 609 category A Body configurations: Lug | Wafer Connection types: Flange (lug) | Flange (wafer) Connection standards: AS | ASME | DIN | EN | ISO | JIS Housing materials: 1.4404, block material | EN-GJS-400-18-LT, SG iron material | S355J2 + N, cast steel material | VE Duroplast, reinforced Liner materials: PTFE / silicone | PTFE TFM™ / FKM | PTFE TFM™/EPDM | PTFE TFM™/silicone | PTFE/EPDM | PTFE/FKM Disc materials: 1.4404 (316L), forged material | 1.4469, Duplex cast steel material | 2.4602 (alloy 22), block material | 3.7035, titan Supply voltage: 100 - 120 V AC, 50/60 Hz | 12 - 24 V AC/DC | 220 - 240 V AC, 50/60 Hz | 380 - 480 V AC, 50/60 Hz Operating time 90°: 4 to 100 s Protection class: IP 65, 66, 67, 68 Conformities: ATEX | CSA | EAC | FDA | SIL | TA Luft (German Clean Air Act) | USP