SLV
Electric Center-Line Butterfly Valve
Center-line resilient-seated butterfly valve with electric actuator (on-off or 4–20 mA modulating), DN40–DN400, DIN/ISO 5211 mounting; body and seat shared with the center-line series.
Actuator
| Control type | on-off type (active feedback / passive feedback), intelligent regulation type (4-20mA input/output) |
|---|---|
| Working power | AC220V / AC380V / DC24V |
| Connection standard | DIN / ISO 5211 |
| Size range | DN40 ~ DN400 |
Specifications (shared with center-line series)
| Connection type | wafer |
|---|---|
| Leakage class | RATE A EN 12266-2 (zero leakage) |
Materials (shared with center-line series)
| Valve body | gray cast iron / ductile cast iron / carbon steel / stainless steel |
|---|---|
| Valve disc | SS 304 / SS 316 / ductile cast iron / Ni Al alloy |
| Valve stem | SS 410 / SS 304 / SS 316 / SS 630 |
| Valve seat | NBR / EPDM / PTFE / VITON / FKM / silicone rubber |
