An SG iron (GGG-40.3) control valve for neutral gases and liquids in industrial plants. It covers DN 15-200 at PN 16, 25 and 40, with an electric or pneumatic actuator.
| Body Material | SG iron (spheroidal graphite cast iron) |
| Size | DN 15 - DN 200 |
| Working Pressure | PN 16, PN 25, PN 40 |
| End Connection | Flanges according to EN 1092-2 Type 21 |
| Leakage Class | EN 1349 - seat leakage IV L1 (≤ 0.01% of nominal flow rate) |
| Application Range | Neutral gaseous and liquid media, 0 to +180 °C (with stem heater down to -10 °C; with stuffing box extension or stainless steel bellows -10 °C to +350 °C) |
| Body Material (detail) | SG iron (spheroidal graphite) GGG-40.3 / EN-JS1024 |
| Plug/Stem Material | CrNi steel 1.4057 / CrMo steel 1.4122 |
| Stem Sealing | EPDM, max. 180 °C (alternative stem sealing up to 350 °C) |