Shenxay portlashdan himoyalangan
The explosion-proof classification of CT4 equipment surpasses that of BT4 equipment.
| Sinf va daraja | Yonish harorati va guruhi | |||||
|---|---|---|---|---|---|---|
| - | T1 | T2 | T3 | T4 | T5 | T6 |
| - | T＞450 | 450≥T＞300 | 300≥T＞200 | 200≥T＞135 | 135≥T＞100 | 100≥T＞85 |
| I | Metan | |||||
| IIA | Etan, Propan, Aseton, Fenetil, Ene, Aminobenzol, Toluol, Benzol, Ammiak, Karbon monoksit, Etil asetat, Sirka kislotasi | Butan, etanol, Propilen, Butanol, Sirka kislotasi, Butil Ester, Amil asetat sirka angidridi | Pentan, Geksan, Geptan, Dekan, Oktan, Benzin, Vodorod sulfidi, Siklogeksan, Benzin, Kerosin, Dizel, Neft | Eter, Asetaldegid, Trimetilamin | Etil nitrit | |
| IIB | Propilen, Asetilen, Siklopropan, Koks gazi | Epoksi Z-alkan, Epoksi propan, Butadien, Etilen | Dimetil efir, Izopren, Vodorod sulfidi | Dietileter, Dibutil efir | ||
| IIC | Suv gaz, Vodorod | Asetilen | Uglerod disulfidi | Etil nitrat | ||
BT4 is classified as a Class B temperature group, where the maximum surface temperature of T4-rated devices does not exceed 135°C. CT4 holds a Class C explosion-proof rating, comparable to BT4, and is suitable for environments with hazardous gases such as hydrogen and acetylene, maintaining a maximum surface temperature of 135°C.
Scope of Use
BT4 is suitable for common gases including methane, etan, neft, va vodorod sulfide.
CT4 encompasses a broader range of less common portlovchi gazlar, such as hydrogen and water gas at the CT1 level, acetylene at the CT2 level, and carbon disulfide at the CT4 level.