Qaysi biri yuqori portlashdan himoyalangan darajaga ega, BT4 yoki CT4

CT4 uskunasining portlashdan himoyalangan tasnifi BT4 uskunasidan oshib ketadi.

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 B sinfidagi harorat guruhi sifatida tasniflanadi, bu erda T4 nominalli qurilmalarning maksimal sirt harorati 135 ° S dan oshmaydi. CT4 portlashdan himoyalangan C sinfiga ega, BT4 bilan solishtirish mumkin, 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 sulfid.

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.