1. For the dangerous sites with explosive air mixture:
1 division、2 division;
2. Flammable gas, steam class:ⅡA、ⅡB、ⅡC;
3. Temperatures classification:T1~T6;
4. Indoor and outdoor (IP54).
1. For connecting steel pipe wiring pipline;
2. Made of quality carbon steel with Zinc surface-plating;
3. Need to change diameter or metric system thread
NPT thread can be made specially.