Explosion-Proof Stopping Plug BSFD

Model Meaning

Implementation Standard

GB/T3836.1、GB/T3836.2、GB/T3836.3、GB/T3836.31、IEC60079-0、IEC60079-1、IEC60079-7、IEC60079-31

Technical Parameter

Model	Thread Type and Specifications	Explosion-Proof Marking	Protection Rating	Corrosion Resistance Rating
BFSD	NPT1/2、NPT3/4、NPT1、NPT1 1/4、NPT1 1/2、NPT2、NPT2 1/2、NPT3、NPT4	Ex db IIC Gb, Ex eb IIC Gb, Ex tb IIIC Da	IP66	WF1 WF2
	M10×1.5、M12×1.5、M16×1.5、M18×1.5、M20×1.5、M25×1.5、M32×1.5、M40×1.5、M50×1.5、M63×1.5、M75×1.5 、M75×2、M90×1.5、M90×2、M100×1.5、M100×2、M110×1.5、M110×2、M115×1.5、M115×2	Ex db IIC Gb, Ex eb IIC Gb, Ex tb IIIC Da
	G1/2"、G3/4"、G1"、G11/4"、G1 1/2"、G2"、G2 1/2"、G3"、G4"	Ex db IIC Gb, Ex eb IIC Gb

Thread Specifications			L (mm)			L1 (mm)			C (mm)			ΦD (mm)
Imperial	Metric	US Standard	I	II	III	I	II	III	I	II	III	I	II	III
G1/2"	M20x1.5	NPT1/2	22	22	20	17	17	17	27	10	10	30	30	/
G3/4"	M25x1.5	NPT3/4	22	22	20	17	17	17	32	10	10	36	36	/
G1"	M32x1.5	NPT1	26	26	20	20	20	17	38	10	10	42	42	/
G1 1/4"	M40x1.5	NPT1 1/4	26	26	20	20	20	17	47	19	19	52	52	/
G1 1/2"	M50x1.5	NPT1 1/2	26	26	20	20	20	17	55	19	19	60	60	/
G2"	M63x1.5	NPT2	30	30	22	22	22	19	69	19	19	70	70	/
G2 1/2"	M75x1.5	NPT2 1/2	32	/	24	24	/	21	83	/	19	88	/	/
G3"	M90x1.5	NPT3	34	/	24	24	/	21	95	/	19	100	/	/
G4"	M115x2	NPT4	34	/	24	24	/	21	122	/	19	127	/	/

Product Features

1. Manufactured from materials such as Q235, H59, 304, 316, and ZL102, featuring a smooth and bright finish for easy installation and use;

2. Thread specifications can be customized to meet user requirements, including NPT, metric threads, and others.

Applicable Scope

1. Suitable for Zone 1 and Zone 2 locations in explosive gas atmospheres;

2. Suitable for Class IIA, IIB, and IIC explosive gas atmospheres;

3. Suitable for Zone 21 and Zone 22 explosive dust atmospheres;

4. Suitable for Class IIC, IIC, and IIC explosive dust atmospheres;

5. Widely used for cable sealing in hazardous environments such as oil extraction, refining, chemical processing, and military applications.