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
BDM-VIII-II Type Parameters and Dimensions
Constructed from high-quality carbon steel, brass, or stainless steel, this displacement-type cable clamping device features robust waterproofing. Its gland employs a single-layer sealing structure, with a threaded connection port at the cable entry end, making it suitable for armored cable entry.
| Thread Specifications | Maximum Cable Outer Diameter (Outgoing) | Cable Outer Diameter (Incoming) | Thread Length | Length (L) | Opposite Side/Maximum Outer Diameter S (φ) | Thread Specifications | ||||
| Imperial | American | Metric | Imperial | American | Metric | |||||
| G1/2" | NPT1/2 | M20x1.5 | 12 | 9~14 | 15 | 97 | 27/30 | G1/2" | NPT1/2 | M20x1.5 |
| G3/4" S | NPT3/4 S | M25x1.5 S | 18 | 98 | 34/37 | G3/4" S | NPT3/4 S | M25x1.5S | ||
| G3/4" | NPT3/4 | M25x1.5 | 14~19 | G3/4" | NPT3/4 | M25x1.5 | ||||
| G1" S | NPT1S | M32x1.5 S | 21 | 14~20 | 17 | 102 | 38/42 | G1" S | NPT1 S | M32x1.5S |
| G1" | NPT1 | M32x1.5 | 19~24 | 28/42 | G1" | NPT1 | M32x1.5 | |||
| G1 1/4" | NPT1 1/4 | M40x1.5 | 27 | 25~30 | 103 | 48/54 | G1 1/4" | NPT1 1/4 | M40x1.5 | |
| G1 1/2" S | NPT1 1/2 S | M50x1.5 S | 37 | 31~36 | 106 | 55/61 | G1 1/2" S | NPT1 1/2 S | M50x1.5S | |
| G1 1/2" | NPT1 1/2 | M50x1.5 | 35~39 | G1 1/2" | NPT1 1/2 | M50x1.5 | ||||
| G2"S | NPT2S | M63x1.5 S | 46 | 39~45 | 19 | 109 | 68/74 | G2" S | NPT2 S | M63x1.5S |
| G2" | NPT2 | M63x1.5 | 42~50 | G2" | NPT2 | M63x1.5 | ||||
| G2 1/2" S | NPT2 1/2 S | M75x1.5 S | 57 | 48~56 | 24 | 129 | 85/94 | G2 1/2" S | NPT2 1/2 S | M75x1.5S |
| G2 1/2" | NPT2 1/2 | M75x1.5 | 56~65 | G2 1/2" | NPT2 1/2 | M75x1.5 | ||||
| G3" S | NPT3 S | M90x1.5 S | 72 | 51~65 | 26 | 134 | 100/110 | G3" S | NPT3 S | M90x1.5S |
| G3" | NPT3 | M90x1.5 | 64~75 | G3" | NPT3 | M90x1.5 | ||||
| G4" S | NPT4 S | M115x2 S | 90 | 74~84 | 28 | 139 | 125/135 | G4" S | NPT4 S | M115x2S |
| G4" | NPT4 | M115x2 | 87~98 | G4" | NPT4 | M115x2 | ||||
| Explosion-Proof Marking | Protection Rating |
|---|---|
| Ex db IIC Gb, Ex eb IIC Gb, Ex ta IIIC Da | IP66 |
Product Features
1. Manufactured from high-quality carbon steel; materials can be customized to stainless steel or brass upon customer request;
2. Thread specifications can be specially fabricated or designed with different thread sizes at each end according to customer requirements.
Applicable Scope
1. Suitable for Zone 1 and Zone 2 locations in explosive gas environments;
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 IIIA, IIIB, and IIC explosive dust atmospheres;
5. Widely used for clamping and sealing cables in hazardous environments such as oil extraction, refining, chemical processing, and military applications.
