一、适用范围
　　◆爆炸性气体环境：1区、2区
　　◆场所中危险气体或蒸气：IIA、IIB、IIC
　　◆温度组别：T1-T6
　　◆户内、户外（IP54、可按用户要求达到IP65)

Applying scope
　　◆Explosive gas atmospheres:Zone1&2
　　◆Dangerous gases or vapors zone:IIA、IIB、IIC
　　◆Temperature classes:T1-T6
　　◆Indoor and outdoor(IP54,It could be designed as IP65 according to use′s requirements)

二、型号含义Type designation

三、主要技术参数Main Technical Parameters 

型号Type	螺纹公称直径 (mm) thread nominal dia.(mm)	长度(mm) Length(mm)	最小曲率半径 (mm) Min.radius  of curvature (mm)	适用电压 (V) Voltage (V)	防爆标志 Ex-marking	承受水压 (MPa) Water pressure (MPa)
NG□-13×700□□	15	700	80	220/380	Exd IICT6 Exd IIBT6	1
NG□-20×700□□	20	700	110
NG□-25×1000□□	25	1000	145
NG□-32×1000□□	32	1000	180
NG□-38(40)×1000□□	40	1000	210
NG□-50×1200□□	50	1200	270
NG□-63(70)×1400□□	70	1400	340
NG□-75(80)×1400□□	80	1400	400
NG□-100×1400□□	100	1400	520

注：
　　1、长度可根据要求定制。
　　2、螺纹可按现场需要制成公制螺纹、NPT螺纹及其它。
Note: 
　　1、The length can be made specially by use's requirements.
      2、It can be made screws into the metric system.NPT and according to site condition.

     本产品具有耐燃、耐油、耐腐蚀、耐水、耐磨、耐老化、挠性良好、结构牢固、可作为防爆电器设备进出线或钢管布线弯曲难度较大的场所连接之用。
　　活接头螺纹加工精度不低于H7/g6。
　　This product is flame-resitant,oil-resitant、water-resistant、wear-resistant、aging-resistant、well flexble、soild structured、reliable performance.It is used for connecting inlet and outlet of explasion protected electrical apparatus or those places where the curvature is to small in wiring with conduit.
　　Machining precision of thread is not less than H7/g6.