BNG系列防爆挠性连接盒（ⅡB、ⅡC）产品特点1、具有耐燃、耐腐蚀，耐水，耐老化，挠性良好，结构牢固，工作可靠等优点。2、特殊规格可根据用户要求***。适用范围1、***性气体环境***场所：1区、2区。2、***性气体环境：ⅡA、ⅡB、ⅡC。3、温度组别：T1T6。*可根据用户要求制造粉尘防爆。型号含义主要技术参数型号管通径（mm）接头管螺纹长度（mm）***小弯曲半径（mm）防爆标志BNG-15×700G1/2151/270080ExdⅡBExdⅡCDIPBNG-15×1000G1/2151/2100080BNG-20×700G3/4203/4700110BNG-20×1000G3/4203/41000110BNG-25×700G1251700145BNG-25×1000G12511000145BNG-32×700G/43211/4700180BNG-32×1000G/43211/41000180BNG-40×700G/24011/2700210BNG-40×1000G/24011/21000210BNG-50×700G2502700250BNG-50×1000G25021000250BNG-50×1200G25021200250BNG-50×1400G25021400250BNG-70×700G2/27021/2700350BNG-70×1000G2/27021/21000350BNG-70×1200G2/27021/21200350BNG-70×1400G2/27021/21400350BNG-80×700G3803700400BNG-80×1000G38031000400BNG-80×100G38031200400BNG-80×1400G38031400400)