表示吊盖
2.在正常情况下,吊盖与通头同口径,如特殊要求可特制
3.通头一般为圆柱管螺纹G1/2〃,G3/4〃 G1〃如特殊要求可特制
标注举例;
1.BHD51-3/4B含义;BHD51隔爆型接线盒,管螺纹为G3/4〃直二通平盖
2.BHD51-1/2J含义;BHD51隔爆型接线盒,管螺纹为G1/2〃直二通吊盖
Note;1.○horzontal cover ◎hung cover
2.Generally the diameter of entry is equal to that of hung cover hole special requirement can be available
3.The entry is often made as pipe thread G1/2〃,G3/4〃 G1〃also special requirement can be made
For E