Explosion-Proof Flexible Connecting Pipe Model Meanings and Examples

Meaning:

Models such as BNG and NGD are available, coming in various sizes like DN15, DN20, DN25, DN32, DN40, DN50, etc. Standard lengths include 500mm, 700mm, and 1000mm, with custom lengths available to meet specific site requirements.

For instance, the model BNG (NGD)-B-G3/4×1000 features BNG or NGD to denote the type of explosion-proof flexible conduit. The ‘B’ signifies one end with internal threads and the other with external threads, ‘G3/4’ indicates the pipe thread size of 3/4, and ‘1000’ specifies the conduit length as 1000 millimeters.

Example:

Model	Pipe diameter (DN)	Joint pipe thread (G ")	Length (mm)	Minimum bending radius (mm)	Explosion proof signs
BNG-700×G½”	15	½	700	80	Exd II
BNG-1000×G½”	15	½	1000	80
BNG-700×G¾”	20	¾	700	110
BNG-1000×G¾”	20	¾	1000	100
BNG-700×G1”	25	1	700	145
BNG-1000×G1”	25	1	1000	145
BNG-700×G1 1/4”	32	1¼	700	180
BNG-1000×G1 1/4”	32	1¼	1000	180
BNG-700×G1 1/2”	40	1½	700	210
BNG-1000×G2 1/2”	70	2½	1000	350
BNG-700×G2”	50	2	700	250
BNG-1000×G2”	50	3	1000	250
BNG-700×G2 1/2”	70	2½	700	350
BNG-1000×G2 1/2”	70	2½	1000	350
BNG-1000×G2 1/2”	70	2½	1000	350
BNG-1000×G3”	80	3	1000	400
BNG-700×G4”	100	4	700	500
BNG-1000×G4”	100	4	1000	500

This guide provides insights into the nomenclature and options for explosion-proof flexible conduits, aimed at facilitating informed purchasing decisions.