Selection of Drag Chains
1.The hole diameter of the inner cavity of supporting board D1= d+0.1d(round number). Where, d=outside diameter of cables, wires, liquid/gas hoses.
2.The height of the supporting board and the model number TLXX of drag chains depends on the max. hole diameter of the inner cavity of the supporting.
3.The bend radius depends on the functions of the drag chains.
(1)When there is a large load from larger calibre or cables on the drag chains, high strength model I supporting board (integral) should be used.
(2)When the size of the connectors are greater than that of the hole diameter of the inner cavity of supporting board or frequent assembly or dismantal operations are required, type III supporting board (frame type) can be used.
4.The width of supporting board B1 can be decided according to the quantity of the cables installed so that the width of the drag chain B can be arrived.
5.When limited by locations or environment and if bracing board with steel straps are needed, please contact our company for solutions.
Drag chains with 3 chain board
One or more drag chain boards can be installed on a wider drag chain, because the max. length of the supporting board is 600mm-650mm. This arrangement can also improve the stability of the narrower chains. In this way, the conduit and the cables can be separated from one another by a third chain board.
Note: Parameters D,12,e be used for GLE type and f,j,k for TL type.
Elastic status for hydraulic pipes
Note that the pressure of a hydraulic pipe may extend or contract downward, so the elasticity should be taken into consideration, especially under high pressure or with long length.