couplings

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The Couplings are designed for gas and pipelines , As a wide tolerance system it will fit most standard pipe materials and therefore dramatically reduces the number of dedicated Couplings which need to be stocked for maintenance purposes , It is suitable for steel , GRP, PVC, PE, Ductile Iron , Cast Iron and Asbestors Cement . When connecting PE pipes , It is important that pipe inserts are fitted to the PE pipes .
1) All the couplings are assembled by " D " bolts . 2", 2 1/2", 3", 4", 5", 6", 7" & 8" have four bolt holes. 10" & 12" have six bolt . holes, 14" & 16" have eight bolt holes, 18", 20" & 24" are with ten bolt holes .
2) Bolts ,Nuts and Washers are in carbon steel Grade 4.8 with zinc plated , dacromet or according to customer's request.
3) Body material is GGG500-7 .
4) Fusion bonded epoxy powder coating in blue, black or red or according to customer's request .
5) Gaskets material : E.P.D.M. , NBR or SBR .
Specification Unit Weight Sealing Ranges(mm)
inches mm kgs
2" 50 3.6 59~73
2 1/2" 65 4.50 72~85
3" 80 4.83 88~103
4" 100 5.51 108~128
5" 125 7.74 132 ~154
6" 150 8.32 159~182
7" 175 11.30 192~209
8" 200 9.95 218~235
10" 25 0 14.50 271~289
12" 300 18.62 322~340
14" 350 26.00 374~391
16" 400 28.85 417~437
18" 450 33.40 480~500
20" 500 50.00 526~546
24" 600 54.10 630~65 0

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