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1. Ductile Iron standard rigid/flexible  coupling

Nominal size(mm/in):

25/1  32/1¼ 40/1½ 50/2 65/2½ 65/2½ 80/3 100/4 100/4 125/5 125/5 125/5 150/6 150/6 150/6 200/8 250/10 300/12

Pipe O.D(mm/in):

33.7/1.327 42.4/1.669 48.3/1.9 60.3/2.375 73.0/2.875 76.1/3 88.9/3.5 108/4.25 114.3/4.5  133/5.25  139.7/5.5 141.3/5.563 159/6.25 165.1/6.5 168.3/6.625 219.1/8.625 273/10.75  323.9/12.750

Working Pressure PSI/MPa: 300/2.07

Dimension  (mm/in)

A:56/2.20 64/2.52 70/2.76 84/3.30 97/3.81 98/3.86 111/4.37 133/5.24 139/5.47 159/6.26 167/6.57 166/6.54 189/7.44 193/7.60 194/7.64 252/9.92 313/12.32  372/14.64

B:98/3.85 104/4.09 110/4.33 125/4.92 137/5.39 139/5.47 155/6.10 186/7.32 190/7.48 215/8.46 223/8.78 224/8.82 242/9.53 246/9.69 252/9.92 322/12.68  396/15.59  456/17.95

C:45/1.77  49/1.93  50/1.96 60/2.36 62/2.44 63/2.48

2.Ductile Iron standard flexible coupling

Nominal size(mm/in):

50*32/2×1¼    50*40/2×1½    65*25/2½*1 65*32/2½×1¼ 65*40/2½×1½ 65*50/2½*2 65*25/2½*1 65*32/2½×1¼ 65*40/2½×1½ 65*50/2½*2 80*25/3*1 80*32/3×1¼ 80*40/3×1½ 80*50/3×2 80*65/3*2½ 100*25/4*1 100*32/4*1¼ 100*40/4×1¼ 100*50/4×2½ 100*65/4×2½ 100*80/4×3½ 125*50/5×2½ 125*65/5×2½ 125*80/5*3 125*100/5*4 125*100/5*4 150*65/6*2½ 150*80/6*3 150*100/6*4 150*65/6*2½ 150*65/6*2½ 150*80/6*3 150*100/6*4 150*125/6*5 150*125/6*5 200*65/8*2½ 200*80/8*3 200*100/8*4 200*125/8*5 200*150/8*6 200*150/8*6

Pipe O.D(mm/in):

60.3×42.4/2.375*1.669 60.3×48.3/2.375*1.9 73.0*33.7/2.875*1.327 73.0×42.4/2.875*1.669 73.0×48.3/2.875*1.9 73.0*60.3/2.875*2.375 76.1*33.7/3*1.327 76.1×42.4/3*1.669 76.1×48.3/3*1.9 76.1*60.3/3*2.375 88.9*33.7/3.5*1.327 88.9×42.4/3.5*1.669 88.9×48.3/3.5*1.9  88.9×60.3/3.5*2.375 88.9*76.1/3.5*3 114.3*33.7/4.5*1.327 114.3*42.4/4.5*1.669  114.3*48.3/4.5*1.9 114.3*60.3/4.5*2.375 114.3*76.1/4.5*3 114.3*88.9/4.5*3.5  139.7*60.3/5.5*2.375 139.7*73/ 5.5*2.875  139.7*88.9/5.5*3.5  139.7*114.3/5.5*4.5 141.3*114.3/5.563*4.5  165.1*73/6.5*2.875  165.1*88.9/6.5*3.5  165.1*114.3/6.5*4.5  168.3*73/6.625*2.875  168.3*76.1/6.625*3 168.3*88.9/6.625*3.5 168.3*114.3/6.625*4.5 168.3*139.7/6.625*5.5 168.3*141.3/6.625*5.563 219.1*76.1/8.625*3 219.1*88.9/8.625*3.5 219.1*114.3/8.625*4.5 219.1*139.7/8.625*5.5 219.1*165.1/8.625*6.625 219.1*168.3/8.625*6.625

Working Pressure PSI/MPa: 300/2.07