Model 705
Ductil Iron Medium Pressure Flexible Coupling
The Model 705 is designed for connection of grooved medium pressure pipe systems.
Sizes-inches/DN : 3/4 to 12inch(DN20 to DN300)
Rated working pressure : 600psi(42bar) SCH40S cut groove only
Material Sepecifications
Housings :
◆Ductile Iron to ASTM A536
Surface Finish :
◆Antirust paint red of blue
◆Hot dip zinc galvanized
◆Epoxy power
◆Dacromet
◆TRFLOW(PTFE)
◆RilsanPA11
Rubber Gaskets:
The gasket seals is C-shaped, made of standard gasket EPDM(ethylene propylene diene monomer) for cold water,hot water,rare acid,oil-free air and multiple chemical product(-50~150℃). It is not suitable for medium like petroleum.
Bolts & Nuts:
◆Round-head,elliptoid-neck,carriage bolts,type carbon iron covered with zinc or dacromet
Nominal
Size
mm
inch
25
1
32
1.25
40
1.5
50
50
2
65
2.5
65
80
3
100
100
4
125
125
5
150
150
6
200
8
250
10
300
12
Pipe O.D
A
mm
inch
33.40
1.315
42.20
1.660
48.30
1.900
57.00
2.244
60.30
2.375
73.00
2.875
76.10
3.000
88.90
3.500
108.00
4.250
114.30
4.500
133.00
5.250
139.70
5.500
159.00
6.259
168.30
6.625
219.10
8.625
273.00
10.750
323.90
12.750
Rate working
Pressure
Pipe End
separation
Dimensions
Weight
psi
bar
600
41.34
600
41.34
600
41.34
600
41.34
600
41.34
600
41.34
600
41.34
600
41.34
600
41.34
600
41.34
600
41.34
600
41.34
600
41.34
600
41.34
600
41.34
600
41.34
600
41.34
mm
inch
0-1.6
0-0.06
0-1.6
0-0.06
0-1.6
0-0.06
0-1.6
0-0.06
0-1.6
0-0.06
0-1.6
0-0.06
0-1.6
0-0.06
0-1.6
0-0.06
0-1.6
0-0.06
0-1.6
0-0.06
0-1.6
0-0.06
0-3.2
0-0.13
0-3.2
0-0.13
0-3.2
0-0.13
0-3.2
0-0.13
0-3.2
0-0.13
0-3.2
0-0.13
mm
inch
61
2.402
68
2.677
74
2.913
85
3.346
87
3.425
98
3.858
102
4.01
114
4.488
141
5.551
147
5.787
166
6.535
175
6.890
194
7.638
203
7.992
263
10.354
343
13.504
394
15.512
B
mm
inch
108
4.252
117
4.606
122
4.803
130
5.118
133
5.236
144
5.669
150
6.906
178
7.008
198
7.795
204
8.031
238
9.370
256
10.472
281
11.063
355
13.976
440
17.323
486
19.134
246.2
9.693
C
mm
inch
45
1.772
45
1.772
48
1.890
48
1.890
48
1.890
48
1.890
48
1.890
54
2.126
54
2.126
54
2.126
54
2.126
54
2.126
54
2.126
58
2.283
59
2.323
67
2.638
65
2.559
kgs
lbs
0.538
1.184
0.558
1.228
0.621
1.367
0.600
1.320
0.663
1.459
1.919
0.944
2.077
2.077
1.084
2.385
1.394
3.067
1.323
2.911
1.800
3.960
2.000
4.400
2.200
4.840
2.300
5.060
4.400
9.680
7.800
17.16
10.50
23.10