Model 75N
Plastic Flexible Coupling
The Model 75N is designed on the purpose of solving the corrosion problems happened in low pressure piping systems. Our couplings are manufactured in good quality reinforced nylon injected through high temperature. Therefore our couplings have high strength and toughness,and very good corrosion resistance performance. They have been widely used in ultrafiltration(UF) membrane device in the system of water desalination.
Sizes-inches/DN : 1 to 8inch(DN25 to DN200)
Rated working pressure : 300psi(21bar)
Material Specifications
Housings :
◆Nylon
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:
◆Stainless steel track bolts and nuts, international standard models of carriage bolts.
Nominal
Size
mm
inch
25
1
32
1.25
40
1.5
50
2
65
2.5
65
80
3
100
4
125
5
150
6
200
8
Pipe O.D
A
mm
inch
33.40
1.315
42.20
1.660
48.30
1.900
60.30
2.375
73.30
2.875
76.10
3.000
88.90
3.500
114.30
4.500
139.70
5.500
168.30
6.625
219.10
8.625
Rate working
Pressure
Pipe End
separation
Dimensions
Weight
psi
bar
300
20.67
300
20.67
300
20.67
300
20.67
300
20.67
300
20.67
300
20.67
300
20.67
300
20.67
300
20.67
300
20.67
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
mm
inch
61
2.402
73
2.874
79
3.110
91
3.583
104
4.094
108
4.252
125
4.921
157.4
6.197
192
7.559
227
8.937
281
11.063
B
mm
inch
95
3.740
130
5.118
121
4.764
135
5.315
145
5.709
148
5.827
166
6.535
207
8.150
248
9.764
282
11.102
244
9.606
C
mm
inch
44
1.732
44
1.732
44
1.732
45
1.772
45
1.772
45
1.772
45
1.772
52
2.047
52
2.047
52
2.047
64
2.520
kgs
lbs
0.232
1.364
0.511
0.260
0.572
0.351
0.773
0.417
0.918
0.452
0.995
0.500
1.100
0.531
1.169
0.600
1.320
1.150
2.530
1.610
3.542
6.710