Model 77C
Stainless Steel High Pressure Flexible Coupling
The Model 77C is high pressure applications including reverse osmosis, desalination and
other specialty systems.
The Model 77C is available in strong and anti-corrosive alloys of Duplex CD3MN(2205),
Super Duplex CE8MN, CE3MN(2507).
The 77C features 316 bolts and silicone bronze heavy duty nuts to help prevent galling
during repetitive use.
Sizes-inches/DN : 3/4 to 12inch(DN20 to DN300)
Rated working pressure : 1200psi(83bar) SCH40S cut groove only
Material Specifications
Housings :
◆Super duplex 2507(CE3MN) to ASTM A890 Grade 5A
◆CE8MN to ASTM A890 Grade 2A
◆Duplex 2205(CD3MN) to ASTM A890 Grade 4A
◆Austenic 254SMO(CK3MCuN) to A743
◆Austenic 904L(CN2MCuN) to A351
◆Type 316 to ASTM A743 CF8M
◆Type 316L to ASTM A743 CF3M
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
◆Type 304 or 316 stainless steel track bolts ASTM A-193 B-8M
Nuts:
◆Type 304 or 316 stainless steel nuts ASTM A-193 B-8M Silicone bronze heavy duty nuts to ASTM B98 C65100 for option
Nominal
Size
mm
inch
20
0.75
25
25
1
32
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
Pipe O.D
A
mm
inch
26.70
1.050
32.00
1.260
33.40
1.315
38.00
1.496
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
141.30
5.563
159.00
6.259
168.30
6.625
219.10
8.625
Rate working
Pressure
Pipe End
separation
Dimensions
Weight
psi
bar
1200
82.68
1200
82.68
1200
82.68
1200
82.68
1200
82.68
1200
82.68
1200
82.68
1200
82.68
1200
82.68
1200
82.68
1200
82.68
1200
82.68
1200
82.68
1200
82.68
1200
82.68
1200
82.68
1200
82.68
1200
82.68
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
0-3.2
0-0.13
mm
inch
53
2.087
59
2.323
60
2.362
70
2.756
72
2.835
79
3.11
89
3.504
91
3.583
104
4.094
108.5
4.272
125
4.921
154
6.063
157.4
6.197
178
7.008
192
7.559
216
8.504
227
8.937
281
11.063
B
mm
inch
86
3.386
91
3.583
93
3.661
100
3.937
102
4.016
121
4.764
133
5.236
135
5.315
145
5.709
152
5.984
166
6.535
197
7.756
207
8.15
231
9.094
248
9.764
256
10.433
282
11.102
244
9.606
C
mm
inch
44
1.732
44
1.732
44
1.732
44
1.732
44
1.732
44
1.732
45
1.772
45
1.772
45
1.772
45
1.772
45
1.772
52
2.047
52
2.047
52
2.047
52
2.047
52
2.047
52
2.047
64
2.52
kgs
lbs
0.580
1.276
0.600
1.320
0.660
1.452
0.620
1.364
0.760
1.672
0.661
1.455
0.810
1.782
0.842
1.853
0.989
2.176
1.600
3.520
1.360
2.992
3.350
7.370
2.700
5.940
4.200
9.240
5.300
11.66
6.800
14.96
7.500
16.50
11.40
25.08