IIS Manufactures & Supplies Flange Bolting Washers
IIS Flange Washer are design relative to most Belleville spring designs is that the OD/ID ratio is small to fit standard flanges. IIS Flange Washer prevent bolt tension loss due to :
• Differential Thermal Expansion
• High Temperature Bolt Creep
• Packing and Gasket Relaxation
• Vibration.
H13 Tool Steel is the main material for this product group, with a working temperature to 1000°F. Materials, such as 17-7 PH Stainless Steel and INCONEL 718 and X-750 Alloys, are also available. H13 flange bolting is available at 30,000, 4000, and 60,000 psi bolt stress.
Bolt Size |
Dimensions in MM |
WS.NO. |
SAP CODES |
||||
|
Outer Dia. (De) |
Inner Dia. (Di) |
Thickness (t) |
Height (lo) |
Cone Height (ho) |
|
|
1/2" |
25.70 |
13.46 |
3.05 |
3.38 |
0.33 |
9500 |
FB25.7X13.46X3.05H13 |
|
25.70 |
13.46 |
3.56 |
3.86 |
0.30 |
9501 |
FB25.7X13.46X3.56H13 |
|
25.70 |
13.46 |
3.81 |
4.32 |
0.28 |
3997 |
FB25.7X13.46X3.81H13 |
5/8" |
29.16 |
16.28 |
3.71 |
4.06 |
0.36 |
9502 |
FB29.16X16.28X3.7H13 |
|
29.16 |
16.28 |
4.34 |
4.67 |
0.33 |
9503 |
FB29.16X16.28X4.3H13 |
|
29.16 |
16.28 |
4.90 |
5.21 |
0.30 |
3998 |
FB29.16X16.28X4.9H13 |
3/4" |
34.77 |
19.33 |
4.55 |
4.95 |
0.41 |
9504 |
FB34.77X19.33X4.5H13 |
|
34.77 |
19.33 |
5.44 |
5.79 |
0.36 |
9505 |
FB34.77X19.33X5.4H13 |
|
34.77 |
19.33 |
6.12 |
6.45 |
0.33 |
3999 |
FB34.77X19.33X6.1H13 |
7/8" |
40.34 |
22.66 |
5.26 |
5.74 |
0.48 |
9506 |
FB40.34X22.66X5.2H13 |
|
40.34 |
22.66 |
6.25 |
6.68 |
0.43 |
9507 |
FB40.34X22.66X6.2H13 |
|
40.34 |
22.66 |
7.16 |
7.54 |
0.38 |
4000 |
FB40.34X22.66X7.1H13 |
1" |
45.92 |
25.93 |
5.79 |
6.40 |
0.61 |
9508 |
FB45.92X25.93X5.7H13 |
|
45.92 |
25.93 |
7.04 |
7.54 |
0.51 |
9509 |
FB45.92X25.93X7H13 |
|
45.92 |
25.93 |
8.33 |
8.74 |
0.41 |
4002 |
FB45.92X25.93X8.3H13 |
1-1/8" |
51.38 |
29.11 |
6.71 |
7.34 |
0.64 |
9510 |
FB51.38X29.11X6.7H13 |
|
51.38 |
29.11 |
8.15 |
8.69 |
0.53 |
9511 |
FB51.38X29.11X8.1H13 |
|
51.38 |
29.11 |
9.63 |
10.06 |
0.43 |
4003 |
FB51.38X29.11X9.6H13 |
1-1/4" |
58.62 |
32.31 |
7.52 |
8.28 |
0.76 |
9512 |
FB58.62X32.31X7.5H13 |
|
58.62 |
32.31 |
9.14 |
9.78 |
0.64 |
9513 |
FB58.62X32.31X9.1H13 |
|
58.62 |
32.31 |
10.49 |
11.05 |
0.56 |
9580 |
FB58.62X32.31X10H13 |
1-3/8" |
62.69 |
35.59 |
8.46 |
9.19 |
0.74 |
9514 |
FB62.69X35.59X8.4H13 |
|
62.69 |
35.59 |
10.03 |
10.69 |
0.66 |
9515 |
FB62.69X35.59X10H13 |
|
62.69 |
35.59 |
11.51 |
12.09 |
0.58 |
4005 |
FB62.69X35.59X11H13 |
1-1/2" |
68.02 |
38.76 |
9.30 |
10.08 |
0.79 |
9525 |
FB68.02X38.76X9.3H13 |
|
68.02 |
38.76 |
11.15 |
11.84 |
0.69 |
9526 |
FB68.02X38.76X11H13 |
|
68.02 |
38.76 |
12.93 |
13.51 |
0.58 |
4006 |
FB68.02X38.76X12H13 |
1-5/8" |
74.96 |
41.86 |
10.06 |
10.97 |
0.91 |
9527 |
FB74.96X41.86X10H13 |
|
74.96 |
41.86 |
12.24 |
13.00 |
0.76 |
9528 |
FB74.96X41.86X12H13 |
74.96 |
41.86 |
13.94 |
14.63 |
0.69 |
9581 |
FB74.96X41.86X13H13 |
|
1-3/4" |
80.47 |
45.11 |
10.90 |
11.86 |
0.97 |
9529 |
FB80.47X45.11X10H13 |
80.47 |
45.11 |
13.21 |
14.02 |
0.81 |
9530 |
FB80.47X45.11X13H13 |
|
80.47 |
45.11 |
15.19 |
15.90 |
0.71 |
9582 |
FB80.47X45.11X15H13 |
|
1-7/8" |
86.13 |
48.29 |
11.79 |
12.80 |
1.02 |
9531 |
FB86.13X48.29X11H13 |
86.13 |
48.29 |
14.22 |
15.09 |
0.86 |
9532 |
FB86.13X48.29X14H13 |
|
86.13 |
48.29 |
15.04 |
15.85 |
0.81 |
4009 |
FB86.13X48.29X15H13 |
|
2" |
91.41 |
51.46 |
12.73 |
13.77 |
1.04 |
9534 |
FB91.41X51.46X12H13 |
91.41 |
51.46 |
15.06 |
16.00 |
0.94 |
9535 |
FB91.41X51.46X15H13 |
|
91.41 |
51.46 |
16.21 |
17.04 |
0.84 |
9583 |
FB91.41X51.46X16H13 |
|
2-1/4" |
102.59 |
57.96 |
14.15 |
15.37 |
1.22 |
9537 |
FB102.59X57.96X14H13 |
102.59 |
57.96 |
17.20 |
18.21 |
1.02 |
9538 |
FB102.59X57.96X17H13 |
|
102.59 |
57.96 |
18.64 |
19.53 |
0.89 |
4011 |
FB102.59X57.9X1813 |
|
2-1/2" |
113.84 |
64.24 |
15.90 |
17.22 |
1.32 |
9540 |
FB113.84X64.24X15H13 |
113.84 |
64.24 |
19.23 |
20.35 |
1.12 |
9541 |
FB113.84X64.24X19H13 |
|
113.84 |
64.24 |
20.57 |
21.59 |
1.02 |
4012 |
FB113.8X64.24X20H13 |
|
2-3/4" |
124.94 |
70.54 |
17.65 |
19.08 |
1.42 |
9543 |
FB124.94X70.54X17H13 |
124.94 |
70.54 |
21.56 |
22.73 |
1.17 |
9544 |
FB124.94X70.54X21H13 |
|
124.94 |
70.54 |
22.66 |
23.77 |
1.12 |
4013 |
FB124.9X70.54X22H13 |
|
3" |
136.12 |
76.89 |
19.18 |
20.75 |
1.57 |
9546 |
FB136.12X76.89X19H13 |
136.12 |
76.89 |
23.57 |
24.84 |
1.27 |
9547 |
FB136.12X76.89X23H13 |
|
136.12 |
76.89 |
25.30 |
26.44 |
1.14 |
4014 |
FB136.1X76.89X25H13 |
|
3-1/4" |
137.08 |
83.64 |
26.39 |
27.51 |
1.12 |
9549 |
FB137.08X83.64X26H13 |
3-1/2" |
155.70 |
89.54 |
30.38 |
31.55 |
1.17 |
9550 |
FB155.7X89.54X30H13 |
3-3/4" |
169.29 |
96.98 |
32.39 |
33.71 |
1.32 |
9551 |
FB169.29X96.98X32H13 |
4" |
181.10 |
102.87 |
38.10 |
39.57 |
1.47 |
9552 |
FB181.1X102.87X38H13 |
