Page 41 - New Supercatalog Color.indd

SEO Version

C-40
"M" and "Y" Data
ST-706
1/16" 11.4*
4,800
1/8" 22.0*
6,500
3000
1/16"
4.2
3,050
1/8"
5.2
4,400
3123 / 3125
1/16"
2.0
2,500
1/8"
2.0
2,500
3124
1/16"
2.0
2,500
(Wire-inserted) 1/8" 2.0
2,500
3125SS
1/16"
6.5
3,300
1/8" 11.8*
5,900
3125TC
1/16"
2.6
2,500
1/8"
6.0
3,000
3200 / 3400
1/16"
3.5
2,100
1/8"
6.6
3,000
3300
1/16"
2.1
3,050
1/8"
4.0
3,500
3500
1/16"
5.0
2,750
1/8"
5.0
3,500
3504
1/16"
3.0
1,650
1/8"
2.5
3,000
3/16"
2.5
3,000
1/4"
2.5
3,000
3510
1/16"
2.0
2,350
1/8"
2.0
2,500
3530
1/16"
2.8
1,650
1/8"
2.0
1,650
3535
1/4"
2.0
3,000
3540
1/16"
3.0
1,700
1/8"
3.0
2,200
3/16"
2.0
2,200
1/4"
2.0
2,500
3545
1/16"
2.6
1,500
1/8"
2.0
2,200
3/16"
2.0
2,200
1/4"
7.0
3,700
(in envelope)
1/8"
2.0
800
HP 3560
1/16"
5.0
3,500
1/8"
5.0
4,000
HP 3561
1/16"
5.0
3,500
1/8"
5.0
4,000
3565
1/16"
2.8
1,400
1/8"
3.7
2,300
3/16" 5.5
2,800
1/4"
6.0
2,800
3591
1/16"
4.3
1,650
1/8"
2.0
1,650
3594
1/16"
3.0
1,650
1/8"
3.0
2,500
3700
1/16"
3.5
2,800
1/8"
6.7
4,200
IFG
®
5500
1/16"
6.6
2,600
1/8"
6.6
3,300
IFG
®
5507
1/16"
3.5
2,400
1/8"
5.5
3,900
9800
1/16"
3.5
2,350
1/8"
8.0
3,200
9850
1/16"
6.5
2,550
1/8"
8.0
2,800
G-9900
1/16"
4.5
4,100
1/8"
6.0
4,100
STRESS
SAVER
®
370
1/8"
2.0
400
Style
Thickness M
Y (psi)
* These M values, based on ambient temperature leakage with nitrogen,
are high. Field experience has shown that lower values would be work-
able in elevated temperatures. Consult Applications Engineering.
Style
Thickness M
Y (psi)
Gasket Constants
Style Thickness Gb
a
Gs
S100
S1000
S3000
S5000
S10000
Tpmin
Tpmax
3123
1/16"
970
0.384
0.05
5,686
13,765
20,989
25,537
33,325
—
—
3125SS
1/16"
816
0.377
0.066
4,631
11,033
16,694
20,240
26,284
—
—
3125TC
1/16"
1400
0.324
0.01
6,225
13,126
18,738
22,110
27,678
—
—
3500
1/16"
949
0.253
2.60E+00
3,043
5,448
7,194
8,187
9,756
373
16,890
1/8"
1980
0.169
3.93E-01
4,313
6,365
7,663
8,354
9,393
223
25,375
3504
1/16"
183
0.357
4.01E-03
947
2,155
3,190
3,828
4,903
3,097
14,817
1/8"
1008
0.221
2.23E+00
2,793
4,649
5,928
6,638
7,739
141
72,992
3510
1/16"
289
0.274
6.61E-11
1,021
1,918
2,592
2,981
3,605
11,881
25,501
1/8"
444
0.332
1.29E-02
2,048
4,399
6,336
7,507
9,449
1,770
17,550
3535
3/8"
430
0.286
1.69E-09
1,605
3,101
4,245
4,913
5,991
373
3540
1/16"
550
0.304
7.64E-01
2,230
4,491
6,272
7,326
9,044
973
23,670
1/16"
162.1
0.379
1.35E-09
927
2,217
3,361
4,079
5,303
18,209
61,985
3545
1/8"
92.48
0.468
2.50E-03
799
2,349
3,930
4,992
6,907
4,460
53,307
3/16"
628
0.249
7.93E-05
1,977
3,507
4,611
5,236
6,222
373
3561
1/16"
72.3
0.466
2.16E-01
618
1,808
3,016
3,827
5,286
1,688
21,755
3591
1/16"
35
0.582
1.90E-04
517
1,975
3,745
5,041
7,547
1,410
29,194
3594
1/16"
151
0.41
1.64E-05
998
2,564
4,023
4,961
6,591
10,318
41,724
1/8"
66
0.523
4.98E-06
739
2,462
4,373
5,712
8,208
6,308
24,174
3700
1/8"
1,318
0.258
6.00E-01
4,324
7,833
10,400
11,865
14,188
373
—
5500
1/16"
1,247
0.249
1.10E+01
3,925
6,964
9,155
10,397
12,356
373
—
9850
1/16"
1,591
0.239
9.30E+00
4,783
8,292
10,782
12,182
14,377
141
110,005
9900
1/16"
2,322
0.133
1.80E+01
4,284
5,819
6,735
7,208
7,904
199
128,434
ST-706
1/16"
2,455
0.267
6.22E-01
8,396
15,526
20,818
23,860
28,711
—
—
"M" and "Y" data are to be used
for flange designs only as specified in
the ASME Boiler and Pressure Vessel
Code Division 1, Section VIII, Appendix
2. They are not meant to be used as
gasket seating stress values in actual
service. Our bolt torque tables give
that information and should be used as
such.
"M" - Maintenance Factor
A factor that provides the additional
preload needed in the flange fasteners
to maintain the compressive load on a
gasket after internal pressure is applied
to a joint. The net operating stress on a
pressurized gasket should be at least
(m) x (design pressure, psi).
"Y" - Minimum Design
Seating Stress
The minimum compressive stress
in pounds per square inch (or bar) on
the contact area of the gasket that is
required to provide a seal at an internal
pressure of 2 psig (0.14 bar).
Note: For a 5" OD gasket at 800 psig, Tp100 = 102ml
/ min. leakage,
Tp1,000 = 1.02ml
/ min. leakage, Tp10,000 = 0.01 ml
/ min. leakage.
Gb = stress at which seal is initiated; "a" = the slope of the log/log tightness
curve; Gs = intersection of the unload curve with the vertical axis (Tp1).