Rosemount 1495 - Page 65

Reference Manual
00809-0100-4792, Rev CA
August 2010
B-13
Rosemount 1495, 1496
Table B-10. Class 900#
1
/8-in. Thick Spiral Wound Gasket
Flange Size
in. (mm)
Number of Bolts Bolt Diameter
in. (mm)
Bolt Torque
ft.-lbs. (N-m)
2 (5.08) USE CLASS 1500#
2.5 (6.35) USE CLASS 1500#
3 (7.62) 8 7/8 (22.2) 240 (325)
4 (10.16) 8 1 1/8 (28.6) 533 (723)
6 (15.24) 12 1 1/8 (28.6) 533 (723)
8 (20.32) 12 1 3/8 (34.9) 1020 (1383)
10 (25.4) 16 1 3/8 (34.9) 1020 (1383)
12 (30.48) 20 1 3/8 (34.9) 1020 (1383)
14 (35.56) 20 1 1/2 (38.1) 1200 (1627)
16 (40.64) 20 1 5/8 (41.3) 1650 (2237)
18 (45.72) 20 1 7/8 (47.6) 3000 (4067)
20 (50.8) 20 2 (50.8) 3300 (4474)
24 (60.96) 20 2 1/2 (63.5)) 6600 (8948)
Table B-11. Class 1500#
1
/8-in. Thick Spiral Wound Gasket
Flange Size
in. (mm)
Number of Bolts Bolt Diameter
in. (mm)
Bolt Torque
ft.-lbs. (N-m)
2 (5.08) 8 7/8 (22.2) 240 (325)
2.5 (6.35) 8 1 (25.4) 368 (499)
3 (7.62) 8 1 1/8 (28.6) 533 (723)
4 (10.16) 8 1 1/4 (31.8) 750 (1017)
6 (15.24) 12 1 3/8 (34.9) 1020 (1383)
8 (20.32) 12 1 5/8 (41.3) 1650 (2237)
10 (25.4) 12 1 7/8 (47.6) 3000 (4067)
12 (30.48) 16 2 (50.8) 3300 (4474)
14 (35.56) 16 2 1/4 (57.2) 4770 (6467)
16 (40.64) 16 2 1/2 (63.5) 6600 (8948)
18 (45.72) 16 2 3/4 (69.9) 8880 (12040)
20 (50.8) 16 3 (76..2) 11580 (15700)
24 (60.96) 16 3 1/2 (88.9) 18750 (25422)
Table B-12. Class 2500#
1
/8-in. Thick Spiral Wound Gasket
Flange Size
in. (mm)
Number of Bolts Bolt Diameter
in. (mm)
Bolt Torque
ft.-lbs. (N-m)
2 (5.08) 8 1 (25.4) 368 (499)
2.5 (6.35) 8 1 1/8 (28.6) 533 (723)
3 (7.62) 8 1 1/4 (31.8) 750 (1017)
4 (10.16) 8 1 1/2 (38.1) 1200 (1627)
6 (15.24) 8 2 (50.8) 3300 (4474)
8 (20.32) 12 2 (50.8) 3300 (4474)
10 (25.4) 12 2 1/2 (63.5) 6600 (8948)
12 (30.48) 12 2 3/4 (69.9) 8880 (12040)