Ansi flangeansi flange stud torque, Ansi flange stud torque – Max Machinery 243 Helical Flow Meter User Manual
Page 12
Max Machinery, Inc.
© Copyright 2013
Rev. 002Q4
12
Meter
(Flange)
Studs
Torque For Line Pressure ft-lb
(N-m)
See notes below
Absolute
Max Torque
ft-lb (N-m)
Stress at
Max Torque
(psi)*
Qty Size
500
1000
1500
2500
3500
241 (600# Flange)
4
3/4-10
24 (33)
49 (67)
73 (99)
200 (271)
47,904
241 (2500# Flange) 4
1-1/8-7
37 (50)
73 (99)
110 (149)
183 (248) 256 (247) 681 (924)
47,789
242 (600# Flange)
8
3/4-10
24 (33)
47 (64)
71 (96)
200 (271)
47,904
242 (1500# Flange)
8
1-8
31 (42)
63 (86)
94 (128)
157 (213)
219 (297)
483 (656)
47,822
243 (600# Flange)
8
7/8-9
53 (72)
106 (144) 159 (216)
322 (437)
47,972
243 (1500# Flange)
8
1-1/4-7
76 (103) 151 (205) 227 (308) 378 (513)
529 (718)
965 (1310)
47,802
240 Series ANSI Flange Stud Torque Requirements. This table shows the minimum torque required for a 2:1 tightening
factor at the indicated pressures using zinc plated studs and nuts. These values were calculated using studs with a yield
strength of Sy = 75,000 psi.
ANSI Flange Stud Torque
Notes:
Using the 241, 242 or 243 meters at pressures greater than 500 psi
will require flanges. Max has bolt kits available for
flange installations.
For unplated non-lubricated nuts and studs, multiply the above torque by 1.5.
For lubricated nuts and studs, multiply the above torque by 0.9.
For cadmium plated nuts and studs, multiply the above torque by 0.8.
*Stress in bolt calculated for thread root diameter.