Page 187 - Tyco-Grooved-Fire-Protection-Products-Installation-Handbook

SYSTEM DESIGN 185
Thermal Movement 2 of 4
Nominal Pipe Size ANSI Inches DN
Activation Force Lbs. (N)
1-1/4
32
35 (156)
1-1/2
50
45 (200)
2
50
70 (311)
2-1/2
65
100 (645)
—
65
110 (489)
3
80
145 (645)
4
100
240 (1068)
Nominal Pipe Size ANSI Inches DN
Activation Force Lbs. (N)
5
125
375 (1668)
– 150
500 (2224)
6
150
520 (2313)
8
200
880 (3914)
10
250
1365 (6072)
12
300
1915 (8518)
2) Design the system with flexible and/or rigid couplings and allow the pipe to move in directions desired, with the use of anchors and guides if so required. With this method, it is important to ensure that movement at branch connections, changes of direction, equipment hookup, etc., will not cause damage or harmful stresses.
3) Design the system with flexible couplings utilizing the expansion/con- traction capabilities of these products. The following example illustrates this method:
• 6 inch Schedule 40 Steel Pipe, Roll Grooved, 150 foot long, anchored at each end.
• Maximum Temperature = 200°F • Minimum Temperature = 40°F
• Install Temperature = 80°F
ANCHOR
FLEXIBLE COUPLINGS
INTERMEDIATE GUIDES