Page 23 - CPVC Fire Sprinkler Products Installation Instructions & Technical Handbook

LISTINGS & APPROVALS 21
Table B - Ground Cover
Nominal Pipe Size ANSI Inches DN
3
DN80 and Under
Trench Width Inches (mm)
8 (203,2)
Ground Cover Minimum Inches (mm)
Light Traffic
12 - 18 (305,0 - 457,2)
Heavy Traffic
30 - 36 (762,0 - 914,4)
Loop
Length 10° 20° 30° 40° 50° 60° 70° 80° 90° 100°
2
Table C1 - U.S. Units
Maximum Temperature Variation, °F Between Time of Solvent Welding and Final Use
DEFLECTED PIPE
OFFSET
LOOP LENGTH
OFFSET
2 LOOP LENGTHS
Temperature Variation, °F
Feet
Offset- Inches
20 3 4 5 5 6 6 7 7 8 8
50 7 9 11 13 14 16 17 18 19 20
100 18 18 22 26 29 32 35 37 40 42
Table C2 - Metric Units
Maximum Temperature Variation, °C Between Time of Solvent Welding and Final Use
DEFLECTED PIPE
OFFSET
LOOP LENGTH
OFFSET
2 LOOP LENGTHS
Loop Length Meters
Temperature Variation, °C
5° 10° 15° 20° 25° 30° 35° 40° 45° 50°
Offset- Millimeters
5 65 83 95 105 114 123 133 143 154 164
15 164 219 266 307 343 377 409 440 469 498
30 314 424 522 609 687 758 823 884 943 999