Installation Instructions
42
*Table includes losses for four 90 degree bends and two (2) end fittings. Tubing runs with larger numbers of bends and/or fitting shall be increased by an equivalent length of
tubing according to the following formula:
L = 1.3 (n) L = is the additional length (ft.) of tubing to be added to actual run. n = is the number of additional fittings and/or bends.
CAPACITY TABLES OF CSST – TABLE 3
Maximum Capacity of Pro-Flex
®
CSST in Cubic Feet per Hour of Gas Gas Pressure: 8 – 10 inches WC Pressure Drop: 3 inch WC (Based on a 0.6 Specific Gravity Gas)
Tubing Length (feet)
Tube Size (EHD) 5 10 15 20 25 30 40 50 60 70 80 90 100 150 200 250 300
3/8” 15 156 110 90 78 70 64 55 50 45 42 39 37 35 29 25 22 20
1/2” 18 222 160 132 115 103 95 83 74 68 63 59 56 53 44 38 34 32
3/4” 25 692 490 400 346 310 283 245 219 200 185 173 163 155 126 109 98 89
1” 31 1717 1162 925 787 694 626 532 469 424 388 360 337 318 253 215 189 171
1
1
/4” 37 2337 1650 1346 1165 1041 950 822 735 671 621 581 547 519 423 366 327 299
*Table includes losses for four 90 degree bends and two (2) end fittings. Tubing runs with larger numbers of bends and/or fitting shall be increased by an equivalent length of
tubing according to the following formula:
L = 1.3 (n) L = is the additional length (ft.) of tubing to be added to actual run. n = is the number of additional fittings and/or bends.
CAPACITY TABLES OF CSST – TABLE 4
Maximum Capacity of Pro-Flex
®
CSST in Cubic Feet per Hour of Gas Gas Pressure: 11 – 13 inches WC Pressure Drop: 6 inch WC (Based on a 0.6 Specific Gravity Gas)
Tubing Length (feet)
Tube Size (EHD) 5 10 15 20 25 30 40 50 60 70 80 90 100 150 200 250 300
3/8” 15 220 156 127 110 99 90 78 70 64 59 55 52 50 41 35 31 29
1/2” 18 308 222 183 160 144 132 115 103 95 88 83 78 74 61 53 48 44
3/4” 25 979 692 565 490 438 400 346 310 283 262 245 231 219 179 155 138 126
1” 31 2536 1717 1366 1162 1025 925 787 694 628 574 532 498 469 373 318 280 253
1
1
/4” 37 3310 2337 1906 1650 1475 1346 1165 1041 950 880 822 775 735 600 519 464 423
NATURAL GAS
Locate proper sizing table based on total pressure drop allowed in piping system by local utility for each installation.