GAS PIPE SIZE REQUIRED FOR 1,000 BTU NATURAL GAS — .64 SPECIFIC GRAVITY
GAS
25 FT.
APPLIANCES
(7.63 m)
TOTAL
BTU/HR.
100,000
¾" (19.05mm)
120,000
¾" (19.05mm)
140,000
¾" (19.05mm)
160,000
¾" (19.05mm)
180,000
1" (2.54cm)
200,000
1" (2.54cm)
300,000
1" (2.54cm)
400,000
1¼" (3.18cm)
500,000
1¼" (3.18cm)
600,000
1½" (3.81cm)
700,000
1½" (3.81cm)
800,000
1½" (3.81cm)
900,000
2" (5.08cm)
1,000,000
2" (5.08cm)
1,100,000
2" (5.08cm)
1,200,000
2" (5.08cm)
1,300,000
2" (5.08cm)
1,400,000
2" (5.08cm)
1,500,000
2" (5.08cm)
1,600,000
2" (5.08cm)
1,700,000
2" (5.08cm)
1,800,000
2½" (6.35cm)
1,900,000
2½" (6.35cm)
2,000,000
2½" (6.35cm)
2,200,000
2½" (6.35cm)
2,400,000
2½" (6.35cm)
2,600,000
2½" (6.35cm)
2,800,000
2½" (6.35cm)
3,000,000
2½" (6.35cm)
FOR L. P. GAS, CORRECT THE TOTAL BTU/HR. BY MULTIPLYING IT BY 0.6. THE ANSWER IS THE
EQUIVALENT BTU ON THE ABOVE CHART.
IMPORTANT: The installation must conform with local codes or, in the absence of local codes:
• with the latest edition of the "National Fuel Gas Code", ANSI Z223.1 in the U.S.A.,
• with CAN1-B149.1 or CAN1-B149.2 in Canada,
•
and Australian Gas Association / Australian LP Gas Association requirements in Australia
28
AT 6½ ± 1½ INCH (1.62 ± .37 kPa) WATER COLUMN PRESSURE
50 FT.
(15.25 m)
BASED ON 0.3" WATER COLUMN PRESSURE DROP FOR LENGTH GIVEN
¾" (19.05mm)
1" (2.54cm)
1" (2.54cm)
1" (2.54cm)
1" (2.54cm)
1" (2.54cm)
1¼" (3.18cm)
1¼" (3.18cm)
1½" (3.81cm)
1½" (3.81cm)
2" (5.08cm)
2" (5.08cm)
2" (5.08cm)
2" (5.08cm)
2" (5.08cm)
2" (5.08cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
EQUIVALENT LENGTH
75 FT.
100 FT.
(22.88 m)
(30.50 m)
1" (2.54cm)
1" (2.54cm)
1" (2.54cm)
1" (2.54cm)
1" (2.54cm)
1" (2.54cm)
1" (2.54cm)
1¼" (3.18cm)
1" (2.54cm)
1¼" (3.18cm)
1¼" (3.18cm)
1¼" (3.18cm)
1¼" (3.18cm)
1½" (3.81cm)
1½" (3.81cm)
1½" (3.81cm)
1½" (3.81cm)
2" (5.08cm)
2" (5.08cm)
2" (5.08cm)
2" (5.08cm)
2" (5.08cm)
2" (5.08cm)
2" (5.08cm)
2" (5.08cm)
2½" (6.35cm)
2" (5.08cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
3" (7.62cm)
2½" (6.35cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3½" (8.89cm)
3" (7.62cm)
3½" (8.89cm)
3½" (8.89cm)
3½" (8.89cm)
Table 2
125 FT.
150 FT.
(38.13 m)
(45.75 m)
1" (2.54cm)
1" (2.54cm)
1" (2.54cm)
1" (2.54cm)
1" (2.54cm)
1¼" (3.18cm)
1¼" (3.18cm)
1¼" (3.18cm)
1¼" (3.18cm)
1¼" (3.18cm)
1¼" (3.18cm)
1½" (3.81cm)
1½" (3.81cm)
1½" (3.81cm)
1½" (3.81cm)
2" (5.08cm)
2" (5.08cm)
2" (5.08cm)
2" (5.08cm)
2" (5.08cm)
2" (5.08cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
2½" (6.35cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3" (7.62cm)
3½" (8.89cm)
3½" (8.89cm)
3½" (8.89cm)
3½" (8.89cm)
3½" (8.89cm)
3½" (8.89cm)
3½" (8.89cm)
3½" (8.89cm)
3½" (8.89cm)
3½" (8.89cm)
4" (10.16cm)
.
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