GAS PIPE SIZE REQUIRED FOR 1,000 BTU NATURAL GAS — .64 SPECIFIC GRAVITY

AT 6½ ± 1½ INCH (1.62 ± .37 kPa) WATER COLUMN PRESSURE

 

 

 

EQUIVALENT LENGTH

 

 

 

 

 

 

 

 

 

GAS

25 FT.

50 FT.

75 FT.

100 FT.

125 FT.

150 FT.

APPLIANCES

(7.63 m)

(15.25 m)

(22.88 m)

(30.50 m)

(38.13 m)

(45.75 m)

TOTAL

 

 

 

 

 

 

BTU/HR.

BASED ON 0.3" WATER COLUMN PRESSURE DROP FOR LENGTH GIVEN

 

 

 

 

 

 

100,000

¾" (19.05mm)

¾" (19.05mm)

1" (2.54cm)

1" (2.54cm)

1" (2.54cm)

1" (2.54cm)

120,000

¾" (19.05mm)

1" (2.54cm)

1" (2.54cm)

1" (2.54cm)

1" (2.54cm)

1" (2.54cm)

140,000

¾" (19.05mm)

1" (2.54cm)

1" (2.54cm)

1" (2.54cm)

1" (2.54cm)

1¼" (3.18cm)

160,000

¾" (19.05mm)

1" (2.54cm)

1" (2.54cm)

1¼" (3.18cm)

1¼" (3.18cm)

1¼" (3.18cm)

180,000

1" (2.54cm)

1" (2.54cm)

1" (2.54cm)

1¼" (3.18cm)

1¼" (3.18cm)

1¼" (3.18cm)

200,000

1" (2.54cm)

1" (2.54cm)

1¼" (3.18cm)

1¼" (3.18cm)

1¼" (3.18cm)

1½" (3.81cm)

300,000

1" (2.54cm)

1¼" (3.18cm)

1¼" (3.18cm)

1½" (3.81cm)

1½" (3.81cm)

1½" (3.81cm)

400,000

1¼" (3.18cm)

1¼" (3.18cm)

1½" (3.81cm)

1½" (3.81cm)

1½" (3.81cm)

2" (5.08cm)

500,000

1¼" (3.18cm)

1½" (3.81cm)

1½" (3.81cm)

2" (5.08cm)

2" (5.08cm)

2" (5.08cm)

600,000

1½" (3.81cm)

1½" (3.81cm)

2" (5.08cm)

2" (5.08cm)

2" (5.08cm)

2" (5.08cm)

700,000

1½" (3.81cm)

2" (5.08cm)

2" (5.08cm)

2" (5.08cm)

2" (5.08cm)

2½" (6.35cm)

800,000

1½" (3.81cm)

2" (5.08cm)

2" (5.08cm)

2" (5.08cm)

2½" (6.35cm)

2½" (6.35cm)

900,000

2" (5.08cm)

2" (5.08cm)

2" (5.08cm)

2½" (6.35cm)

2½" (6.35cm)

2½" (6.35cm)

1,000,000

2" (5.08cm)

2" (5.08cm)

2" (5.08cm)

2½" (6.35cm)

2½" (6.35cm)

2½" (6.35cm)

1,100,000

2" (5.08cm)

2" (5.08cm)

2½" (6.35cm)

2½" (6.35cm)

2½" (6.35cm)

2½" (6.35cm)

1,200,000

2" (5.08cm)

2" (5.08cm)

2½" (6.35cm)

2½" (6.35cm)

2½" (6.35cm)

2½" (6.35cm)

1,300,000

2" (5.08cm)

2½" (6.35cm)

2½" (6.35cm)

2½" (6.35cm)

2½" (6.35cm)

3" (7.62cm)

1,400,000

2" (5.08cm)

2½" (6.35cm)

2½" (6.35cm)

2½" (6.35cm)

3" (7.62cm)

3" (7.62cm)

1,500,000

2" (5.08cm)

2½" (6.35cm)

2½" (6.35cm)

2½" (6.35cm)

3" (7.62cm)

3" (7.62cm)

1,600,000

2" (5.08cm)

2½" (6.35cm)

2½" (6.35cm)

3" (7.62cm)

3" (7.62cm)

3" (7.62cm)

1,700,000

2" (5.08cm)

2½" (6.35cm)

2½" (6.35cm)

3" (7.62cm)

3" (7.62cm)

3" (7.62cm)

1,800,000

2½" (6.35cm)

2½" (6.35cm)

3" (7.62cm)

3" (7.62cm)

3" (7.62cm)

3" (7.62cm)

1,900,000

2½" (6.35cm)

2½" (6.35cm)

3" (7.62cm)

3" (7.62cm)

3" (7.62cm)

3" (7.62cm)

2,000,000

2½" (6.35cm)

2½" (6.35cm)

3" (7.62cm)

3" (7.62cm)

3" (7.62cm)

3½" (8.89cm)

2,200,000

2½" (6.35cm)

3" (7.62cm)

3" (7.62cm)

3" (7.62cm)

3½" (8.89cm)

3½" (8.89cm)

2,400,000

2½" (6.35cm)

3" (7.62cm)

3" (7.62cm)

3" (7.62cm)

3½" (8.89cm)

3½" (8.89cm)

2,600,000

2½" (6.35cm)

3" (7.62cm)

3" (7.62cm)

3½" (8.89cm)

3½" (8.89cm)

3½" (8.89cm)

2,800,000

2½" (6.35cm)

3" (7.62cm)

3" (7.62cm)

3½" (8.89cm)

3½" (8.89cm)

3½" (8.89cm)

3,000,000

2½" (6.35cm)

3" (7.62cm)

3½" (8.89cm)

3½" (8.89cm)

3½" (8.89cm)

4" (10.16cm)

 

 

 

 

 

 

 

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.

Table 2

M414545

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