NATURAL GAS |
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VENTING WITH TWO 90° ELBOWS | VENTING WITH TWO 90° ELBOWS | ||||
V (FT.) | H + H1 (FT.) | V (FT.) | H + H1 (FT.) | ||
1' MIN. (305mm) | 3' MAX. (914mm) | 1' MIN. (305mm) | 2' MAX. (610mm) | ||
2' MIN. (610mm) | 6' MAX. | (1.83m) | 2' MIN. (610mm) | 4' MAX. | (1.22m) |
3' MIN. (914mm) | 9' MAX. | (2.7m) | 3' MIN. (914mm) | 6’ MAX. | (1.83m) |
4' MIN. (1.22m) | 12' MAX. | (3.6m) | 4' MIN. (1.22m) | 8' MAX. | (2.4m) |
5’ MIN. (1.5m) | 15’ MAX. | (4.5m) | 5’ MIN. (1.5m) | 10' MAX. | (3.0m) |
6’ MIN. (1.83m) | 18’ MAX. | (5.5m) | 6’ MIN. (1.83m) | 12' MAX. | (3.6m) |
V + H + H1 = 50’ MAX. (15.2m) | V + H + H1 = 50’ MAX. (15.2m) | ||||
H + H1 = 18’ MAX. (5.5m) | H + H1 = 12’ MAX. (3.6m) | ||||
H1 |
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Figure 16. |
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Venting with Two 90° Elbows |
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| NATURAL GAS |
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| PROPANE |
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| VENTING WITH TWO 90° ELBOWS | VENTING WITH TWO 90° ELBOWS | |||||
| V (FT.) | H + H1 (FT.) | V (FT.) | H + H1 (FT.) | |||
| 1' MIN. (305mm) | 3' MAX. (914mm) | 1' MIN. (305mm) | 2' MAX. (610mm) | |||
| 2' MIN. (610mm) | 6' MAX. | (1.83m) | 2' MIN. (610mm) | 4' MAX. | (1.22m) | |
| 3' MIN. (914mm) | 9' MAX. | (2.7m) | 3' MIN. (914mm) | 6’ MAX. | (1.83m) | |
| 4' MIN. (1.22m) | 12' MAX. | (3.6m) | 4' MIN. (1.22m) | 8' MAX. | (2.4m) | |
| 5’ MIN. (1.5m) | 15’ MAX. | (4.5m) | 5’ MIN. (1.5m) | 10' MAX. | (3.0m) | |
V | 6’ MIN. (1.83m) | 18’ MAX. | (5.5m) | 6’ MIN. (1.83m) | 12' MAX. | (3.6m) | |
V + H + H1 | = 50’ MAX. (15.2m) | V + H + H1 = 50’ MAX. (15.2m) | |||||
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| H + H1 = 18’ MAX. (5.5m) | H + H1 = 12’ MAX. (3.6m) | |||||
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Figure 17. Venting with Two 90° Elbows |
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