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For equal Btu what is ratio for LP and Natural Gas orifice sizes?
Wiki User
∙ 11y ago
Assuming the following typical conditions:
- natural gas manifold pressure is 3.5" w.c.
- propane manifold pressure is 10" w.c.
- natural gas and propane specific gravities are 0.6 and 1.52 relative to air
- natural gas and propane energies per cubic foot are 1038 and 2516 BTU
- your orifice coefficients are the same
then the propane orifice diameter should be 0.623 times the natural gas orifice diameter.
Wiki User
∙ 11y ago
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