# Frequent question: Which orifice is bigger propane or natural gas?

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Natural gas orifices are larger than propane, to allow extra fuel to flow through at lower pressure. Propane orifices are smaller, to account for the higher pressure and increased energy output.

## Can I use a propane orifice for natural gas?

Yes, propane appliances can run on natural gas, but it is not advisable without installing a conversion kit.

## What is the orifice size for natural gas?

Natural gas pilot orifice sizes typically vary from approximately 0.014 to 0.026 (inches diameter). Examples include 0.026′′ for a commercial cook- ing appliance pilot (1,835 Btu/hr at 4′′ pressure), and 0.018′′ for a natural gas water heater pilot (879 Btu/hr at 4′′ pressure).

## How do I know my orifice size?

Divide the flow of the liquid by the velocity of the liquid to determine the area of the orifice in square feet. In the above example, you would divide 8 by 2. The total area of the orifice would be 4 square feet.

## What happens if you use propane on a natural gas grill?

If propane is supplied through an orifice manufactured for natural gas, too much propane will be released and a large flame will result. Cook out on a propane grill. … Converting a natural gas BBQ to use propane can be done at home; however, caution should be taken.

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## What size hole is a propane orifice?

A propane stove orifice size is about 0.082 inches (drill size 45), but the valve on a similar stove that uses natural gas needs an orifice that is almost 0.125 inches (drill size 35).

## What is orifice size?

The orifice size is the actual hole diameter in the orifice fitting. … Divide the flow of the liquid by the velocity of the liquid to determine the area of the orifice in square feet. In the above example, you would divide 8 by 2. The total area of the orifice would be 4 square feet.

## Can you drill out a propane orifice?

Converting from LP to natural gas safely and correctly involves more than might be apparent to the typical DIYer. Frankly, it’s folly to drill out orifices. If you can get the correct orifice, don’t do it.

## Which is better propane or natural gas?

And, overall, propane is the more efficient fuel. … That means, propane is more than twice the energy of natural gas. While the cost per gallon is less for natural gas, you’ll use more of it to heat the same appliances. If you get two times the heat from propane, naturally, you’ll use less fuel.

## Where is the orifice on a gas grill?

Orifice Size

The valve orifice fitting is the fitting at the end of the valve which has a small hole drilled into it’s center. Most orifice fittings will have their size stamped either on the top or side of the fitting.

## How do I know what size orifice for my pressure washer?

The nozzle orifice size designation is obtained by the flow of water that goes through that hole size at 4000 PSI. So if you look at a nozzle chart the gallons per minute shown under the 4000 PSI column always is the same as the nozzle orifice size designation.

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## What is the purpose of orifice?

An orifice plate is a device used for measuring flow rate, for reducing pressure or for restricting flow (in the latter two cases it is often called a restriction plate ).