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Understanding Wick Odorizers for Natural Gas Odorization

Wick odorizers, also known as farm tap odorizers, play a crucial role in the odorization of natural gas supplied to individual dwellings. For systems requiring higher capacity, larger models are available.

Wick Odorizer

How Wick Odorizers Work

A wick odorizer consists of a short vertical pipe, closed at one end, and installed in a tee fitting below a horizontal pipe run. This vertical pipe is filled with odorant and features a rope wick that extends from the bottom of the pipe into the center of the carrier pipe. The wick absorbs the liquid odorant, which then vaporizes into the flowing natural gas stream.


Factors Influencing Natural Gas Odorization

The rate at which the odorant vaporizes from the wick is influenced by several factors:

  • Gas Flow Rates: Higher gas flow rates can increase the rate of odorant vaporization, leading to higher concentrations of odorant in the natural gas stream.

  • Temperature: Higher temperatures can enhance the vaporization rate of the odorant, while lower temperatures can reduce it.

  • Wick Saturation: The saturation level of the wick affects how much odorant is available for vaporization. A fully saturated wick will provide a consistent odorant release.

  • Contamination: Solids and hydrocarbon liquids can contaminate the wick and odorant, reducing the efficiency of the odorization process.


Installation and Operation of Wick Odorizers

For optimal performance in natural gas odorization, follow these guidelines:

  • Installation: Ensure the vertical pipe is securely installed in the tee fitting below the horizontal pipe run. The pipe should be filled with the appropriate odorant, and the wick should be properly positioned to extend into the carrier pipe.

  • Maintenance: Regularly check the wick for contamination and replace it if necessary. Ensure the odorant level is maintained to keep the wick saturated.

  • Monitoring: Monitor gas flow rates and temperature to anticipate and adjust for fluctuations in odorant concentration.


For detailed installation instructions and operational guidelines, always refer to the equipment manufacturer's documentation.

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