Gas Odorization for Our Future

GPL Odorizers designs and manufactures odorant injection systems to odorize natural gas, propane, and biogas safely.

Unlike other natural gas odorizer manufacturers, our models do not use pipeline gas to actuate the system. Meaning, the GPL odorizer does not discharge gas nor odorant to the atmosphere, making our models more environmentally friendly. There is no smell during regular operation or even maintenance because our systems have a clean, sealed, and ventless design, resulting in lower false leak-call complaints. By leveraging the GPL advanced technology, the operator saves time and money through remote monitoring, real-time mobile alerts, and efficient reporting. The GPL systems are accurate and reliable over a wide range of flow, including problematic no-flow, ultra-low-flow, and intermittent-flow applications.

The GPL designs are cost-effective, accurate, reliable, easy to maintain and operate, and better for the environment. GPL Odorizers just makes scents!

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Our two products offer precise odorization for most applications:

GPL 10000 Natural Gas Odorization Package

GPL 10000

The GPL 10000 is for high-pressure and high-volume applications at transmission companies and large city gate stations. The odorization unit has high rangeability, achieving precision odorization over a wide operating range of volume. The industry-leading PLC interfaces with the flow meter and the system components to maintain constant chemical injection proportional to the gas flow rate.

GPL 750 Natural Gas Odorizer (CL I Div 1 optional)

GPL 750

The GPL 750 uses proprietary drip technology, permitting precise odorization in even problematic ranges, such as low-volume (even no-flow) and intermittent-volume uses. The unit is appropriate for municipalities, small city gate stations, and methane (biogas) producers. The PLC receives flow information and automatically compensates the injection rate to provide uniform odorant distribution and control.

Model	Min Flow MMSCFD	Max Flow MMSCFD	Min PSI	Max PSI
750	0	18	1	225
750 HC	0	24	1	225
10000	0.48	240	30	1480

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Odorant Injection System Principle of Operation Video

Mercaptan Natural Gas Odor Injection

Natural gas, by itself, is odorless. In 1937 over 200 women, children, and men died when un-odorized natural gas ignited in a London Texas school. This disaster was the impetus for the regulations to add odor to natural gas so that any person would detect it when having a “normal” sense of smell. An odorizer is a machine that injects the odorant into natural gas so that it is detectable to improve safety. The regulation requires that the odor be detected when the gas is present at one-fifth of the lower explosive limit. Over the years, countless studies have revealed that mercaptans, which are a class of organosulfur compounds, are the ideal chemicals to odorize natural gas. The chemical offers a repulsive, rotten egg smell that is readily detectable at unusually low concentrations.
 
GPL does not manufacture odorants. We design systems for natural gas, propane, and biogas.

No Odorant or Gas Discharge
No Smell Operation
Eco-Friendly

Our patented and innovative approach does not use gas to actuate the system and has a clean, sealed, and ventless design.

Accurate and Reliable
Even in Problematic Flow Ranges

Our systems provide precision chemical injection over a wide range, including problematic no-flow, ultra-low-flow, to high-flow and high-pressure uses. Our two models offer precise odorization for most applications.

Advanced Technology
Remote Monitoring and Mobile Alerts

The GPL advanced electronic components save time and money through remote monitoring, real-time communications, and efficient reporting.

Cost-Effective and Simple
Simple Solutions to Complex Challenges

Our straightforward natural gas odorization systems are cost-effective, competitively priced and easy to maintain and operate.

Turnkey Odorization Solution Offering Mobility and Shelter (GPL 750 Odorizer)

GPL Odorizers (formerly Sentry Equipment and Zeck Systems) is distributed exclusively by Linc Energy Systems Inc.; a WBE Certified small business. Both companies are in Lakewood, Colorado, just outside of Denver.

The MercapMan Log

MercapMan

MercapMan is the GPL mascot. MercapMan, a/k/a the good egg, is blogging to educate the industry and public on the importance of odorizing natural gas. MercapMan, wants everyone to know that the nasty, rotten egg smell commonly associated with natural gas is there to take action! Read more on the MercapMan Log.

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