Lyon Petroleum Supply

formerly Marine Services 
Petroleum Measurement & Testing Equipment

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(800) 421-8329

New Website

Pardon our dust!  Please bear with us as we are in the process of creating an entirely new Lyon Petroleum Supply website.  It will take some time to get all content moved to the new site and updated as needed.  Please call if your looking for an item that is not shown on the website.


If you want the best certification of hydrometers, centrifuge tubes and thermometers for the best cost, you need to give us a call today. 

We will match of beat any other qualified labratory certification cost!

Best Pricing

We thing you will be pleased with the considerable dollar savings for you and your company.

Please call tollfree at 800-421-8329 to place an order or to request information.

Essential Testing & Sampling Equipment

  • Hydrometers


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  • Centrifuges


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  • Gauging Thermometers

    Gauging Thermometers

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  • Kolor Kut


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Lyon Petroleum Supply has been a full service provider of measurement, testing and sampling equipment to the petroleum industry for over 20 years.

Lyon Petroleum Supply provides products from all major manufacturers in the petroleum industry such as Robinson, Koehler, Weamco, ThermoProbe, Cooper-Atkins, Miller & Weber, U.S. Tape, Lufkin, Dickey and United Security Seals and Chase Instruments but at prices that are reduced from the prices that are normally charged by major suppliers. We also manufacture the popular Electronic Probe for extremely accurate temperature measurement in pipeline manifolds, storage tanks and vessels as well as providing independent laboratory services for certification of hydrometers, thermometers and electronic instruments. Check us out and see for yourself!!

Following over 30 years employment with a major pipeline company, we began serving the petroleum industry with experience and products to meet its needs. As a result of our experience, we have been a resource in helping to resolve many of the measurement problems encountered in petroleum pipeline and terminal operation. We provide everything from hydrometers and thermometers to centrifuges and electronic measurement instruments. We understand that accurate measurement is the cash register of petroleum companies and, without timely and accurate measurement, mismeasurement takes place and dollars can be lost.


Exceptional Customer Service

Every Customer - Every Day!  We take the time to find what you can't find anywhere else.

We offer ASTM/NIST traceable certification from an independent laboratory on all thermometers, hydrometers, centrifuge tubes and electronic temperature measurement instruments. As you browse through our website, we hope that you will find what you need but, if not, please call our toll free number 800-421-8329.  If we don't have the item(s) immediately available, we will gladly spend the time it takes to find that special instrument to fit your needs.