Kelley Instrument Machine, Inc.

 (870) 330-9838

Mon - Fri, 8 a.m.-5 p.m.

Please complete the Contact page and
we will get back to you as soon as possible.

"A Measurable Difference"

Quality You Can Measure

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Collection of Plates

The Industry's Premier Orifice Plates

Gas & Oil

Gas & Oil







Contact Us

Contact Us

Improve the overall performance of your petroleum or industrial operation with products and services from our company in Texarkana, TX. Family-owned-and-operated Kelley Instrument Machine, Inc. manufactures orifice plates for use in the natural gas pipeline industry and industrial markets.

We manufacture all our products to strict manufacturing specifications requested by our customers and offer supporting documentation. Additionally, we build to the American Gas Association (AGA) specifications for metro gas markets and various private and municipal facilities. As such, the presence of our trademark is your assurance that you are receiving high-quality, precision-made products.

We only sell our products through our authorized distributors nationwide and globally. Call us now to find one near you.

Participating in the American School of Gas Measurement Technology located in Houston, TX,
and the International School of Hydrocarbon Measurement in Oklahoma City

Contact us to purchase products through authorized distributors only.
(870) 330-9838
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The Right Products for First-Rate Workmanship

About Us

Our founders worked at an orifice plate business before starting this operation. It all began with a lathe in a backyard storage shed. Now, our third-generation family business has grown into a 6-acre facility with 22,000 square feet and 30 employees.

Since July 1975, our staff has felt privileged to serve the natural gas industry. We are proud that the manufacturing of quality Kelley™ Orifice Plates has never been a sideline business, but our number-one concern. We work hard to ensure that our orifice plates are the very best quality available.

Orifice Plates Seal Rings Gaskets Orifice Plate Storage Boxes

Look for the Kelley Trademark on All Our Products

AGA Logo National Association of Manufactures Logo ISHM Logo


(870) 330-9838

Hours of Operation
Monday - Friday, 8 a.m.-5 p.m.
Please complete the Contact page and we will get back to you as soon as possible.

Send Mail to: PO Box 5368, Texarkana, TX 75505
All Deliveries: 206 Alpine Street, Texarkana, TX 75501