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Our business principles are as old as our roots, build the absolute best product that needs

no apologies.
That’s the way its been since the beginning when I.V. Zeck opened his garage

in Wichita Falls, Texas. Of course, back then they were only servicing automobiles and

YZ Engine and Carburetor
Service, Circa 1950
I.V. Zeck & Service Station Crew, Circa 1920

pumping gas, but the business ethic of doing the best job possible was seeded and took root.

In the 40’s I.V. moved the company to Snyder, Texas, located in the heart of the Permian

Basin Oil and Gas production fields, to apply the team’s skills of servicing automobiles and

their engines, to servicing drilling engines.


It was a big deal for the country back then, we were on the preciface of a second world

war and the country needed oil to drive the machines of freedom. The demand for their

skills was great.



From there its simply a story of one thing leading to another. In the forties and fifties their

talents for engine work spread across the West Texas production fields and soon,

petroleum engineers began stopping by to speak with I.V. about special projects,

modifications, and the tools they needed as they brought their drilling fields into production.


Soon I.V. added a machine shop, expanded the team, and formally founded Y-Z Carburetor

Service in 1949. Initially a partnership between John Young and I.V. Zeck, hence the

name YZ, John Young soon found the challenges of entrepreneurship a little too much to

handle and turned his portion of the business over to I.V.


For the next 30 years the business stayed the course, expanded their product offering,

and added a son to the business, Ted Zeck . During that time YZ began building crude oil

and light petroleum fluid sampling systems, by furnishing complete skids.

YZ Systems Headquarters located in Conroe, Texas
In the 70’s the company applied its skill set by developing natural gas sampling systems,

and then in the 80’s the first online, pipeline mounted, natural gas sampling system, DynaPak

was developed.


With the 80’s a couple of grandsons joined the business, Paul and Mark, which brought

about a large expansion in the company. By then YZ was designing equipment and milling

their own steel for the various components required for their sampling systems. This

application specific philosophy soon found a new product line to support, NJEX Odorant

Injection Systems.


At that time odorization systems were basically regional product lines, tinkered together, in

someone’s workshop. Realizing that odorization needed a systems approach, Paul and Mark

applied their engineering expertise to develop the first complete self-contained system

comprised of a pump, measurement device, and system controller. This marked the birth of

the NJEX Odorization Systems.


A little over ten years have gone by and YZ still leads technology development in

odorization. Using those skills sets the company is expanding its product offering once

again by developing “Concept to Reality” chemical injection systems, CHEMJEX. These

broad based systems are targeted to the needs of our customer’s application by

combining the injection pump, controllers, measurement device, and a wide range of

options, onto a complete skid manufactured in our ISO 9001 certified facility with the

same attention to craftsmanship that made YZ a world class company.


Today YZ is a United Technologies Company (NYSE: UTC) organized under the Hamilton

Sundstrand - Industrial Division and financially reporting as a company of Milton Roy. The

Milton Roy Company is the global leader in the manufacture of chemical metering pumps

with manufacturing facilities and representation through out the world.


And that is just the beginning…