KOSO AMERICA, INC. is the manufacturer of two respected brands in the industrial controls marketplace, REXA and KOSO HAMMEL DAHL.
Industries served include; power, pipeline, municipal water and wastewater treatment, chemical processing and industrial gases.
We at KOSO AMERICA are committed to providing products and services that meet or exceed our customer requirements.
We continually develop new designs, processes, and systems to provide the best products and service to our customers.
KOSO AMERICA, INC. is an ISO 9001 (revision 2000) certified company.

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The REXA product line consists of industrial grade, self-contained electro-hydraulic valve actuators and damper drives offering superior performance.
The product has developed a reputation as the premier performer in demanding applications across its broad and expanding market segments.
The REXA design can be applied to a wide range of thrust, stroke, torque or rotations.
As a result, our actuators and drives are the most comprehensive available, serving any industry requiring rugged, reliable, repeatable control.

KOSO HAMMEL DAHL is the integration of the Hammel Dahl brand and the advanced technology of its parent company.
It provides a complete line of globe and angle style control valves and over 60 years of design and production experience.
KOSO HAMMEL DAHL offers a full line of top guided, cage guided and specialty valve products to meet a broad array of applications in the automation markets.
The marriage of a REXA Electraulic™ actuator to a KOSO HAMMEL DAHL valve yields an unparalleled final control element, from a single source of supply.