Always In Control

Armstrong is pleased to offer the reliable and hardworking product line: Aeroflow, DBOY, DLO and K-Max control valves and Constantemp steam water heaters to complement our industry-leading steam and hot water system solutions.

Leslie DLO Series Control Valve
Leslie DOS Series Control Valve
Leslie DBoy Control Valve

Control Valves

Our legacy brand Aeroflow, DBOY, DLO and K-Max control valves provide a broad range of flow control solutions for your industry and applications—all manufactured according to the highest standards and engineered to perform under the most demanding conditions.

View All
Leslie Skid Mounted Water Heater
Leslie Feedforward Water Heater
Leslie Controls Steam Water Heater

Steam Water Heaters

Constantemp steam water heaters have an integrally piped, helical designed coil and heat exchanger, with a feed-forward blending valve actuated by differential that is pressure mounted on a heavy-duty steel frame. Fully assembled and piped, with all the necessary traps, strainers and gauges included.

Learn More
Aerial view of oil refinery plant at dusk illuminated by yellow lights

We’re Here to Solve Your Problems and Make Things Easier

Satisfied customers in more than 100 countries rely on Armstrong International for unwavering product support, a knowledgeable sales force, resourceful engineering, and responsive service.

Learn More