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To compete in the steel commodities market, steel manufacturers use descaling processing on the steel slab to create the best surface finish. The descaling process must perform at its best throughout the total length of the product to ensure superior surface quality. This puts the following demands on the descaling system:

• Create the best descale impingement with the least amount of water
• Deliver the highest pressure possible to the descale headers; maintain this pressure throughout the strip length
• Work with raw descale water


Continuous Production, Less Downtime

Hunt Valve has developed a wide selection of industrial valve products for descaling systems that meet the above requirements. These products have delivered decades of dependable performance at the world’s leading steel production facilities.

Our critical-service descale valves range from descale spray valves to pump bypass valves and header pre-fill valves. Choose Hunt Valve for reliable, continuous production with the least amount of downtime at your rolling mill.

State-of-the-Art Poppet Design Includes Ceramic Seating and Electromechanical Actuation

Hunt Valve’s proportional poppet valve for descaling applications lasts three to five times longer than traditional poppet valves. By eliminating the effects of water hammer and system shock, this innovative poppet valve technology promotes safety, reduces annual operating costs and decreases unscheduled downtime in the plant.descale valve

The proportional poppet descale valve incorporates ceramic seating surfaces on the poppet and seat that prevent wear from the fluid flow. Optimizing the valve’s useful service life, the full ceramic seat is three to five times more durable than conventional seat materials.

The proportional poppet valve’s electromechanical linear actuator avoids the maintenance and reliability issues commonly associated with all types of media-actuated valves. Unlike traditional poppet valves that use dirty descale water as a hydraulic media to shift the main valve, the proportional poppet valve is not a wetted part and is totally isolated from the descale water. Since it uses an electrical actuator, it eliminates the moisture and contamination problems associated with pneumatic actuation.

This innovative technology is ideal for all descale applications, including isolation, minimum flow pump bypass, descale header control, accumulator safety shut-off and header pre-fill.

Remanufacturing/Replacements for Hunt Valve’s Legacy Plunger Style Valve Designs

In 1919, Hunt Valve’s reputation as a world-class manufacturer and engineered solutions provider started with its original valve, which was designed with a hollow-drilled, radial-ported plunger. Our modern version of this unique design boasts many advantages—from zero leakage to quick, economical valve maintenance.

For customers who choose not to upgrade to our cost-saving, state-of-the-art poppet technology, we still offer support for our legacy plunger style valves. We’ll continue to support new valve, remanufacturing and spare part requirements for legacy Hunt Valve plunger style descaling products.