BALL VALVE – HIGHER ABRASION RESISTANCE

Learn more about our ball valve that was developed to convey fine powders in the dedusting systems of secondary electrostatic precipitators in sintering machines of steel mills.

Válvula esférica

THE ISSUE

The aim was to increase the wear resistance of the ball and improve seal efficiency. The previous valve had a ball with chromium-based cemented carbide coating and a PTFE seal actuated by a disc spring.

THE SOLUTION OFFERED

A new thermal-sprayed coating was developed and applied to the ball and flow guidance in order to offer higher abrasion resistance. In addition to that, we developed a new sealing system using a self-compensating system patented by Uniprest.

RESULTS PRESENTED

The product was tested in the sintering plant for months and showed excellent durability under the most severe abrasion conditions. Neither the ball nor the seal showed apparent wear at the end of the trial period.

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