That doesn´t get out of control

Diana Völkel (Marketing/PR)
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Butterfly valves for use in form- and core-shooting machines in the air-flow process

The seat and valve discs wear out extremely quickly due to the extremely sharp-edged quartz sand mixed with binding agents. The foundries and core-making shops are investing a great deal of time and effort in renewing the parts, which only leads to a short-term resumption of production, but does not significantly improve the service life.

EBRO ARMATUREN has developed a valve for this complicated application which is now very successfully in use and, depending on the switching cycles, can achieve a service life of more than one year: The "INFLAS®", a soft-sealing EBRO butterfly valve with inflatable seat. This mode of operation ensures that parts in contact with the media, such as cuff and disc, are less stressed by the abrasive quartz sand. Features such as the cascade shaft seal, which protects against contamination in the shaft area, and extremely wear-resistant materials round off the suitability of this valve.

EBRO Butterfly Valve  Z 011-A INFLAS
EBRO Butterfly Valve Z 011-A INFLAS

The INFLAS soft-sealing butterfly valve has a service life of around one year and is therefore particularly wear-resistant.

The cascade sealing of the EBRO butterfly valve offers additional safety.

To prevent the air pressure escaping via the collar into the shaft area, EBRO-INFLAS valves in core shooters are equipped as standard with an elaborate cascade shaft seal.

Valve disc after use in a core shooter

The valve disc of a conventional valve after removal from a core shooter. The wear clearly shows that this valve is no longer gas-tight.

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