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Metso ESF seal for less water consumption

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article image Metso's new ESF mechanical slurry seal for heavy duty slurry pumps

The demand for sealing for heavy duty slurry pumps is rising, with customers asking for a seal that will reduce water consumption.

Customers are requesting for installation of  mechanical seals into tougher applications for environmental reasons.

To meet this demand Metso is launching the new ESF mechanical slurry seal for heavy duty slurry pumps with just this in mind.

The company has focused on offering a sealing solution that curtails dilution of sealing water into the product, eliminates leakage to atmosphere, boosts lifetime of the seal by preventing slurry from entering the seal chamber and allows easy conversion from box packing solutions to mechanical seal solutions.

The new ESF design seals meets the needs of advanced and reliable sealing solutions on even the heaviest of slurry applications usually found on mining sites.

The slurry pumps are designed for easy installation and maintenance and have a long life. They have high operational performance using minimum power. They have total ease of service.

The slurry seal ESF is made to fit into the standard Orion Series pump flushed gland housing. A convenient seal adaptor is used for the VASA HD. The cartridge design makes for easy installation. The retrofit installations are quick and easy when converting a packed seal pump.

It comes with tungsten carbide seal faces as standard and gives longer life for the tougher applications. The flushed gland port with the internal chamber produces a barrier of clean continuously replenished fluid to prevent slurry material from spreading to the seal faces. This also increases the life of the seal.

It comes with radial lip seal to ensure the seal runs in a clean water environment. Centring clips are self-storing and are used to keep the seal faces in position when impeller to casing clearance is adjusted.

The company has also found a way to reduce repair costs on the ESF by creating O-ring mounted seal faces that can be replaced in the field without special tools.

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