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Model 570 Duplex Strainers

Zurn Industries Duplex Strainers

    

model 570 duplex strainerEaton model 570 duplex strainers have a long and well established application history.  The Hayward Filtration division acquired the automatic strainer and multiple basket strainer product line from Zurn Industries in 1986 and then Eaton's Filtration Division acquired Hayward's alloy industrial filtration products in 2005.

 

Eaton offers the model 570's in cast iron and cast carbon steel materials and they are specifically designed for high flow rate pump suction applications because their multiple side-entry basket design ensure a low differential pressure.  Eaton model 570 duplex strainers are available for 8" to 24" pipelines.

 

The diversion of flow is accomplished by a pair of linked sliding disc valves manually actuated via hand wheels and having a fully enclosed valve stem.

 

The Eaton model 570 has an ergonomic basket chamber design; rather than using one large basket per chamber, there are four smaller baskets per chamber.  Especially with larger pipelines, single basket designs often require overhead lifting equipment to lift the basket from the chamber and similarly are difficult to clean and replace into the strainer body.  The four basket design  eliminates the need for an overhead lift, enabling personnel to physically lift and clean the baskets without difficulty.  Using multiple elements also maximizes the open area ratio and the amount of material that can be removed before cleaning is required.

 

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