Disassembly

Unscrew and remove the Bottom Platen and Filter Stem from the Pump Body, being careful not to lose the Check Ball. Remove the Pump Body by unthreading it from the Top Retainer.

Remove the Valve Body from the Bottom Retainer on the Centre Rod (Riser), by pulling the two pieces apart. Be careful not to lose the Check Ball.

Remove the Bottom Platen from the Filter Retainer, and remove the Filter Mesh from the Filter Retainer.

Decontamination

Completely disassemble the pump.

Wash all pump components with phosphate-free soap or a mild detergent.

Rinse all components thoroughly with deionized water and dry.

Replace worn O-rings as necessary, and then reassemble.

The pump’s interior can be cleaned without disassembling by flushing your cleaning solution up and through the pump’s intake. With the pump’s Filter and Filter Retainer removed, use a peristaltic pump connected to the Bottom Platen to push the cleaning solution through the pump. Then flush the interior with deionized water.

Reassembly

Slide the Filter Mesh over the Filter Retainer until seated.

Thread the Bottom Platen onto the Filter Retainer until the O-ring is seated and the parts are finger tight.

Insert a Teflon® Check Ball into the top of the Bottom Platen.

Insert a Teflon Check Ball into the top of the Valve Body.

Slide the Valve Body onto the Bottom Retainer until the O-ring seats firmly.

Slide the Pump Body over the Valve Body and Center Rod and thread onto the Top Retainer until the O-ring seats firmly.

Thread the Bottom Platen with Filter Retainer into the Pump Body until the O-ring properly seats.

® Teflon is a registered trademark of DuPont Corp.