A water treatment plant has 4 double-acting plunger pumps.
The average runtime is about 3000 hours.
After 3000 hours a review of the cylinders and plunger take place and costs average € 4395, – / pump
The Sellon solution
Modification of the plunger for mounting an additional bearing strap and mounting Chesterton 7K seals.
The piston rod seal with Chesterton 8K stack seals.
The average lifetime has doubled.
Cost per pump € 386,- on seals.