Polished Rod Liner Assemblies

Polished Rod Liner Assemblies are manufactured from select materials to conform to Dura’s rigid specifications. The liner surface is Metal Sprayed to increase hardness and liner life, and the interior is Epoxy Coated to protect against corrosion. The OD is ground and polished to a mirror like finish to assure maximum stuffing box packing life. The Packing Head is welded on to the liner to ensure a leak free connection. The liner head is attached to the Polished Rod with three set screws to ensure alignment. A Packing Ring in the liner head seals against the Polished Rod to reduce the chance of moisture entrapment between the liner and the Polished Rod.