Pump Parts

Balls & Seats
Barrels
Guide, Valve Rod, API
Guide, Valve Rod, 8-Port
Hold-Downs
Insert Cage
On/Off Tool
Pickup Sub
Rod Pump Plungers
Spiral Guide
Spool Check Valve
Sucker Rod Couplings

Production Accessories

Polished Rod Liner
Pressure Control Regulator
Hydraulic Tubing Drain

Stuffing Boxes

Com-Pac
Dual-Pac
Pollution Control Check Valve
Non-Aligning Union

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.