Downhole Sucker Rod Pump Seals

For downhole sucker rod pump applications

Garlock LubriKup® Sealing products including flange rings, split rings, and pressure actuated rings.

Engineered composition ring that resists swell
LUBRIKUP® RESISTOIL flange and split rings are made from a special composition of neoprene and cotton duck. Engineering a composition ring that resists swell was another LUBRIKUP® first.

LubriKup® Type HR Seating Cups are molded to the proper density and ensure a precise fit in accordance with API standards. Type HR Seating Cups are available in Regular Composition, Hi-Temp, and Nylon-Plastic.

LubriKup® Type O Seating Rings are molded with the same precision as the Type HR seating cups and are made in a similar design, with the exception that the clamping flange is omitted. Type O Seating Cups are available only in Nylon-Plastic.

Both types are available in most common sizes.

    • Fabric Reinforced Materials

      • Style 667 - Industry Standard      Density:  Hard      Max. Temp.:  250° F (121° C)
      • Style 749 - Premium Grade         Density:  Hard      Max. Temp. : 300° F (149° C)

      Lo-Friction Materials 

      • Style 100  Density:  Hard      Max. Temp.: 250° F (121° C)
      • Style 500  Density:  Hard      Max. Temp.:   300°F (149°C)

The LubriKup® PA ring is designed to give superior service in the time-tested pressure-actuated plungers used extensively in the oil industry. Field testes have shown excellent ring life and high pump efficiency.

      • Precision-molded nylon-plastic material
      • Resistant to hydrocarbons
      • Available in all popular sizes, from 1-1/4in (32mm) to 2-1/4in (57mm)
      • Temperature Capability: -40°F (-40°C) to 350°F (177°C)
      • No special tools needed for installation

LubriKup® Type B flange and split-composition rings are made from a blend of duck and rubber specially compounded for oil well pumping. Each ring is precision-ground to assure uniformity of bearing contact in precision barrel tube or working barrel. The rubber is compounded to resist bloom that gives unnatural swell. The material will resist temperatures up to 270°F (132°C) with excellent results.


LUBRIKUP® Valve Cups are available in API, Lip-Type, and our original Wood-Type designs in hard, medium, and soft densities. Product compositions are cotton duck and rubber, and our premium reinforced material is specially formulated for LUBRIKUP®, along with our Lo-Friction material.

      • Fabric-Reinforced

        • Style 537     Density: Soft    Max. Temp.:  250° F (121° C)   Depth: Shallow wells, appr. 600 ft. (183 m)
        • Style 397     Density: Medium    Max. Temp.:250° F (121° C)  Depth: To 2000 ft (610 m)
        • Style 137     Density: Hard        Max. Temp.:250° F (121° C)   Depth: Greater than 2000 ft (610 m)


        • Style 378       Density: Medium    Max. Temp.:250° F (121° C)    Depth: To 2000 ft (610 m)
        • Style 218       Density:Hard        Max. Temp.:250° F (121° C)    Depth: Greater than 2000 ft (610 m)


        • Style 58      Density:  Soft     Max. Temp.:200° F (93° C)    Depth:Shallow wells, appr. 600ft. (183 m)
        • Style MS-15   Density: Medium    Max. Temp.:300° F (149° C)   Depth: To 2000 ft (610 m)
        • Style 24        Density:Med./Hard    Max. Temp.: 300° F (149° C)    Depth: To 2000 ft (610 m)
        • Style 500      Density: Medium    Max. Temp.:300° F (149° C)   Depth: To 2000 ft (610 m)
        • Style 24        Density:MedHard   Max. Temp.:300° F (149° C)   Depth:  Greater than 2000 ft (610 m)

The basic ingredient of all Lo-Friction materials, except the soft Type #58, is nylon-plastic. Nylon has general characteristics of strength, toughness, and resiliency, plus abrasion and corrosion resistance. It also has a low coefficient of friction. Because of its high melting point, it is very good for operations requiring higher-than-normal heat resistance.