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Hydraulics and Pneumatics (EPS)

Hydraulic and Pneumatic Seals are the worldwide standard for reliability and highest performing sealing devices. We offer a wide range of compounds and cross-sections to fit most application needs, for both new and worn equipment.Our complete line of seals virtually ensures that the air and oil that power such diverse equipment as control valves, actuators, reciprocating pumps, propulsion outdrives, and cargo elevators remain inside the cylinder, pump,or hose. Plus,we pride ourselves on our ability to provide custom engineered solutions to even your toughest sealing requirements.

Rotary Seals

30K Continuous design, high performance lip seal

Chesterton® 30K’s lip seals are high performance lip seals that are ideal for dynamic rotary seal applications. These seals provide excellent service in bearing and gear box applications that utilize conventional oil lip seals. The unique 30K seal lip seal design is mechanically formed to provide optimal sealing force and is available in 4 distinct PTFE materials developed specifically for sealing applications.

Rod Seals / u-cups

10k Single-acting, u-cups for hydraulic/pneumatic presses 
Chesterton® 10K Super Monoseal and 22KN are single-acting, u-cup designs. The positive rake, lip profile provides an optimal amount of radial sealing load with minimal frictional resistance. This seal design is offered as a rod or piston seal and provides outstanding performance in both hydraulic and pneumatic applications.

Rod seals / stacked sets

600 Single acting, split stacked hydraulic set for worn equipment

Chesterton’s 600 Parachute Packing is a V-ring set for Hydraulic applications. It provides an economical means of sealing older worn equipment. It is particularly adaptable to deep stuffing boxes and odd sized rams where equipment cannot be disassembled.

Ancillary Devices

18K Replaceable, split bearing bands for cylinders 
Chesterton® replaceable Bearing Bands are the solution to costly cylinder re-machining and repairs for hydraulic or pneumatic equipment. These split, replaceable bearings prevent metal to metal contact of moving parts and help prolong equipment life. The easy to use split 18K and 19K designs are manufactured from glass fiber reinforced heat stabilized nylon. These bearings reduce radial movement therefore helping to extend seal life

Spring Energized Seals

500 Series High performance, multi-purpose stacked sets

High performance, multi-purpose stacked v-rings sets specifically designed to accommodate hardware with deep stuffing boxes. These stacked sets are used in both rotary and reciprocating applications and are available in solid and spilt designs depending upon your application requirements.

Hydraulics & Pneumatics Seals

33K Split Bearing Protection Seal

Chesterton® patent pending 33K’s split rotary seal design can be used on in many non-pressure applications including bearing protection for pumps, gearboxes and rollers. The innovative 33K split design eliminates the need and associated costs for equipment disassembly while improving seal performance of conventional lip seals. Installation time can be reduced from hours to minutes because the split assembly is unitized installing quickly and easily.