Piston Seals

Parker piston seals for hydraulic and pneumatic cylinders and actuators are designed to separate applied pressure between the piston and the rod side during the stroke movement. They are available as single-acting and double acting seals in a wide range of compound and profile configurations to meet diverse applications: high and low temperatures and pressures, a wide variety of media, harsh operating conditions, various friction requirements, etc. Parker piston seals can cover working temperatures from -50°C to 230°C and working pressures up to 800 bar. Some seal profiles are insensitive to extreme pressure peaks. There are piston seals available that comply with ISO 6020, ISO 5597 and ISO 7425-1 standards.

 

Complete piston with integrated seals Pradifa series DE

Complete pneumatic piston with mechanical cushioning function, single-acting.

Complete piston with integrated seals Pradifa series EK

Complete pneumatic piston, single-acting.

Piston seal Pradifa series C2

Piston seal for hydraulic and pneumatic cylinders, single-acting, rubber u-cup design.

Piston seal Pradifa series E4

Piston seal for pneumatic cylinders, single-acting. U-cup design.

Piston sealing set Pradifa series M4

Piston sealing set for hydraulic cylinders, single-acting. Large variety of working conditions.

Piston seal Pradifa series MK, Ultrathan®

Piston seal for pneumatic cylinders, single-acting. U-cup design with integrated guiding function and cushioning buffers.

Piston seal Pradifa series B7, Ultrathan®

Piston seal for hydraulic cylinders, single-acting, polyurethane u-cup design. For high-pressure applications. Robust seal profile for harshest operating conditions. ISO 5597, ISO 6020.

Piston seal Pradifa series B8, Ultrathan®

Piston seal for hydraulic cylinders, single-acting, polyurethane u-cup design with additional back-up ring. For high-pressure applications. Insensitive to extreme pressure peaks.Robust seal profile for harshest operating conditions. ISO 5597, ISO 6020.

Piston seal Pradifa series Z7

Piston seal for pneumatic cylinders, single-acting. U-cup design with integrated guiding function. High-temperature version available.

Piston seal Pradifa series BHO, FlexiSeal®

Piston seal. Outside dynamic sealing on reciprocating rods. FlexiSeal. Spring-energized PTFE seal. High-pressure.

Piston seal Pradifa series Z8

Piston seal for pneumatic cylinders, single-acting. U-cup design. Short axial length.

Piston sealing set Pradifa series KS, Ultrathan®

Piston accumulator sealing set for media separation gas/fluid. Extremely wear resistant and superior leak tightness. Polyurethane u-cup design.

Piston sealing set Pradifa series NG

iston sealing set for hydraulic cylinders, single-acting.

Piston sealing set Pradifa series OG, Polon®

Piston sealing set for hydraulic cylinders, single-acting, PTFE slipper seal design. Low friction. For high-pressure applications. ISO 7425.

Piston seal Pradifa series BAO, FlexiSeal®

Piston seal. Outside dynamic sealing on reciprocating rods. FlexiSeal. Spring-energized PTFE seal. Axially short design.

Complete piston with integrated seals Pradifa series DK

Complete pneumatic piston, double-acting.

Complete piston with integrated seals Pradifa series DP

Complete pneumatic piston with mechanical cushioning function, double-acting.

Complete piston with integrated seals Pradifa series DR

Complete pneumatic piston with inductive position interrogation and mechanical cushioning function, double-acting.

Symmetrical Rod and Piston Seal Pradifa series BA, Ultrathan®

Rod seal for hydraulic cylinders, single-acting, polyurethane compact PARK-O-PAK® design. For high-pressure applications. Robust seal profile for harsh operating conditions.

Symmetrical Rod and Piston Seal Pradifa series SA , Ultrathan®

Rod seal for hydraulic cylinders, single-acting, polyurethane compact PARK-O-PAK® design. For high-pressure applications. Robust seal profile for harsh operating conditions. Short axial assembly length.

Symmetrical Rod and Piston Seal Pradifa series TA, Ultrathan®

Rod seal for hydraulic cylinders, single-acting, polyurethane compact PARK-O-PAK® design. For high-pressure applications. Robust seal profile for harsh operating conditions. Long axial assembly length.

Piston sealing set Pradifa series OA, Polon®

Piston sealing set for pneumatic cylinders, double-acting, PTFE slipper seal design. Low friction.

Piston sealing set Pradifa series OE, Polon®

Piston sealing set for hydraulic cylinders, double-acting, PTFE slipper seal design. Low friction. For high-pressure applications. ISO 7425.

Piston sealing set Pradifa series CP, Caveseal®

Piston sealing set, double-acting, PTFE slipper seal design. Low friction. Suitable for o-ring grooves. For limited dynamic conditions.

Piston sealing set Pradifa series KR, Ultrathan®

Piston seal for hydraulic cylinders, double-acting. Polyurethane slide ring design. Superior leak tightness. ISO 7425.

Piston sealing set Pradifa series OK

Piston sealing set for hydraulic cylinders, double-acting. Slide ring design. For high pressures and extreme pressure peaks. ISO 7425.

Piston sealing set Pradifa series OT

Piston sealing set, slipper seal, double-acting, especially suitable for aggressive media and/or high temperatures

Piston seal Pradifa series PZ

Piston seal for pneumatic cylinders, double-acting. Short axial length.

Piston seal Pradifa series Z5

Piston seal for pneumatic cylinders, double-acting. U-cup design with integrated guiding function. High-temperature version available.

Piston sealing set Pradifa series ZC

Piston sealing set for hydraulic cylinders, double-acting. Three-piece design. For high pressures and extreme pressure peaks. Robust design with extreme wear resistance.

Piston sealing set Pradifa series ZP

Piston sealing set for hydraulic cylinders, double-acting. Three-piece design. For high pressures and extreme pressure peaks. Robust design with extreme wear resistance.

Head seal Pradifa series NLA, FlexiSeal®

Symmetric head seals design. FlexiSeal. Spring-energized PTFE seal.

PolyPak Hydraulic Seal with Beveled Lips (BPP)

Parker’s BPP Profile, Beveled Lip Type B PolyPak® hydraulic seal is a rectangular shaped symmetrical squeeze seal with a knife trimmed beveled lip for hydraulic rod and piston sealing.

Deep PolyPak Hydraulic Seal with Knife Trimmed Scraper Lips (DPP)

Parker’s DPP Profile, deep PolyPak® hydraulic seal is a rectangular shaped symmetrical squeeze seal with knife trimmed scraper ID and OD lips for rod and piston sealing.

PSP Profile, Double-Acting Hydraulic Piston Seal

Polyurethane piston seal for light- to medium duty, bi-directional hydraulic applications

BP Profile, Double-Acting Hydraulic Piston Seal

Resilon® polyurethane piston seal for medium- to heavy duty, bi-directional hydraulic applications. Wear resistant, extrusion resistant and extended temperature capable.

Light Load U-Cup Seal with Beveled Lip (8400)

Light load symmetrical U-cup with knife-trimmed beveled ID & OD lip for rod and piston sealing applications.

Low Friction FlexiSeal with Beveled Lips (FBC-V)

Low friction symmetrical spring-energized PTFE lip seal for rod and piston sealing applications. Beveled ID & OD style lips. Cantilever spring for maximum ID & OD sealing.

Bonded Piston Seals

Parker's Bonded Piston Seals lower total system costs, reduce weight and save space. The one-piece design eases assembly and promotes long service life. Our bonded seals easily incorporate check valves, metering orifices, spring retainers and more.

Light Load U-cup Seal with Straight Cut Lips (8500)

Light load symmetrical U-cup with knife-trimmed straight-cut scraper ID & OD lip for rod and piston sealing applications.

D-Rings

Parker's D-Rings provide a cost effective alternative to traditional sealing in radial seal applications. They can be used in static, reciprocating or oscillating applications in the most extreme environmental conditions.

Lip Seals

Parker's lip seals offer a wide range of benefits for many applications and markets. Such as low load or low closure force as well as a self-energizing requirements.

Low Drag D-Rings

Parker's Low Drag D-rings provide a cost effective alternative to traditional sealing in radial seal applications where low friction environments are critical. D-Rings can be used in static, reciprocating or oscillating applications.

Piston sealing set Pradifa series ZW

Piston sealing set for hydraulic cylinders including guide rings, double-acting.

PTFE Chevron Stacks Pradifa

Chevron sealing set, single-acting. Consists of a radial FlexiSeal®, followed by several V-rings and an anti-extrusion ring.

CT Profile, 4-Piece PTFE Cap Seal

Four-Piece Rubber-Energized PTFE Cap Seal With Anti-Extrusion for Heavy Duty Hydraulics

Typical single lip U-cup piston seal : B7

Piston seal for hydraulic cylinders, single acting, polyurethane u-cup design.

Double acting composite PTFE piston seal: CT

Piston Seal,Double Acting,PTFE

Double acting PUR composite piston seal: OU

Piston Seal,Double Acting,Polyurethane

Standard PolyPak Hydraulic Seal With Knife Trimmed Scraper Lips (SPP)

Parker's hydraulic SPP Profile standard PolyPak® seal is a square shaped, symmetrical squeeze seal with a knife trimmed scraper lip for hydraulic rod and piston sealing.

LCD Profile, Piston Seal for Oil and Gas Drilling and Pressure Control

Single-acting seal for oil and gas applications. High-squeeze geometry and specialized multiple sealing lips deliver robust leakage control for longer life, corrosion resistance and stability. Sour gas, API 6A, 16C HNBR and FKM materials.

HGP Profile, Frac and Mud Pump Suction or Discharge Seal

HGP for frac and mud pumps provides extended service life of suction and discharge cover seals, while providing improved protection of sealing surfaces from aggressive fracking fluids and proppants.

Piston Seal Pradifa series LK for Aviation, Polon®

Piston seal for aviation applications, two-piece design, double-acting, for grooves according to AS4716 (MIL-G-5514).

S-Seal Profile for HTHP Sealing (PSSP)

Parker’s S-Seal is engineered to meet the rigorous sealing challenges encountered in high pressure and high temperature (HTHP) Energy, Oil & Gas (EOG) applications.

T-Seal for Oil and Gas Applications (Pradifa)

Parker’s T-Seal is used in a wide range of applications in the oil a gas industry such as running tools, wellhead, valves, actuators and BOPs.