Improve Sealing Performance & Longevity with Press-in-Place Seals

April 28, 2020

Designed to withstand a variety of environments, Parker’s Press-In-Place (PIP) seals fit into complex groove patterns and tight packaging spaces. They are available in most materials and three types of manufacturing processes: molded, extruded, and lathe cut. Customizable to meet required seal loads, compliance, chemical resistance, and temperatures, PIP seals provide flexibility for designers.

We can rapidly prototype standard PIP seal sizes in select Parker compounds and materials, including:

  • Ethylene Propylene (EPDM)
  • Acrylonitrile Butadiene (NBR)
  • Hydrogenated Nitrile Butadiene (HNBR)
  • Fluorocarbon (FKM)
  • Perfluoroelastomer (FFKM)
  • Silicone (VMQ)
  • Fluorosilicone (FVMQ)
  • Polychloroprene (CR)
Press-In-Place Standard Groove Dimensions
Millimeters Max Draft Per Side
Width Height Groove Tolerance Max Gap Radius
2.00 3.00 ± 0.10 0.10 0.25
2.40 3.50 ± 0.10 0.20 0.25
2.75 4.00 ± 0.15 0.20 0.35
3.00 4.50 ± 0.15 0.30 0.35
3.50 5.00 ± 0.15 0.40 0.50
4.00 6.00 ± 0.20 0.50 0.50

Benefits of PIP Seals

  • Retaining features help to maintain the seal in its gland, providing extra squeeze and eliminating lost seals
  • Quick and accurate installation allows for easy serviceability
  • Multiple seals of different configurations can be consolidated into one, reducing manufacturing and purchasing complexity
  • Retrofitting for existing standard seal glands improves design efficiency
  • Simplified groove patterns enable cost-effective housing construction

In addition, Press-In-Place seals have no flash, voids, or parting lines; a large contact surface area; maximum seal retention; and minimal tooling costs when using the lathe cut manufacturing process.

Zatkoff Seals & Packings commissioned a third party to conduct a finite element analysis (FEA) during the development process to guarantee sealing effectiveness of PIP seals when mating imperfect surfaces.

To learn more about the FEA process and how to determine the best press-in-place sealing solution for your application’s needs, download our brochure.


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