parker hannifin

O-ring/back-up ring combinations have long been considered the industry standard for static applications at high pressures. In field use, however, they may show weaknesses with respect to their installation and operation in the application. Standard O-rings  are often prone to twisting, while back-up rings are oftentimes not installed in the proper position or damaged during installation. Furthermore, this sealing combination may exhibit deficits when exposed to pulsating pressures and dirt. Parker has developed the HS radial seal profile as a viable alternative to to conventionally used O-ring/back-up ring combinations for static sealing applications at high pressures.

The robust symmetrical seal geometry and use of particularly extrusion-resistant Parker polyurethane compounds not only simplifies installation but also enhances the sealing effect in pulsating pressure conditions. As a result, service life is significantly extended.

Article re-posted with permission from Parker Hannifin Sealing & Shielding Team.  Original content can be found on Parker’s Blog.

This is the second in a series of video blog posts telling viewers

Hollow O-rings have long been used in enclosure applications and many other static applications.

Parker TechSeal Hollow O-rings can extrude, splice, and vulcanize extremely large o-rings that would be too costly to mold.  Their dimensions can

Gallagher is regularly a top 10 Parker distributor, stocking standard parts in its King of Prussia, PA and East Longmeadow, MA branches. The Gallagher engineering department also works with Parker engineers to create custom sealing solutions for our customers.

Parker provides a wide range of specialty elastomers to accommodate the various critical sealing challenges presented by the life sciences industry. Selecting a suitable material is critical to patient health. For this reason, the FDA provides a standard (21 CFR177.2600) defining allowable rubber compound ingredients and extractibles based on toxicity and carcinogenicity.

Today’s aerospace, heavy duty and industrial markets are constantly pushing the boundaries of performance in their products. Parker Hannifin’s Composite Sealing Systems Division is working directly with manufacturers to provide industry leading tensile strength, pliability, and fire resistance.

Parker is able to achieve these requirements by expanding their product offerings with fabric coated or infused rubber. Reinforcing an elastomer with fabric increases the durability and longevity of a part along with added flame and abrasion resistance.

Much like Gallagher, Parker Hannifin continues to expand their product offerings to help customers meet the demands of a constantly evolving world.