O-rings
- March 23, 2026
Put To The Test: Bevel Vs. Butt Cut O-Rings
Vulcanized o-rings are manufactured by cutting a specific length of cord stock and joining the ends through a vulcanization process. The way those ends are cut, bevel cut or butt cut, directly affects joint strength, sealing continuity, and long-term performance. Understanding how each cut type behaves under compression and motion helps engineers and technicians select the most reliable option for their sealing application.
- February 26, 2026
Mobile cranes perform a wide variety of tasks, typically of the heavy-duty kind. The work they do and the locations at which they operate are frequently exposed to harsh climatic conditions in places with insufficient infrastructure. This means that the sites at which the cranes are positioned and the environment in which they move is often not entirely suitable for this kind of heavy construction equipment.
Accordingly, there are high loads acting on the components, which
- January 26, 2026
How to Properly Measure an O-Ring
Measuring an O-Ring is quite simple when you have the right tools at your disposal. All that is required is a clean, level surface; an o-ring; and a measuring device such as a caliper or other measuring tools such as cones, gauges, and size charts.
Directions to Measure an O-Ring
To measure an O-Ring, following the directions below:
- Place your o-ring on a flat surface clean of debris.
- Determine the inside diameter (ID) and
- December 23, 2025
Kalrez® Bonded Door Seals
Bonded door seals for gate valves and slit valve door seal applications provide improved sealing performance versus conventional O-rings by reducing particle generation, extending seal life, and minimizing replacement time during preventive maintenance.
DuPont™ Kalrez® bonded door seals are designed for easy installation and low particle generation. They combine a custom seal design and proprietary
- December 11, 2025
Article re-posted with permission from Parker Hannifin Sealing & Shielding Team.
Original content can be found on Parker’s Blog.O-Ring Selection Made Easy with the Parker O-Ring Selector
Two things are equally important for the reliable performance of an O-Ring seal: the right size and the right material. Parker’s O-Ring Selector is an engineering tool that enables users to make the right material and size selections easily, quickly and reliably – in a single application. The accuracy of the results ensures the desired performance of the O-Ring in the subsequent application. This is primarily based on the fact that both functionalities – the material selection and the O-Ring size calculation – are closely interlinked. This achieves a new quality in calculating the total sealing system.
Overview of the O-Ring Selector
The Parker O-Ring Selector is divided into three main sections:
- Service Conditions & Material Selector
- Size Selector
- Notes
The Service Conditions & Material Selector section is focused on mapping the material-related application conditions. Entering the operating temperature range, the desired polymer family and/or material hardness will take the user to the suitable material selection. The Advanced Material Selector enables experienced users to specify the operating conditions in even greater detail. Here the medium to be sealed can be selected from a database containing 2,500 media. In addition, a search for required approvals and conformities can be run.
- September 22, 2025
Protect Your Seal Aftermarket with Part Identification Technologies
Parker is revolutionizing part identification technology with a multitude of options. Customers are able to benefit from various identification methods such as non-permanent and permanent part markings by selecting their part number and company logo on the seal. For more advanced identification, a customer may opt to use the Parker Tracking System or utilize our RFID seals for tracking purposes. These identification methods ensure product authenticity and reduce seal installation errors by providing visual indicators for the assembly process.
Basic part marking – non-permanent identification
Non-permanent markings are applied to the surface of the seal and can be in the form of a company logo, unique part number, barcode, or other seal information. Non-permanent markings ensure Parker’s part origin, enables part level traceability and provides an easily visible cue to operators. This value-added feature helps reduce installation errors in addition to protecting customers against counterfeit seals.
- September 11, 2025
When it comes to sealing solutions, choosing the right O-ring is critical, and one of the most important factors to consider is shore hardness. But what exactly does this term mean for your project?
Shore hardness refers to the measurement of how hard or soft the material of an O-ring is. It directly impacts how well the O-ring can withstand pressure, resist deformation, and
- September 02, 2025
Extrusion-Resistant Nitrile O-Rings: Reliable Sealing for High-Pressure Boss Fittings
In aerospace and defense applications, sealing performance can make the difference between mission success and costly downtime. O-rings used in hydraulic systems must be able to resist extrusion under high pressures, perform reliably in low temperatures, and maintain compatibility with standard aerospace fluids.
That’s exactly what
- August 13, 2025
Precision Manufacturing for Oversized Seals
While standard-sized seals are essential for everyday machinery, many industries rely on oversized seals to maintain system integrity in large-scale equipment. Oversized seals present unique challenges in manufacturing, handling, and precision machining, requiring specialized equipment and processes. We prioritize producing high-quality, precision-engineered seals of all sizes, including oversized, at Gallagher Fluid
