o-rings
- 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.
- June 01, 2025
Spring-Energized Metal Seals Help Protect Equipment
Spring-energized metal seals provide numerous advantages in oil and gas applications, including but not limited to MWD and LWD tools, couplings, subsea compressors, enclosures/vessels, christmas trees, electronic submersible pumps and flowmeters. Extreme operating pressures and temperatures, together with more difficult resource recovery, zero tolerance for failure and environmental concerns, are placing unprecedented demands on this equipment.
- May 12, 2025
Here at Gallagher Fluid Seals, we provide O-rings to almost every industry you can think of: fluid power, chemical processing, aerospace, energy oil & gas, life sciences, pulp & paper, etc.
The thing with an O-ring is as long as it’s doing its job, you never really even know it’s there. It is only when an O-ring starts to fail and a leak develops that you investigate the problem.
One of the key causes of O-ring cracking is ozonolysis
- February 25, 2025
Continuous Molding Technology Enhances O-Ring Performance
Historically, technology to produce large diameter molded O-Rings has been limited by press and molding capabilities. One of our suppliers, Parker Hannifin, created a proprietary continuous molding technology which ensures the strength and reliability of large diameter FKM, HNBR, NBR and EPDM O-Ring seals.
- October 11, 2024
Diagnosing Damaged O-Rings
Making sure you have the right O-ring is critical to avoiding leakage in your product or machinery. But if an O-ring fails, do you know how to diagnose the problem? Can you tell the difference between wear and compression set problems in a flattened o-ring? Identifying the right root cause is critical to solving the problem of damaged O-rings. Watch the video below to learn how to diagnose some
- July 02, 2024
Gallagher Fluid Seals is a Parker Distributor and is proud to be one of the few premier distributors to qualify as a “Parker Seal Technology Center (STC)”.
Reduce Maintenance Costs When Sealing Dry Running Equipment
Pneumatic tools are common in factories, tool shops, and DIY garages around the world. Using compressed air for power is convenient, simple, and — when maintained properly — safe and efficient. However, air treatment costs can add up fast. Traditional
- April 04, 2024
Gallagher Fluid Seals is a Parker Distributor and is proud to be one of the few premier distributors to qualify as a “Parker Seal Technology Center (STC)”.
Compression Set Failure Mode in O-Rings
Probably the most common cause of O-ring failure is compression set. An effective O-ring seal requires a continuous “seal line” between the sealed surfaces. The establishment of this “seal line” is a
- October 11, 2023
Gallagher Fluid Seals is a Parker Distributor and is proud to be one of the few premier distributors to qualify as a “Parker Seal Technology Center (STC)”.
Article re-posted with permission from Parker Hannifin Sealing & Shielding Team. Original content can be found on Parker's Blog.
- December 29, 2022
In the world of engineering, machinery, and mechanical systems, dust can be the difference between a reliable piece of equipment and disaster.
Dust can cause major damage to cylinder walls, rods, seals and other components inside of machinery. And if you’re not careful, dirt, mud, debris, and water can all cause damage as well.
These foreign contaminants are real problems for mechanical systems, especially as they build up in small quantities over time. A single particle of dust today
