o-ring
- 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
- January 21, 2025
Enhancing Performance and Safety of Static Radial Seals
O-ring and back-up ring combinations have long been the standard for static applications requiring high-pressure sealing. However, real-world applications often expose limitations, including installation challenges and performance issues. Standard O-rings may twist during installation, while back-up rings can be incorrectly positioned or damaged. These issues are further compounded by exposure to pulsating pressures and contaminants,
- 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
- January 08, 2024
Article re-posted with permission from Parker Hannifin Sealing & Shielding Team.
Original content can be found on Parker’s Blog.
Gallagher Fluid Seals is a Parker Seal Technology Center - 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.
- February 07, 2023
Quad-Ring vs O-Rings - What makes them better?
The O-ring is a doughnut-shaped circular cross section seal that can be used nearly anywhere in the sealing industry. The Quad-Ring™, a 100% retrofit option for any O-ring application, can and will outperform an O-ring in many technical areas.
The Quad-Ring™ has four definitive sealing advantages over an O-Ring:
- Hidden parting lines, or flash lines.
- October 20, 2022
Channel Seals for Hydraulic and Pneumatic Systems
The Channel Seal (or Cap Seal, as it’s often referred to), was one of the earliest forms of Polymer or Teflon sealing in the seal industry.
The product is easily applied. It didn’t replace the O-ring, but instead offered improved life while reducing drag.
In doing so, hydraulic and pneumatic systems operated cooler and quieter, while improving overall performance of the product.
- March 18, 2022
Lubrication is an important, sometimes overlooked, component of sealing. Many applications require lubrication for installation to prevent seal damage and prevent injury during manual assembly. Internal lubricants reduce installation force and dynamic friction without the need for an external lubricant or coating. Internal lubrication also decreases break-out friction for dynamic applications. Operating seals with no lubrication can lead to heat buildup and accelerated wear that can result in leakage
- October 26, 2021
What does a typical repair and refurbishment of a single cartridge mechanical seal look like?
In this new mechanical seal video, GFS Mechanical Seal expert Lino Dimichino, discusses the typical mechanical seal repair and refurbishment process of a cartridge mechanical seal. This important service can help bring new life to your existing mechanical seals without having to purchase a new one.
Many customers of GFS choose to go the route
- October 20, 2021
Part 5 - Basics of O-Rings - Intro to Failure Modes
We are excited to present to you part 5 of our O-ring webinar series. For this portion, Benjamin Mell, GFS Application Engineer and Regional Sales Manager, introduces you to O-ring failure modes. Ben will give a general overview of how and why an O-ring might fail, and how you can determine
