o-ring
- April 04, 2024
Gallagher Fluid Seals is a Parker Distributor is proud to be 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 function of gland design and seal cross section which determines the correct amount of squeeze (compression) on the O-ring to maintain seal integrity without excessive deformation of the seal element.
Factors contributing to compression set failure of an O-ring seal:
1. Selection of material with inherently poor compression set properties.
2. Improper gland design.
3. Excessive temperature developed causing the O-ring to harden and lose its elastic - 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 CenterIncorrect O-ring installation can lead to assembly damage causing leakage during the first pressure test. If the system does not pressurize properly, the entire piece of equipment should be disassembled and seals must be replaced. Depending on when this test occurs, multiple manufacturing steps could be in between the seal installation and the first step where leakage can be identified. If O-ring damage happens with high frequency, you could be wasting time and money
- October 11, 2023
Gallagher Fluid Seals is a Parker Distributor is proud to be 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.
Can O-rings be used in rectangular or non-circular groove patterns? This question comes up weekly, and the answer is a resounding
- 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. The flash lines (a line of excess material where the compression mold tool comes together) on an O-ring is always on the outer most diameter, which consequently is a sealing surface. On a Quad-Ring™, that flash line is on the inside of the two outer lobes; therefore, it does not effect the sealing lips.
- The Quad-Ring™ is more stable in dynamic applications. It is also more resistant to rolling as it has a wider footprint and takes up the corners of the hardware
- 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.
Evolution of the Channel Seal
Before the Channel Seal, the Backup ring was established. The first Backup rings started out as leather,
- 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 and shorten the seal’s life. Internally lubricated seal materials provide a clean alternative to grease or oil in an assembly operation.
This blog will discuss how they work and the benefits of internally lubricated o-rings.
- 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 of repair and refurbishment of mechanical seals as opposed to purchasing new ones. It can be more cost effective in many situations, and can make your old seals look just like new.
But what does a repair and refurbishment of a single cartridge mechanical seal look like?
- 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 which kind of failure mode the seal experienced.
Then, Ben will dive into the first two O-ring Failure modes.
- August 26, 2021
Part 4 - Basics of O-Rings - O-Ring Profiles
We are excited to present to you part 4 of our O-ring webinar series. For this portion, Benjamin Mell, GFS Application Engineer and Regional Sales Manager, will delve deeper into specific O-ring profiles. While a traditional O-ring has a circular profile, additional O-ring profiles and sub categories have evolved over the years to solve specific application challenges. We are going to review each of these profiles and their benefits.
Part 4 will discuss:
1. Standard O-rings
2. Cord-Rings
3. Quad Rings® / X-Rings
4. Encapsulated O-rings
5. Hollow O-rings
- August 10, 2021
Part 3 - Basics of O-Rings - Core Applications
A static seal is one that remains stationary. And in a truly static seal, the mating gland parts are not subject to relative movement. Most O-ring applications are static.
But what happens when there is relative motion? That's where dynamic seals enter. In this new video webinar, Ben Mell, Regional Sales Manager at Gallagher will discuss reciprocating seals, rotary seals, o-ring design, and common applications to consider throughout the design process.