Connect with us

Tech

Types Of O-Ring Applications

Types Of O-Ring Applications

So far on this blog we’ve discussed O-Ring material and sizes, and the ways in which they can be used.

In this post, we’ll talk about the common types of O-Ring applications, and their impact on O-ring sizing and hardware design.

  • Static Axial Seals

When designing grooves for static axial seals, the first consideration is whether the pressure is coming from inward or outward.

In situations involving outward pressure, the outside diameter of the groove is primary, and the groove width is the primary consideration for the inside diameter. For inward pressure, the inside diameter is primary. This ensures that the O-Ring needs to move the least distance to seal the extrusion gap.

Inside the groove dimension appendix in our O-Ring guide, you’ll find two charts for static axial seals: one for liquids and one for gases and vacuums. Grooves for liquid applications are larger to allow for increased swell. If there are no anticipated swelling issues, the smaller groove dimension can be utilized.

  • Reciprocating Dynamic Seals

O-Rings are used within dynamic reciprocating applications, usually hydraulic or pneumatic piston or rod seals. For short stroke applications, smaller diameter O-Rings perform well. Longer stroke applications require thicker cross sectional O-Rings.

A number of failure modes arise within dynamic sealing applications that are no problem for static O-Rings, a topic we’ll explore in a future blog post.

Surface finishes for the hardware are critical to maximizing seal life and performance. The ideal surface microfinish is between 10 and 20 micro-inches. Anything under five will cause inherent surface lubrication to be wiped away by the end of the stroke. For more information on the types of friction seen in reciprocating applications, please contact a Gallagher engineer.

  • Rotary Seals

O-Rings have proven to be reliable rotary seals under the proper conditions. Adequate durometer, hardware configuration and feet-per-minute values must be matched to the proper O-Ring compound. A shaft hardness value of 55 Rockwell is typically required for a successful rotary O-Ring. There are a handful of specialized O-Ring compounds designed for rotary service.

Contact a Gallagher engineer to learn more about these applications, or for any other questions you have about O-Rings.

You can also download our O-Ring design guide, which features information on their discusses their technical performance characteristics, materials, chemical and temperature compatibility, and more.

Continue Reading

Recent Posts

Home Improvement1 week ago

Mastering The Maintenance: Breaking Down The Basics Of Your Ducted Heating And Cooling System

Welcome, fellow home enthusiasts! Ever find yourself lost in the labyrinth of your ducted heating and cooling system? Have you...

Business3 weeks ago

The Invisible Hands: Unveiling How Food Distributors Influence the Quality of Our Foods

Ever found yourself wondering why the tomatoes in your salad taste particularly fresh or why your preferred brand of coffee...

Marketing3 weeks ago

Webflow CMS: A Comprehensive Guide

Webflow is a powerful tool that allows you to create and manage dynamic websites without needing to code. It’s a...

Business3 weeks ago

The Three Most Important Benefits You Should Offer To Your Employees

Offering your employees a range of benefits on top of regular salary increases will really help to show that you...

Business1 month ago

Business Tips For Protecting Your Finances During A Recession

In 2024, taking the necessary steps to protect your finances for your business is now more important than ever. The...

Green & Energy2 months ago

Air Conditioning Installation: What You Need to Know

When it comes to getting an air conditioning unit installed, can significantly improve your comfort and home environment, especially during...

Marketing2 months ago

Marketing Tips For A Gym Wear Brand

When starting a gym wear brand, there are a few things you need to do and one of them is...

General2 months ago

Social Media Marketing: What Are All The Types?

Social media marketing is a tool that is a must-have in today’s digital age. it’s very rare that businesses can...

Business3 months ago

How To Become A Property Developer

There are several reasons why an individual will want to become a property developer. One of the main reasons for...

Business3 months ago

Remote Delivery Innovations: Case Studies from Leading E-commerce Brands

People have gone through much change in the past few years when it comes to online shopping. Nowadays, when delivery...

Business3 months ago

Why are Brits turning to online-only banks?

For years, large, conventional banks held all the aces when it comes to citizens’ finances in the UK. HSBC, Lloyds...

5 Important Web Design Considerations to Make For Better SEO 5 Important Web Design Considerations to Make For Better SEO
Tech4 months ago

5 Important Web Design Considerations to Make For Better SEO

Ever since the birth of search engines, practices in optimising websites for better search rankings have changed considerably. Where it...

SEO4 months ago

The Importance of Local SEO for Small Businesses

There are many different types of businesses and all of them will require online marketing however, with a small business,...

General4 months ago

Understanding The Unsung Heroes: Cool Rooms And The Importance Of Regular Repairs

Everybody loves a breath of fresh air when entering a superstore! But have you ever wondered who’s working backstage to...

Home Improvement8 months ago

How To Add More Value To Your Home

If you have some spare cash in the bank, it is likely you would like to spend it on your...

Categories

Archives

Trending