Delivering Fluid Sealing Solutions Since 1972

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Christmas Competition 2018

”WIN A Hamper” Christmas Competition 2018 M Barnwell Services are giving you the chance to win a Fortnum & Mason Classic Christmas Hamper. From Monday 12th November 2018 there will be TWELVE Christmas anagrams hidden within the pages of the M Barnwell Services’ website. To win the prize hamper, all you have to do is find all TWELVE, unscramble the […]

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Exhibitions & Trade Shows

Fluid Sealing Products & Services Trade Shows M Barnwell Services will be attending the following fluid sealing trade shows. Click on each one for more information. January 2019 Name: Lamma Date: 8th – 9th January Industry:  AGRI Location: Birmingham Website: http://www.lammashow.com/ Name: Autosport International Date: 11th – 12th January Industry:  AUTO Location: Birmingham Website: https://www.autosportinternational.com/ February 2019 Name: Southern Manufacturing & Electronics Date: 5th – 7th February Industry:  MRO Location: Farnborough […]

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Gasket Installation Guide

Gasket Installation – Best Practices The performance of a gasket relies on a number of elements, including: Component being sealed Flange design Type and quality of the material How the gasket is installed and tightened onto the flanges The volume of pressure applied to the gasket by the bolts Sometimes, the most basic reason for leakage in bolted couplings is […]

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How does an O Ring work?

What is an O Ring and how does it work? O Ring Basics The O Ring is one of the most standard and easiest types of seal for dynamic and static installations. The design of the O Ring’s groove is fairly straightforward. A dependable and economical seal is acquired by following well-developed principles for groove geometry. The primary reason an […]

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Shore A Hardness

What is a Shore A Hardness and why is it important? What is a Shore durometer? The Shore durometer is an instrument used for measuring the material’s hardness, generally rubbers, elastomers, and polymers. The Shore A hardness measurement is called ‘’durometer’’. Tests are carried out on cured rubber according to ASTM D2240, and on a complete O Ring according to […]

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What is a Gasket?

What is a Gasket and how it works? What is a Gasket? A Gasket is an elastomeric component that covers the intersection between two surfaces. They are usually manufactured from a variety of materials, including rubber, cork or paper, metal, copper, and foam. This flexible element can be used for a broad scope of purposes due to its functionality. These […]

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Temperature range of Viton®

Viton® (FKM/FPM) temperature range Fluoroelastomers are known for their excellent resistance to chemicals and temperatures. They have low compression set, resistance to ozone, very low gas permeability, are self-extinguishing and have remarkable ageing features. Viton® has developed a significant eminence in the sealing industry due to its performance features. Fluoroelastomers are highly fluorinated carbon-based rubbers that are used in installations […]

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Circlips what are circlips

What are Circlips, types of Circlips and what are they used for? What are Circlips? Circlips, Retaining Rings and Snap Rings are fasteners that grasp elements or installations onto a shaft or in a dwelling/bore when assembled in a groove. Once it’s fixed, the exposed piece functions as a shoulder which holds the particular element or installation. Circlips solve problems such […]

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What is Rapid Gas Decompression (RGD)

What is Rapid Gas Decompression (RGD)? What are the causes? How it affects elastomers? What is Rapid Gas Decompression (RGD)? or What is Explosive Decompression (ED)? Rapid Gas Decompression (RGD) is an occurrence that frequently appears whilst high-stress gas particles drift into the elastomer in the concentrated/compressed form. When the stress ambient to the elastomer is quickly relieved, the compressed gas […]

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Why should you use Food-Grade Silicone?

Silicone compliant with Food Regulations, what are the features? There are plenty of options when it comes to sealing materials. However, in the food processing industry, it is very important that each element that interacts with the seal is left untouched. Furthermore, despite the fact that silicone is ‘practically’ non-toxic, only a particularly developed food grade silicone is suitable for […]

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