ISO3601-1
ISO3601-1: Inside diameters, cross-sections, tolerances and designation codes ISO3601-1 specialises in the inside diameters, cross-sections, tolerances and designation codes for O Rings used in fluid power systems for aerospace and standard industrial installations. Inside diameters, Cross-sections & Tolerances Tolerances and dimensions defined are adequate for any rubber material if the right tooling is obtainable. In this part of ISO3601, the […]
Read MoreFeatures of Mechanical Seals
Features of a Proper Mechanical Seal Features of Mechanical Seals – Mechanical seals come in an extensive number of structures. Particular designs vary in the method they are operated, the selection of subsidiary seals, and the positioning of the springs. Each mechanical seal has been designed to suit some standards in regards to installation, value, fit simplicity, and ability to […]
Read MoreTypes of Hydraulic Seals
Hydraulic Seals Types Hydraulic and Pneumatic Seals are moulded according to working temperature, cylinder speed, cylinder operating pressure, working application, and medium. They are usually non-metallic, quite soft rings placed in a housing, or arranged in a mixture of rings creating a sealing unit. This is to separate or block liquid in applications that involve reciprocating motion. Hydraulic seals are […]
Read MoreISO3601 Overview
ISO3601 Overview – ISO3601-1, ISO3601-2, ISO3601-3, ISO3601-4 and ISO3601-5 ISO (the International Organization for Standardization) is a global federation of national regulations bodies. ISO3601 is a standard. ISO3601 – Fluid Power Systems – O Rings The Fluid Power Systems, power is remitted and directed via a fluid (gas or liquid) under stress inside a closed circle. To avert leakage or […]
Read MoreOutgassing
How to overcome the consequences of Outgassing Outgassing is defined as “the release of a gas that was dissolved, trapped, frozen, absorbed or adsorbed in some materials’’. Parts of rubber formulation, decomposition products of the ingredients or other gasses trapped in the polymer composition during the moulding process can turn unstable and be released under vacuum conditions. Visual Indications and […]
Read MoreCustomers Raise £82 for Cancer Research UK
As part of the ISO 9001:2015 Quality Management System (QMS) M Barnwell Services are required to gain service feedback from its customers. To comply, a selection of customers were sent a multiple choice questionnaire. A £1 charity donation was provided for every completed questionnaire. M Barnwell Services MD Mike Barnwell said: “I am delighted that so many of our customers […]
Read MoreMerry Christmas & Happy New Year 2019
Everyone at M Barnwell Services would like to wish you and your family a very Merry Christmas and a Happy New Year 2019! CHRISTMAS OPENING TIMES Monday 24th December 2018 – CLOSED Tuesday 25th December 2018 – CLOSED Wednesday 26th December 2018 – CLOSED Thursday 27th December 2018- OPEN Friday 28th December 2018 – OPEN NEW YEAR OPENING […]
Read MoreGasket 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 […]
Read MoreHow 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 […]
Read MoreShore 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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