Seal Clinic Articles
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O-Ring Boxes
View more >SPECSEAL offers O-ring boxes in a choice of materials and hardness levels to suit different applications: Nitrile 70 Shore A, Nitrile 90 Shore A, and Fluorocarbon 75 Shore A. Sets are available in Am…
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Why Choose Seal-Master Machined Seals?
View more >SPECSEAL's original article describes five computer-controlled seal machining systems that manufacture seals quickly and accurately to customer-specified dimensions. It also describes a selection of…
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Seals for Food and Beverage Filling Machines
View more >5 May 2014SPECSEAL imports food-grade silicone for use with seals suitable for food and beverage filling machines without harming consumers. This silicone is used in Seal-Master profiles DK39, DS19 a…
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How Can You Determine the Correct Seal Size?
View more >Measuring a seal alone does not always identify its correct size, because manufacturers use different seal designs. Even seals intended for the same housing groove may have different measured dimensi…
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Hytrel Back-up Rings
View more >SPECSEAL introduced BRH-xxx back-up rings, where xxx denotes the AS-series O-ring number. These rings are made from Hytrel with a hardness of 55 Shore D, described in the original article as comparab…
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Which Wear Ring Materials Should Be Used in Pneumatic Cylinders?
View more >3 January 2014Pneumatic systems generally do not have a complete lubrication system. It is therefore essential to select materials with good wear resistance and self-lubricating properties. All seals…
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Understanding Glass-Filled PTFE
View more >19 November 2013The glass used in PTFE+GLASS materials for seals and components comes in various grades, depending on the manufacturer and country of origin. If impure glass is used, it may contamina…
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Should You Replace Only the Leaking Seal or the Entire Cylinder Seal Set?
View more >5 November 2013Replacing all the seals in a cylinder at the same time offers a significant benefit to the equipment owner. Each cylinder disassembly and reassembly involves labour costs and lost prod…
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How Long Should a Good Seal Last?
View more >7 October 2013Seal service life depends on many operating conditions, including the number of working hours per day. Running machinery 24 hours a day can shorten seal life. The number of operating cy…
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Can an SP-55-211 Glide Ring Withstand 800 Bar?
View more >12 June 2013Glide rings are generally used at pressures of up to 400 bar; details are available in SPECSEAL’s Master Catalogue for Hydraulic Seals. For applications at 400–800 bar, send the operating…
