Monthly Archives: February 2018

  1. Parker's Rapid Prototype Program

    Article re-posted with permission from Parker Hannifin Sealing & Shielding Team.
    Original content can be found on Parker’s Blog.


    Rapid Prototype ProgramThe O-Ring & Engineered Seals Division is now offering a rapid prototype program for solid and hollow spliced O-rings that will reduce lead times on small orders to improve sample and trial testing on enclosure projects. The program provides spliced rings available in a variety of cross sections and can be purchased in either solid or hollow profiles.

    Spliced ring sizes

    In the event that enclosure tolerances are large or the available compressive force is low, Parker engineers can design a custom hollow seal to help absorb large tolerances while providing very low compressive force compared to solid cord. Spliced rings with large inside diameters up to 95” are available in silicone and nitrile materials. Rings with inside diameters up to 57” are available in fluorocarbon. Cross sections of .070”, .103”, .139”, .210” .250” are regularly stocked and available to splice to the ring ID needed. The chart below outlines the current compounds, cross sections, and diameters available under the program.

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  2. Vesconite Pump Application Case Studies

    Vesconite - Hilube for Pump ApplicationsThermal Power Station Condensate Pump

    Texas, USA - A thermal power station required a high-wearing, low maintenance bearing alternative for a condensate pump assembly. The line shaft and pump bowl bearings used in this vertical spindle pump operate in pure water conditions at a temperature ranging between 30˚C and 60˚C (86°F to 140°F). Removal and maintenance cost on the pump are high. Vesconite Hilube bearings were manufactured and fitted. Resultant performance has been impressive – the replacement bearings have run without fault for four years, on a pump assembly that has a seven yearly maintenance rebuild schedule.

    Water Utility Uses Hilube on Vertical Spindle Pumps

    Vesconite - Hilube for Spindle Pumps

    Texas, USA - A water utility in Texas had over the years experimented with different  grades of nylon bearings in its vertical spindle pumps, but with little success. The pumps operated in the abrasive conditions found in pit-wells. The combination of debris and sand would eventually lead to excessive wear of the original bushings and eventual seizure. The original parts were subsequently replaced with Vesconite Hilube, which requires no lubrication, does not swell and can operate in dirty conditions as characterized by the above. The re-fitted pumps have since been running without incident for over a year now.


    Why Use Vesconite in Pumps?

    Vesconite has been used for decades in a wide range of specialized pump bushing applications. The material thrives in water and exhibits excellent dimensional stability, with zero delamination. The result is low downtime and associated hassle factor. Its friction coefficient range of 0.1 – 0.2 allows for dry starting – an issue commonly associated with high wear rates in traditional bushing materials. Corrosion of the bushing is entirely eliminated with Vesconite, Vesconite Hilube is recommended for most pump applications.

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  3. Introducing Garlock GYLON EPIX™

    In a world where we are bombarded with the belief that “more is better”, sealing science contradicts that theory with facts that show “thinner is better” when it comes to gaskets, as they provide improved load retention, pressure resistance and sealability. Yet thicker gaskets have their place for uneven, worn or damaged sealing surfaces. So how does a person make the right choice? What if there was a product that could do both?

    Now there is...

    GYLON EPIX™ is a family of gaskets that effectively seals a broader range of applications and is more forgiving during the installation process. GYLON EPIX™ allows the end user to save valuable turnaround time, reduce re-work, and lower costs, helping them to finish ahead of schedule and under budget.

    Garlock GYLON EPIX™The innovative GYLON EPIX™, provides superior functional performance by combining the traditional attributes of GYLON® with an innovative surface design. It offers a broader range of applications than traditional PTFE gaskets used in worn and pitted flanges. In addition, GYLON EPIX™ delivers the sealing and load retention properties of 1/16” and the conformability of 1/8”. The hexagonal profile provides improved compressibility and recovery. The profiled surface reduces the contact area during initial compression to concentrate the compressive force of the flange for improved sealability.

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  4. NEW! Elastomer Failure Modes - Part 2

    Failure ModesGallagher recently published its Failure Modes for Elastomers in the Semiconductor Industry White Paper, now available for download on our site.  This white paper discusses common issues that occur with elastomer seals in the semiconductor industry. The excerpt below is the second section of our new white paper, discussing Loss of Sealing Force, and Extrusion.  To download the white paper in its entirety, visit our Resources Page, or click on the image to the right.


    Failure Modes of Elastomers in the Semiconductor Industry

    Failure ModesHigh performance elastomers are found in many applications in the semiconductor industry (see paper titled Perfluoroelastomers in the Semiconductor Industry). Though perfluoroelastomer (FFKM) seals are formulated to meet the highest performance requirements of integrated circuit (chip) manufacturers, even these elastomers can’t solve every sealing application nor will they last forever in service. Additionally, end users need to understand subtle performance differences between perfluoroelastomers in the same product line. For example, one product may be better at minimizing particle generation while another may be better for high temperature services.

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  5. Protect Paper Machine Bearings from Failure

    BPD-FM - Paper Machine Bearing ProtectionThe Orion Engineered Seals patented Bearing Protection Device (BPD) represents state of the art bearing protection technology and is the premier non-contacting bearing protection device offered. The BPD was designed with an understanding of the nature of the bearing housing environment under all operating conditions and utilizes the laws of physics to create what has proven to be the best performing and most cost effective way to protect the bearings of your rotating equipment.


    BPD-FM - Paper Machine Bearing ProtectionProblem: Paper machines operate in hot, humid environments resulting in reduced bearing life, costly downtime and lost production.Paper machine bearings most often fail due to contamination ingress into the bearing housing.

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  6. Secure, Hygienic Connections

    Clamp Seals

    Clamp seals guarantee fast and extremely secure tube connections in machines that are operated continuously. They are especially easy to install and re-separate. At drinktec 2017, Freudenberg Sealing Technologies presented its newly developed clamp seals, which not only reliably seal tube connections in production facilities – they also eliminate the costly conversion of connections to a “hygiene flange,” in accordance with DIN 11864. Unwanted over-compression into the interior space is prevented, guaranteeing secure, hygienic tube connections.

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  7. NEW! Elastomer Failure Modes White Paper

    Failure ModesGallagher recently published its Failure Modes of Elastomers in the Semiconductor Industry White Paper, now available for download on our site.  This white paper discusses common issues that occur with elastomer seals in the semiconductor industry. The excerpt below is the first section of our new white paper, discussing groove design and seal leakage.  To download the entire white paper, visit our Resources Page, or click on the image to the right.


    Failure Modes for Elastomers in the Semiconductor Industry

    Failure ModesHigh performance elastomers are found in many applications in the semiconductor industry (see paper titled Perfluoroelastomers in the Semiconductor Industry). Though perfluoroelastomer (FFKM) seals are formulated to meet the highest performance requirements of integrated circuit (chip) manufacturers, even these elastomers can’t solve every sealing application nor will they last forever in service. Additionally, end users need to understand subtle performance differences between perfluoroelastomers in the same product line. For example, one product may be better at minimizing particle generation while another may be better for high temperature services.

    Read more »
  8. The Importance of Flange Gasket Storage

    Flange gasket storage is often an after-thought for many of our customers.  While incorrect gasket installation procedures is the #1 culprit when it comes to gasket failure, gasket storage can play a large role in the quality of the gasket being installed.

    The following article first appeared in Pumps & Systems Magazine on December 14, 2017.


    Get the Most Out of Your Flange Gaskets

    Performance Depends on Many Factors

    by Laverne Fernandes

    Flange gaskets are highly engineered products, and their performance depends on many factors. Certainly design, manufacture, installation, and process conditions are all critical, but so is storage before use. Gasket materials often remain in storage for a long time before they are placed into service. Unfortunately, storage practices for gasket materials are generally not optimal or controlled well enough. This article provides guidance for the storage of different gasket materials to preserve their integrity.

    Non-metallic Gasket Material - Gasket StorageGasket materials are divided into three main categories: non-metallic, semi-metallic and metallic. Non-metallic gaskets, or soft gaskets, are fabricated from materials such as rubber, fiber, polytetrafluoroethylene (PTFE) and graphite. The material properties make them ideal for flat-faced applications with low pressures. Metallic gaskets are fabricated from one or a combination of metals. Semi-metallic gaskets are composed of metal and non-metallic materials. The metal is intended to offer strength and resilience while the non-metallic components provide conformability and sealabililty. These types of gasket are used in higher-pressure applications. The most common semi-metallic gaskets are spiral wound gaskets.

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