Category Archives: gasketing

GYLON EPIX™ Reduces Gasket Installation Issues

GYLON EPIX™ is a newly developed family of PTFE gaskets. It is manufactured using a patented, profiled surface based on our proven Fawn, Off-White, and Blue GYLON® to create highly conformable materials for optimum sealing performance.

Watch the video below to learn more about GYLON EPIX™, and how it’s patented
hexagonal surface profile can help you reduce gasket installation issues.

GYLON EPIX™ will provide 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 that are used in worn and pitted flanges. In addition, this evolutionary material delivers the tight sealing and load retention properties of 1/16” (1.6mm) and the conformability of 1/8” (3.2mm). The hexagonal profile provides GYLON EPIX™ - 3504 EPXimproved compressibility and recovery. The profiled surface reduces the contact area during initial compression to concentrate the compressive force of the flange for improved sealability.

Designed for increased compressibility, GYLON EPIX™ improves performance in misaligned flanges. The consolidation of two thicknesses to one reduces the need to inventory multiple thicknesses. Garlock is dedicated to providing real sealing solutions that meet real world sealing needs. With an improved design, color-coded materials, and single thickness, GYLON EPIX™ makes sealing easier.

For additional information about specific GYLON EPIX™ products:

GYLON EPIX™ Style 3500 EPX

GYLON EPIX™ Style 3504 EPX

GYLON EPIX™ Style 3510 EPX

Case Study: GYLON EPIX™ 3504 EPX

GYLON EPIX™ - 3504 EPXGYLON EPIX™ is a family of gaskets that effectively seals a broader range of applications and is more forgiving during the installation process.  It allows the end user to save valuable turn-around time, reduce re-work, and lower costs, helping them to finish ahead of schedule and under budget.

GYLON EPIX™ features a hexagonal surface profile that provides the torque retention and blowout resistance of a thin gasket and the conformability of a thicker gasket.  GYLON EPIX™ Style 3504 EPX is a high performance, aluminosilicate microsphere filled PTFE sheet material designed for use in moderate concentrations of acids, and caustics, as well as hydrocarbons, refrigerants, and more.


INDUSTRY

Material Processor

CUSTOMER

Cement Manufacturer

BACKGROUND

The customer experienced gasket leaks in their piping system.  This caused lost time due to repairs and clean-up efforts.

CHALLENGES FACED

Several issues that plagued the system – abrasive media stream caused gasket and flange erosion, and low strength bolts prevented the customer from using higher performance gasketing materials that require higher assembly stresses to properly seal.

GYLON EPIX™ 3504 EPX

OPERATING CONDITIONS

  • Media: Dry Cement
  • Temperature: 185°F (85°C)
  • Pressure: 102 psig (7 bar)
  • Class 150 Raised Face Flanges
  • Grade 2 Bolts (low strengths, 57ksi yield strength)

SOLUTION AND BENEFITS

The customer’s desire to have a sealing solution that could work with flanges in their current condition, as well as the lower strength bolt led to the evaluation of the GYLON EPIX™ 3504 EPX in a 6″ 150# raised face flange.  The 3504 EPX gasket effectively seals the damaged flange faces with the lower strength SAE Grade 2 bolts.


Gallagher is your source for all of your Garlock sealing needs.  If you have further questions regarding the GYLON EPIX™ 3504 EPX, or any other Garlock products, please do not hesitate to contact us. Our engineering department is always ready to help you design a sealing solution to your toughest application!

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.

Continue reading Introducing Garlock GYLON EPIX™

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.

Continue reading The Importance of Flange Gasket Storage

Isolation Gasket Solutions from Thermoseal

KLINGERSIL® C-7400 Isolation Gaskets

Application Overview:

Some applications in plants call out for isolation kits to maintain the integrity and reliability of a pipeline and piping system. Isolation kits are designed to work in conjunction with flanges, gaskets, and/or bolt sleeves and washers by eliminating metal-to-metal contact and halting static electric currents. At times they are relied upon for critical applications in severe temperatures and conditions.

KLINGERSIL C-7400 - Isolation Gaskets replace Isolation Kits

The Problem: 

Industry’s first choice are phenolic gaskets. They are often supplied in kits, but they are hard and typically take a lot of load to seal. And lack of load is the number one reason for gasket failure.

Continue reading Isolation Gasket Solutions from Thermoseal

Ring-Type vs. Full-Face Gaskets

When sealing raised or flat face flanges, there are two choices of gasket shape: ring-type or full-face.  Each has its own advantages, so you should know which will best suit your application before ordering and installing. First, let’s discuss the types of flanges in which gaskets are installed.

Flange Faces

Different types of flange faces are used as the contact surface to seat the sealing gasket materials.  ASME B16.5 and B16.47 define various types of flange facings, including the raised face, the large male and female facings which have identical dimensions to provide a relatively large contact area.

Raised Face (RF) Flanges

Raised Face FlangesThe Raised Face flange is the most common type used in process plant applications, and is easily to identify. It is referred to as a raised face because the gasket surfaces are raised above the bolting circle face. This face type allows the use of a wide combination of gasket designs, including flat ring sheet types and metallic composites such as spiral wound and double jacketed types.

The purpose of a RF flange is to concentrate more pressure on a smaller gasket area and thereby increase the pressure containment capability of the joint. Diameter and height are in ASME B16.5 defined, by pressure class and diameter. Pressure rating of the flange determines the height of the raised face.

Continue reading Ring-Type vs. Full-Face Gaskets

Gasket Installation Procedures: Best Practices

Brought to you by Thermoseal®

Gasket InstallationThis blog provides guidance to maintenance operators, engineers and fitters to ensure successful gasket installation and assembly of bolted flange connections. However always check plant-approved installation procedures first.

The successful operation of a gasket depends upon a multiplicity of factors including the style and quality of the gasket material, but also the medium being sealed, the flange design, the amount of pressure applied to the gasket by the bolts and how the gasket is assembled onto the flanges and tightened. Very basic causes often lead to leakage in bolted joints, and in most cases, it is not just the gasket but also the human element. Users should evaluate all conditions to validate the products are suitable for the intended process.

Tools Needed

Specific tools are required for cleaning the flange and tensioning the bolts. Always use standard safety equipment and follow good safety practices. The following tools are required for removal of the old gasket and installation of the new gasket:

  • Calibrated torque wrench or hydraulic tensioner
  • Brass wire brush
  • Personal safety equipment
  • Lubricants for the bolts (if specified)
  • Other plant-specified equipment

Continue reading Gasket Installation Procedures: Best Practices

VIDEO: Sealing Flanges with Surface Deviations

Surface Deviations - Pitted FlangeOver time, and for any number of reasons, flanges are prone to surface deviations.  Damaged areas will tend to create a leak path that the gasket must try to seal.

Flange damage most commonly occurs when removing previously used gasket material from the sealing surface – tools such as chisels, or screw drivers, should be avoided. A brass wire brush is suggested.

The video below proves how well GORE® Gasket Tape Series 500 works on flanges with surface deviations versus a standard filled PTFE gasket.

Continue reading VIDEO: Sealing Flanges with Surface Deviations

Improper Gasketed Joints Can Be Deadly

Gasket FabricationGallagher Fluid Seals is the trusted supplier of MRO sealing materials – including gasketing, packing, expansion joints, etc. – to all kinds of plants and manufacturers throughout the northeast and mid-Atlantic.  At Gallagher, we take the time to specify the right gasket for every application, and we do our best to keep our customers well-informed about industry best practices and sealing safety.

The following is an article recently published in Pumps & Systems Magazine, which discusses why you should NEVER reuse a gasket.


Sealing Sense

by Jim Drago & Ron Frisard

Safety is a concern at any industrial site. An Occupational Safety and Health Administration compliance specialist has stated that safety should be more than a priority: “Priorities in an organization can and usually do change. Safety and health need to be a core value of the organization.”1

Continue reading Improper Gasketed Joints Can Be Deadly

Why Use Food Grade Silicone?

There are a plethora of choices when it comes to gasketing material.  But if you are in the food processing, it is crucial that every item that makes contact with the gasket is left unaffected.  And although silicone is inherently non-toxic, only a specially formulated food grade silicone is fit for use with consumables.

Food Grade Silicone - FDA ApprovedSilicone is an ideal elastomer to use if you require FDA-approved rubber.  Since there is an emphasis on rubbers being suitable for repeated use in the food processing industry, silicone is ideal being that the material is not susceptible to harmful microbial agents or other contaminants.  Food grade gaskets and seals should be able to function for long periods of time without falling prey to harmful contamination, or degradation.

Continue reading Why Use Food Grade Silicone?