Graface UpGrade - Gasket Production Engineering

Coating to improve seal performance on double metal jacketed

For improving sealing performance on double jacketed gaskets, graphite adhesive tape is usually applied on both faces of the gasket.

During this application, the tape needs to be bent to follow gasket circumference; this manual bending deformation becomes even more difficult time by time when the gasket sealing surface width increases and gasket diameter decreases.

VED complies with standard ASME PCC-1 ed. 2019 [P-4.5.1]

“Field application of graphite tape to conventional double-jacketed gaskets is not recommended and is not as effective as purchasing a gasket with graphite facings specified as part of the inherent gasket design”, and for that reason VED supplies a new solution, allowing at the same time a field application and a final result like a purchased gasket:

GRAFACE, the circumference shaped adhesive tape along gasket diameter, avoiding manual deformation during the application.

By using GRAFACE the deformation, to be applied on the adhesive tape, will be ten times less allowing a more regular gasket cover, without ripples and/or creases.

This particular shaped adhesive tape is supplied in various widths according to specific gasket diameters.

It is important to remember: do not use a tape width exceeding the gasket one, and to follow indications, inside the box, on how to cut the tape in making junctions.

Il kit Graface: all what you need for upgrading Metal Jacketed gaskets

A simple guide helps in choosing the most suitable packaging for the coating of the double jacketed gaskets. The package contains enough sectors to cover the industrial gasket.

In each sector, there is an extra length of 100 mm. It is suggested that the width of the tape does not exceed that of the gasket and that the joints are without overlapping and with a 45 ° cut. [read instruction inside the box]

Why always have a GRAFACE Kit available?

It can solve some needs directly on site and is structured to obtain a superior quality coating.

The Graface kit: is it possible to coat other types of gaskets?

Yes, it is possible; it replaces and improves the quality of the application of any other graphite tape.

It also lends itself to the coating of “Spiral wound” and “Solid Flat Metal” gaskets as long as there is compatibility with metallurgy and fluids. (It cannot be used to coat Kamprofile…).

FIND OUT MORE ABOUT THE TOPIC BY DOWNLOADING THE TECHNICAL SHEET

GRAFACE DATA SHEET

The advantages

It enhances the sealing characteristics of the industrial gasket by compensating even non-appreciable irregularities.
Under the same conditions, GRAFACE remains more adherent to the gasket than other types of graphite.
With the GRAFACE Kit you have everything you need to intervene on any metal-plastic gasket with a diameter between 800-2000 mm.
Using GRAFACE on Metal Jacketed gaskets helps to optimize the tightness of the flanges and therefore the safety in the systems.

What are the disadvantages of an uncoated GRAFACE industrial gasket? If the surface of the flange shows even minimal irregularities, there is a risk of not obtaining the seal.

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