Metal Spiral Wound Gasket

Date: 2017-05-04 08:49:35

Spiral wound gaskets have become extremely popular due to the wide variety of available styles and sizes. Spiral wound gaskets can be fabricated of any metal which is available in thin strip and which can be welded; therefore, they can be used against virtually any corrosive medium dependent upon the choice of the metal and filler.They can be used over the complete temperature range from cryogenic to approximately 2000ºF (1093ºC). This type of gasket can be used in all pressures from vacuum to the standard 2500 pressure class flange ratings. Spiral wound gaskets can also be manufactured with variable densities, i.e. relatively low density gaskets for vacuum service up to extremely high density gaskets having a seating stress of approximately 30,000 psi (207 MPa).The softer gaskets would require a seating stress in the range of 5,000 psi (34 MPa).

Style No: RS1-R gaskets are winding only.Without inner or outer ring is utilized. Used  in different applications, they may be furnished in many different sizes and thicknesses.

Style No:RS1-R gaskets are made in standard sizes to fit:

A. Large tongue and groove joints, 1/2 to 24 NPS, standard pressures;
B. Small tongue and groove joints, 1/2 to 24 NPS, standard pressures;

C. Large male and female joints 1/4 to 24 NPS, standard pressures.

Style No: RS1-CG gaskets consist of a spiral wound sealing component with a solid metal outer guide ring. The outer guide ring serves to center the gasket properly in the flange joint,acts as an anti-blowout device, provides radial support for the spiral wound component, and acts as a compression gauge to prevent the spiral wound component from being over crushed.

Normally the outer guide rings are furnished in mild steel, but can be supplied in other metals when required by operating conditions.

Color coding guardlines for Spiral Wound Gasket

Dimensions for Spiral Wound Gasket(RS1-CGI)
per ASME B16.20 to Suit ASME B16.5 Flanges

Spiral Wound Gasket tolerance per ASME B16.20 specifications

Dimensions for Spiral Wound Gasket Style RS1-CG/RS1-CGi to Suit Flange Facings per EN 1514-2

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