ASME B16.21 FLAT GASKET FOR FF FLANGE CNAF WITH STEEL WIRE REINFORCED

Strength of Spiral Wound Gasket

> Spiral Wound Gasket is the ideal gasket in the semi-metallic category. A narrow strip of V-shap metal hoop is spirally wound under tension with a filler cushion between the lami nation of the metal and is spot-welded at both ends.

> This unique construction of a spring-like metal and soft filler provides gasket excel-lent characteristics.

> Resistance to high temperature and high pressures.

> Great resilience which allows the gasket to adjust automatically to change in operating conditions, such as pressure and thermal shocks, vibrations etc.

> Excellent sealability is maintained with comparatively small gasket area.

The Spiral Wound Gasket our factory manufacturing

> Good tolerance for flange surface finish irregularities.

> Can be designed to any dimensions economically in circular or moderately noncircular shape.

> Available in a variety of hoop metals and filler materials to satisfy specific operating conditions.

Style RW

General purpose gasket suitable for flat face and raised face flanges up to Class 2500

Centering ring accurately locates the gasket on the flange face, provides additional radial strength, and acts as a compression limiter

Spiral winding (sealing element) consists of pre-formed metal and soft filler material

NOTE: An inner ring is recommended for applications above Class 600, due to the high available bolt load. See Style RWI.

Style RWI

Suitable for flat face and raised face flanges up to Class 2500

Recommended for higher pressure applications, for use with PTFE fillers, and when delineated by ASME B16.20

Inner ring acts as a compression limiter and protects sealing elements from process media attack

Style R

Suitable for tongue and groove, male-female, or groove-to-flat face flanges

Spiral winding only, containing preformed metal and soft filler material

Inner and outer diameters of winding are reinforced with several plies of metal without filler to give greater stability

NOTE: Also available with inner rings Style RI.

MC and MCR Gaskets

For Manhole Cover Assemblies