Spiral Wound Gaskets

A robust sealing tool to minimise downtime

Perfect across many industrial applications.

Spiral Wound Gaskets are a robust sealing product widely used across many industrial applications. Because of their robust nature, they can minimise downtime as they will need replacing less often. This makes them the perfect product for use across many industrial applications.

Spiral Wound Gaskets consist of a ‘V’ shaped metal strip spirally wound in combination with a soft filler material – normally Graphite, PTFE or Mica depending on the application and customer specification.

The gasket is easy to remove after service and does not cause any damage to the flange faces.

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Technical details

Spiral Wound Gaskets are suitable for use across a wide gasket stress range and are able to seal fluid pressures up to 400 bar and from cryogenic temperatures up to 1000oC.
Available to suit ASME, DIN or JIS standard flanges or to special dimensions in materials to suit mating flange.
Available in bespoke sizes to suit vessel or exchanger applications.
By combining different winding materials and metals, Spiral Wound Gaskets can be tailored to suit a wide variety of operating conditions.
The outer guide ring simplifies assembly and prevents blowout of the gasket.

Download Spiral Would Gasket Data Sheet

SGIR

The preferred, most common type which offers the best performance.

Gaskets are supplied with an outer guide ring to centralise the gasket and inner ring which acts as a compression stop and prevents inward buckling – used for RF flanges.

SG (No Inner Ring)

Supplied with outer guide ring only – no inner ring. Used on RF flanges but not recommended over SGIR type.

RIR

Mainly used for male and female flanges and recess flanges. The inner ring is necessary as a compression stop.

R

Mainly used for valve bonnets, male and female flanges, recess flanges, and load-bearing flange configurations such as tongue and groove flanges.

Spiral Wound Gasket Materials

Winding Material	Max Temperature	ASME B16.20 Colour Coding
Carbon Steel	500 ºC	Silver
316L Stainless	800 ºC	Green
304 Stainless	650 ºC	Yellow
Duplex	800 ºC	N/A
347 Stainless	870 ºC	Blue
321 Stainless	870 ºC	Turquoise
Monel 400	800 ºC	Orange
Nickel 200	600 ºC	Red
Titanium	540 ºC	Purple
Hastelloy B-2	1000 ºC	Brown
Hastelloy C-276	1000 ºC	Beige
Inconel 600	1000 ºC	Gold
Inconel 625	1000 ºC	Gold
Inconel X-750	1000 ºC	Light Grey
Incoloy 825	1000 ºC	White
Zirconium 702	500 ºC	N/A

Filler Material	Max Temperature	ASME B16.20 Colour Coding
Graphite	550 ºC	Grey Stripe
PTFE	250 ºC	White Stripe
Mica	1000 ºC	Light Green

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Give our team a call: +44 (0)1484 723 800
Or email us: sales@amgsealing.com

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