DESCRIPTION:

Spiral Wound Gasket is formed of V-shaped metallic stripe and soft non-metallic filler by means of piled, spiral wound and connected its end and beginning by dot welded. Depend on its excellent compression resilience it is suitable for sealing spots where the alteration of temperature and pressure are frequent.Support rings,inside and Outside the spiral,improve the gasket's handing,fitting and Versatility.It can be used as the static sealing element of pipe, valve, pump, thermal exchange, condensing tower, plain hole and man hole of flange, etc. It has been widely applied in the fields of petrochemical, mechanical manufactory, power station, metallurgy, shipbuilding, medical and pharmaceutical nuclear power station and navigation, etc.

We can produce according to ASME, BS, JIS and EN(DIN) standards or client request.

Types	Style	Flange	For example
Basic type SWG	SW110-R	Tongue and Groove	SS316L/PTFE
SWG with inner ring	SW110-IR	Male and Female	304 304/FG
SWG with outer ring	SW110-CG	Raised face Flat face	304/ASB CS
SWG with inner & outer rings	SW110-CGI		316L 316L/FG CS
SWG for heat exchanger	SW110-H	Heat exchanger	304/FG with 1 bar of DJ
Special shape SWG	SW110-S	Special	Oval

SW110-R Basic Type Basic construction type, inner and outer diameters are reinforced with several piles of metal without filler to give greater stability and better compression characteristics. - Suitable for tongue and groove, male and female or grooved to flat face flange assemblies.
SW110-IR Inner Ring Type Solid inner metal ring acts as a compression stopper. To prevent accumulation of solids, reduce turbulent flow of process fluids and minimize erosion, damages of gasket between flange bore and the inside diameter, the annular space is filled up by solid inner metal ring. - Suitable for male and female pipe flanges.
SW110-CG Outer Ring Type Solid outer ring accurately locates the gasket on the flange face to give the additional radial strength to prevent the gasket blowout and acts as a compression limiter. In case of installing the outer ring, it is very easy to install the gasket to flange face because the end of outer ring will touch at bolts - Suitable for use with flat face and raised face flanges. For class 900 and above an internal ring is recommended.
SW110-CGI Inner & Outer Rings Type A inner ring and outer ring type gasket will give an additional compression limiting stopper for gasket inner and outer side. It will prevent the corrosions on flange face at annular space. - Suitable for use with flat face and raised face flanges and specified for high pressure / temperature service - Class 900 and above or where corrosive or toxic media are present.

MATERIAL:

Style	Structure	Hoop material	Filler material	Inner & outer ring material	Normal thickness mm
					Gasket	Inner & outer ring
SW110-R	Without rings	304(L);316(L) 321;317L 31803 Monel, Ti,Ni INC Hast.C/B Zr702 etc.	Graphite, PTFE, Asbestos Non-asb Mica, etc	CS, 304(L), 316(L), 321, 317L 31803 Ti,Ni INC Hast. Monel, Zr702	3.2 4.5 (0.175”) 6.4	2 3 (1/8”) 4
SW110-IR	With inner ring
SW110-CG	With outer ring
SW110-CGI	With inner & outer rings

MARKING EXAMPLE:

REFERENCE:

SW Gasket Color Chart

SW Gasket ASME B16.20 Size