SPIRAL WOUND GASKETS FLEXWOUND ^®

DESCRIPTION:

Gasket made from spiral of metal material (strip) and non metal material (filler). SWG can have outer and inner rings.

Spiral wound gaskets are capable of meeting the most exacting condition of pressure and temperature.

TYPE:

GRI

The standard version is the Style GRI spiral wound gasket with inner and outer ring. This gasket has the best sealing characteristics combined with the highest safety for flanged joints with flat face and raised face flanges.

 

GR

By means of suitable dimensioning of the centering ring, the sealing element is accurately centered on the flange face by the bolts. A general purpose gasket for use with flat face and raised face flanges.

 

RR

Style RR spiral wound gasket with no accessory ring is suitable for tongue and groove applications and for operation with a compression stop. Given a gasket thickness of 4.5 mm, a groove depth of 3.3 (± 0.1) mm is recommended to provide the compression stop.

 

RI

Style RI spiral wound gasket with inner ring is designed specifically for male and female flanges, the inner ring providing radial confinement to prevent blow-out of the spiral element.

 

Available several materials for the spiral and for the rings.

Standard materials:

METAL WINDING STRIP	FILLER MATERIAL	GUIDE RING MATERIAL
SS316L	Graphite	Carbon steel
SS304

Other materials:

METAL WINDING STRIP	FILLER MATERIAL	GUIDE RING MATERIAL
SS304L	Micatherm	SS316L
SS309	Sichem	SS304
SS310	PTFE	SS304L
SS316TI	BIOCERAMIC	SS309
SS321		SS310
SS347		SS316TI
SS430		SS321
SS410		SS347
ALLOY 20		SS430
MONEL		SS410
TITANIUM		ALLOY 20
NICKEL		MONEL
INCONEL 600		TITANIUM
INCONEL 625		NICKEL
INCONEL X-750		INCONEL 600
HASTELLOY B2		INCONEL 625
HASTELLOY C276		INCONEL X-750
INCOLOY 800		HASTELLOY B2
INCOLOY 825		HASTELLOY C276
DUPLEX		INCOLOY 800
SUPER DUPLEX		INCOLOY 825
ZIRCONIUM		DUPLEX
TANTALUM		SUPER DUPLEX
COPPER		ZIRCONIUM
PHOS-BRONZE		TANTALUM
CARBON STEEL		COPPER
		PHOS-BRONZE
		CARBON STEEL

 

APPROVAL:

VDI 2440-EMISSION CONTROL

COLOR:

For ease identification, we utilize a color coding system around the outside of the centering ring, thus permitting full identification of both the widing and filler materials.

TECHNICAL INFORMATIONS:

High temperatures and high pressures depending from selected materials.

 

DIMENSIONAL DATA STYLE GR AND GRI TO ASME B16.20 TO SUIT ASME  B16.5 FLANGES

 

 

 

DIMENSIONAL DATA STYLE GR AND GRI T O ASME B16.20 TO SUIT ASME  B16.47  SERIES A FLANGES

 

 

DIMENSIONAL DATA STYLE GR AND GRI TO ASME B16.20 T O SUIT ASME B16.47 SERIES B FLANGES

 

 

DIMENSIONAL DATA STYLE GR TO JIS B 2404-2006 TO SUIT JIS B 2220-2004/JIS B 2239-1996 FLANGES

 

 

 

DIMENSIONAL DATA STYLE GRI TO JIS B 2404-2006 TO SUIT JIS B 2220-2004/JIS B 2239-1996 FLANGES

 

 

 

Unit (mm)

The dimensions in the double border cannot be used on small flat seats.
The dimensions in the bold border apply to large flat seats and small flat seats. (Note, however, that these dimensions apply only to butt-welded flanges and type C slip-on welded flanges stipulated in JIS B 2220.)
For a 30K type A slip-on welded flange and a type B slip-on welded flange, use the dimensions on Page 80.
It is recommended that gaskets with inner and outer rings be used on flanges that are intended for a nominal pressure of 63K.
It is recommended that fitted with inner and outer rings.
It is not recommended that gaskets used on flanges intended for nominal pressures 2K and 5K.
It is recommended that high-strength alloy steel bolts of SNB-7 or higher to be used

 

 

For type A slip-on welded flanges (socket- welded type)  

 

For  type  B  slip-on  welded  flanges  (socket-welded  type)