Description:WFY SW3100 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. 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.

Products	Style	Flange	For example
Basic type SWG	3100	Tongue and Groove	304/PTFE
SWG with inner ring	3100 IR	Male and Female	304 304/FG
SWG with outer ring	3100 CR	Raised face Flat face	304/ASB CS
SWG with inner & outer rings	3100 IC		304 304/FG CS
SWG for heat exchanger	3100 H	Heat exchanger	304/FG with 1 bar of DJ
Special shape SWG	3100 S	Special	Oval

Style	Structure	Hoop material	Filler material	Inner & outer ring material	Normal thickness mm
					Gasket	Inner & outer ring
3100	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
3100 IR	With inner ring
3100 CR	With outer ring
3100 IC	With inner & outer rings