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Spiral wound gasket consists of "V-shape"(or"W-shape")metal tape and nonmetal tape,which are overlapped each other and wound continuously.To fasten the metal tape,both its start point and end point are tack welded.

DONGFENG spiral wound gasket

Products  Features

• Wide range of applicable working condition,high temperature and high pressure resistance,applicable to super low temperature and vacuum condition.Chemical resistant gasket is available under various medium,through change of composition of gasket.
• Strong stress compensation,stable and reliable sealing performance even under frequent pressure fluctuation condition.
• Perfect sealing performance.
• Normal requirement of flange surface finishing which contact with gasket.

• Easy installation and low pre-tightening stress of gasket.

Assortment  in display

Code no.	Name	Picture	Description
A	SWG with basic type		Tickness:4.5mm
B	SWG with inner ring		1.Tickness for Inner ring:CS(3.2MM)  2. Tickness for inner ring:SS304/316/316LL(3.0MM)  3.Tickness:4.5MM
C	SWG with outer ring		1.Tickness for outerr ring:CS(3.2MM)  2. Tickness for outer ring:SS304/316/316LL(3.0MM)  3.Tickness:4.5MM
D	SWG with inner &outer ring		1.Tickness for outerr ring:CS(3.2MM)  2. Tickness for outer ring:SS304/316/316LL(3.0MM)  3.Tickness:4.5MM

1.A.Wound style gasket consists of four type:basic type,with inner ring,with outer ring,and with inner and outer rings. B.Heat exchanger wound style gasket:basic type and with inner and outer rings.
2. Normally matrial used:
A.Steel tape:08F,0Cr18Ni9(304),0Cr18Ni9Ti,1Cr18Ni9Ti(321),0Cr17Ni12,M02(316),00Cr17Ni14M02(316L).
B.(Cold roll)steel plate for inner and outer ring:Outer ring:mild steel,0Cr13 and 0Cr18Ni9
Inner ring:same as steel tape,special order is a available through negotiation.
C.Nonmetal tape:flexible graphite,special made asbestos,teflon and non-asbestos paper.

Technical data sheet

Products Application fields

• Heat treatment industry for furnace parts, fans, tube hangers, and baskets and trays to hold small parts.

• Chemical process industry to contain hot concentrated acids, ammonia, and sulfur dioxide. 

•  Food processing industry.

• Hot acetic and citric etc.