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metallic spirotallic gasket 1)structure:
metallic spirotallic gasket (Normal) is superposition, spiral involution of V or W sharp stainless steel belt by weld the two ends. 2)capability and character
1.widely application use condition.bear high temperature high pressure and apply super low temperature or vacuum use condition.Through change gasket material combination,to solve all kinds of medium has chemical rot gasket problem.
2.strong stress compensate capability.At high temperature ,pressure frequent fluctuate work place,seal capability is stabilization,reliably.
3.Nice seal capability.
4.Flange seal face, contact with gasket 's superficial precision is not high.
5.Convenient to install,gasket preload pressure is low.
1. A.spirotallic gasket have classed four form:basic,inside ring,outside ring,in and out side ring.
B.Hot exchange,use spirotallic gasket commonly classed:basic,in and out ring.
2.Usually used material:
A.steel band:08F、0Cr18Ni9(304)、0Cr18Ni9Ti、1Cr18Ni9Ti(321)、0Cr17Ni12、M02Ti(316)、00Cr17Ni14M02Ti(316L)
B.Use at in and out ring(cool roll) steel plate:out ring:low carbon steel 、0Cr13、oCr18Ni9 in side ring:usually same as steel band or negotiation to make sure.
C.nonmetal band:soft graphite、special made asbestos、PTFE、non asbestos paper.
1、temperature:-196℃-700℃(oxidation medium not before 600℃)
2.pressure:≤25MPa
3.gasket modulus:m=2.5-4
4.min preload pressure compare:y=68MPa
5.max machining size:-2800mm
basic seal
Gasket thickness :4.5mm
Inside ring outside ring in and out side ring Inside ring:low carbon steel3.2mm outside ring:low carbon steel3.2mm outside ring:low carbon steel3.2mm
Stainless steel:3.0mm Stainless steel:3.0mm Stainless steel:3.0mm
Gasket thickness:4.5mm Gasket thickness:4.5mm Gasket thickness:4.5mm
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