Metal spiral wound gaskets

5.Max.machinable  size:~2800

4.Min.pre-tightening   specific   pressure:y=68MPa

3.Gasket  coefficient:m=2.5~4

2.Working  pressure:<=25MPa

1.Working  temperarure:-196~700(Not  higher than 600   in oxidic  medium)

Scope  of  Application

C.Normetal  tape:flexible  graphite,special  made  asbestos,teflon and  non-asbestos  paper.

Inner  ring:same  as  steel ,special  order  is  available  through  negotiation.

Outer  ring "mild  steel ,ocr13  and  OCr18Ni9

B.(Cold  roll)steel   plate  for  inner  and  outer  ring:

ocr13,ocr18Ni9Ti.1Cr18Ni9Ti(321).ocr17Ni12,M02(316),and  0Cr17Ni14M02(316L)

A.Steel tape :08F

2.Normally  material  used:

 B.heat exchanger spiral wound  gasket:basic  type  and  with  inner  and  outer  rings

1.A.  spiral  wound  gasket  consists  of  four  types:basic  type,with   inner  ring,with  outer  ring,and  with inner  and  outer  rings.

kind  of  gasket

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

4.Normal  requirment  of  flange surface finishing  which  contact with gasket.

3.Perfect sealing  performance.

2.Strong strees  compensation.   stable and reliable  sealing  performance  even  under  frequent  pressure  fluctuation  condition .

1.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.

performance  and  features

  The  spiral 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  end  point  are tack  welded.

structure

spiral    wound  gaskets(o-ring,gasket)

spiral wound gaskets(o-ring,gasket)
1.Max.machinable size:~2800
2.Working temperarure:-196~700
3.Gasket coefficient:m=2~4