Detailed Product Description

Struture

The  twisting 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.

Performance   and   Features

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.

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

3.Perfect  sealing  performance .

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

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

Kind  of  gasket

1.A.Twisting  gasket consist of  fourt  types:basic  type,with  inner  ring,with outer ring ,and  with  inner and outer  outer  rings.

B.Heat  exchanger  twisting  gasket:basic  type and with inner  and outer rings.

2.Normally  material  used:

A.steel  tape :08F

ocr13,ocr18Ni9(304),ocr18Ni9Ti(321).ocr17Ni12.M02(316).and  oocr17Ni14M02(316L)

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

Outer ring :mild steel,ocr13andocr18Ni9

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

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

Scope  of  Application

1.Working  temperature:-196 ^oC ~700^oC (not  higher than 600^oC  in  oxidic  medium)

2.Working pressure:=<25Mpa.

3.Gasket  coeffcient:m=2.5~4

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

5.Max.machinable size:~2800mm.