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Maritime sector

Leader Spiral Wound Gasket Type SI

Description

Designed more than 100 years ago, Spiral Wound Gaskets (SWG’s) are widely used as high integrity and sustainable gaskets. The sealing element is manufactured from preformed, v-shaped metallic windings with intermediate soft sealing fillers. As standard metallic material for winding and inner ring SS316L is used and for the soft fillers, graphite or PTFE. Due to the gaskets construction, SWG’s offer high compressibility and recovery. Leader Style SI SWG’s are provided with an inner ring. The SI gaskets are suitable for ASME B16.5 tongue and groove or male / female (Spigot to Recess) flanges up Available also for Heat Exchanger applications.

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Product Data SheetMetallic materials

Application

(Petro-) Chemical Industry, Steam, On- and Offshore exploration, pipeline systems, pressure vessels and exchangers.

Chemical Compatiblity

Spiral Wound Gaskets can be used in a wide variety of media, i.e. a pH range varying from 0-14. Application/ compatibility guide is available on request. Temperature from –450 °F up to 850 °F (steam up to 1200 °F)

Delivery Options

Standard style S gaskets are normally manufactured according to particular customer drawings, or by given sizes. Gaskets can be manufactured in a thickness of .125" / .175" / .250" / 285". Different materials are available.

Temperature

Spiral Wound Gaskets can be used in a wide variety of media, i.e. a pH range varying from 0-14. Application/ compatibility guide is available on request. Temperature from –450 °F up to 850 °F (steam up to 1200 °F)

Sealing Characteristics

  • low leak rate
Technical Data
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