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Home > Sealing Gasket > ASME B16.20 Spiral Wound Gaskets

ASME B16.20 Spiral Wound Gaskets

  • BKG339
  • BANDAK

Product details

Spiral Wound Gaskets  consist of thin metal hoop and non metal filler material that are simultaneously wound.

The metal hoop is pre-formed in V or W shaped profile, which allows the gasket to act as a spring between the flanges.
Spiral Wound Gaskets are extremely popular due to the wide variety of available styles and sizes, it is the precision-engineered solution for flanged joints, manholes, and other high-temperature, high-pressure applications.
During the rolling-up of a profile metal tape a filler is being included,  Spiral Wound Gasket include PTFE or expanded graphit or non asbesots. The V-profile metal tape is produced by different metal materials or metals. The flexibility of the gasket in pressing on direction is being upgraded due to the v-shape cross-section.
 
Spiral Wound Gaskets Application:                                                  

Item

Style

Flange

For example

Basic type SWG

BKG101a

Tongue and Groove

304/PTFE

SWG with inner ring

BKG101b

Male and Female

304 304/FG

SWG with outer ring

BKG101c

Raised face

Flat face

304/ASB CS

SWG with inner

& outer rings

BKG101 Id

 

304 304/FG CS

SWG for heat exchanger

BKG101c

Heat exchanger

304/FG with 1 bar of DJ

Special shape SWG

BKG101 e

Special

Oval


Spiral Wound Gaskets Material application:

Filler material 

Temperature

Pressure

 

Graphite                              

-240°C~+550°C in oxidizing media 

300bar in hot water, oil, etc

 

-240°C~800°Cinnon-oxidizing media

200bar in vapor oil, gases, etc

Asbestos

-150°C~+450°C

150bar

PTFE

-200°C~+250°C

150bar

 

Coloring Guardlines for Spiral Wound Gaskets.

SWG COLOR



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