Spiral Wound Gasket With Inner and Outer Ring

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Spiral Wound Gasket With Inner and Outer Ring

Product Type:XINSEN-SD

Features:

          This spiral wound gasket has solid outer and inner ring .However an inner ring has been inserted to enhance gasket performance and an external guide ring accurately centers gasket on flange face. The inner ring is added to prevent the possibility of the gasket imploding into the pipe during installation, to protect the sealing element from extreme temperatures and mediums, fill the void between flanges to prevent erosion of the flange, and to reduce the possibility of failure. The inner ring is normally made of the same alloy as the winding. The DIN 2699 standard (German) specifies inner rings in all spiral wound gaskets. Inner rings are required for gasket with PTFE filler according to ASME B16.20 standards, and considered important for graphite fillers. This profile is normally used in raised and flat faced flanges. The external ring a provides additional radial strength to prevent gasket blowout and acts as a compression stop. This profile is normally used in raised and flat faced flanged. The outer ring is often made of carbon steel (painted or zinc plated to prevent corrosion) but can be made of alloys for higher temperature and more severe medium applications.


Style

Construction

Flange

Hoop material

Filler

Inner & outer Material

Size
(mm)

Thickness (mm)

Material

Code

V

W

Basic type

Tongue and Groove

304

304L

316

316L

321

Alloy825
Monel400
Inconel625
S32750

 

Asbestos
Graphite
PTFE

Non-asbestos

ASB
FG
PTFE

NACF

Carbon steel
304 (L)

 321
316(L)

Alloy825
Monel400
Inconel625
S32750

 

16-3000

3.2
4.5

4.8
5.5
7.5

With outer ring

Raised face Flat face

With inner ring

Male and Female

With inner, outer ring

Raised face Flat face

For heat exchanger

Heat exchanger