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Spiral Wound Gasket

Spiral Wound Gasket is accumulated, hovered and wound, and spot welded beginning and end terminal by V-shaped or W-shaped stainless steel and non metal filler, which has good compression elasticity, and is suitable for the sealing parts with temperature and pressure altering violently.

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Spiral Wound Gasket

Item No.:WBG-1

Description: Spiral Wound Gasket is accumulated, hovered and wound, and spot welded beginning and end terminal by V-shaped or W-shaped stainless steel and non metal filler, which has good compression elasticity, and is suitable for the sealing parts with temperature and pressure altering violently. It is a static sealing parts used for such flange connecting joints as pipeline, valve, pump, heat exchanger, tower, manhole, and hand hole, etc. It is widely applied in departments as petrochemical, mechanical, electric power, metallurgy, boat building, medical, atomic energy, and aerospace, etc.
Product standard:
We can produce according to standards as ANSI B 16.20,MSS SP-44,API 605,DIN,JIS,JPI,BS 1560,JG/T,GB/T,HG,SH, etc. Or the demands can be designated in detail by clients. E.g. the gasket used for heat exchanger and with ribs, please provide the detailed drawings.

Gasket type:

Product name

Code

Suitable for

Expression example

Basic type metal spiral wound gasket

WBG-1-001

Tenon slot surface

304/PTFE

Metal spiral wound gasket with inner ring

WBG-1-002

Male-and-female face

304 304/FG

Metal spiral wound gasket with outer ring

WBG-1-003

Convex surface

304/ASB CS

Metal spiral wound gasket with inner and outer ring

WBG-1-004

304 304/FG CS

Metal spiral wound gasket with heat exchanger

WBG-1-005

Heat exchanger

304/FG with one rib

Special-shaped metal spiral wound gasket

WBG-1-006

Special-shaped

Elliptic

If the gasket is used for heat exchanger, generally we recommend the one with φ3.2mm stainless steel inner ring.
The narrow-band form is divided into sticking type and covering type

Type

Cross section

Material

Basic Type

 

Inner, outer ring

Carbon steel

Stainless steel

Filler material

Flexible graphite

Asbestos

PTFE

Metal belt

Stainless steel belt

With inner ring

 

With outer ring

 

With inner outer ring

 

 

 

Selectable material:

Steel belt and the inner and outer ring profile

Filler

General thickness mm

Name

Code

Name

Code

Appropriate Temperature

V-shape Gasket / Ring

W-shape Gasket / Ring

Carbon steel

CS

Asbestos

ASB

500

3.2/2.0

4.5/3.0

4.8/3.0
5.5/4.0
7.5/5.0

Stainless steel

304(L),316(L)

Graphite

FG

650

 

 

MONEL

Mon

PTFE

PTFE

250

Ni, Ti

Ni,Ti

Mica

MICA

950

Inconel

INC

Ceramic

CER

1000

Hastelloy, Zr

HAST, ZIRC

Non-asbestos

NAF

300

Generally the material of the inner ring is steel belt, to satisfy the medium and the working condition demands,
The outer ring material is the same as the pipe and the related equipment shell, the carbon steel outer ring is relatively economic.
The detailed order should indicate the detailed material, the used standard, the inside exhaust pipe nominal diameter DN, the pressure grade PN, or indicate the detailed size:
D1: inner diameter of the inner ring; D2: outer diameter of the inner ring;
D3: inner diameter of the outer ring; D4: outer diameter of the outer ring
Writing methods: D1*D2*D3*D4
The default thickness of the gasket is 4.5mm, and the ring 3mm

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