Spiral wound gaskets are special semi-metallic gaskets of great resilience, therefore they are very suitable for applications featuring heavy operating conditions, Spiral wound gaskets are manufactured by spirally winding a V-shaped metal strip and a strip of non-metallic filler material. Spiral wound gaskets are special semi-metallic gaskets of great resilience, therefore they are very suitable for applications featuring heavy operating conditions, Spiral wound gaskets are manufactured by spirally winding a V-shaped metal strip and a strip of non-metallic filler material.

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CHINA

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Gasket Series

Standard Spiral Wound Gasket

Spiral Wound Gasket for Heat Shield

Manhole/Handhole Spiral Wound Gasket

Spiral Wound Gasket for Heat Exchanger

Low Load Spiral Wound Gaskets

Range of Materials Spiral Wound Gaskets

Spiral Wound Exhaust Pipe Gasket

Kammprofile Grooved Gasket

Double Jacketed Gasket

Tanged(Reinforced) Graphite Gasket

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Cylinder Gasket & Engine Gasket

Ring Joint Gasket

Non-asbestos Gasket

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Material For Spiral Wound Gasket

Expande PTFE Valve Stem Packing
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Ceramic Fiber Thermal Insulation Material

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      Keywords:Gaskets,Spiral Wound Gasket,Professional Manufacturers & Suppliers of gaskets and gland packing

¡¡ Semi-metal Gasket Series ¡¡
¡¡ Spiral Wound Gasket              Rreinforced Graphite Gasket              Metal Jacketed Gasket   
¡¡ Heat Exchanger Gasket             Spiral Wound Exhaust Pipe Gasket     Cylinder Gasket & Engine Gasket
¡¡ Double Jacketed Gasket
¡¡ ¡¡

Spiral Wound Gasket

Item No.:ZD-G1200

Description:Spiral wound gaskets are special semi-metallic gaskets of great resilience, therefore they are very suitable for applications featuring heavy operating conditions, Spiral wound gaskets are manufactured by spirally winding a V-shaped metal strip and a strip of non-metallic filler material. The metal strip holds the filler, providing the gasket with mechanical resistance and resilience. Spiral wound gaskets can be reinforced by an outer centering ring and/or inner retaining ring. The outer centering ring controls the compression and holds the gasket centrally within the bolt circle. The inner retaining ring increases the axial rigidity and resilience of the gasket. Spiral wound gaskets should always be in contact with the flange and should not protrude into the pipe or project from the flange.

Application:Spiral wound gaskets can be used for sealing flange joints, manhole and handhold covers, tube covers, boilers, heat exchangers, pressure vessels, pumps, compressors and valves; in industries such as petrochemical, pharmaceutical, shipbuilding, and food processing, in power industries and nuclear power stations. They are ideal for steam, oil, liquids, gases, acids, alkalines, various organic mediums and solvents.

The Material:

1. Metal strap
A. made of 08F£¬0Cr13, 0Cr18Ni19Ti, 0Cr18Ni9Ti, 00Cr18Ni10, 0Cr18Ni12Mo2Ti, 00Cr17Ni14Mo2 cold-rolled steel strap with a thickness of 0.15mm~0.25mm or decided by the supplier and acquirer.
B. the metal strap should be pre-molding V-shaped or W-shaped narrow strap with smooth and clean surface, without any defects, such as roughness, cracks, scratches, drop pits or rusty spot, etc.
C. Hardness value of the stainless steel HV¡Ü200

2. Non-metal strap
A. the non-metal packing material is specially-made asbestos strap, flexible graphite strap, PTFE strap, non-asbestos fiber strap and isinglass strap with a thickness of 0.3-1.0mm.
B. loss of weight on ignition of specially-made asbestos should be ¡Ü25%.
C. chlorine ion content of non-metal strap should be ¡Ü100PPM.
D. the recommended temperature and pressure of various medium and different metal straps.

Table1:

media    material

asbestos

graphite

non-asbestos

PTFE

Water-type media

600¡æ£¬CL 2500

550¡æ£¬CL 1500

350¡æ£¬CL 1500

-200-260¡æ£¬
CL 1500

oil-type media

500¡æ£¬CL 1500

550¡æ£¬CL 600

350¡æ£¬CL 600

-200-260¡æ£¬
CL 600

gas-type media

400¡æ£¬CL 600

550¡æ£¬CL 400

350¡æ£¬CL 400

200-260¡æ£¬
CL 400

Note: used with non-oxygenization media, graphite can reach 800¡æ.

¡¡

Table 2:

materials

temperature  ¡æ

maximum work pressure

applied media

compression ratio
%

resilience ratio %

Stress relaxation force %

Expansion graphite

-220--550

250 BAR

corrosion media

18--30

¡Ý17

¡Ü18

specially-made asbestos strap

-200---600

 

 

18--30

¡Ý19

¡Ü28

PTFE

-200-- 250

100 BAR

corrosion media

18--30

¡Ý15

¡Ü13

Non-asbestos materials

-100--250

100 BAR

 general air sealing

18--30

¡Ý19

¡Ü28

isinglass

-150--800

100 BAR

special high temperature

18--30

3) Strengthening ring. Unless specially agreed, the internal strengthening material should be the same with that of metal strap, and the materials of external strengthening ring should be A3 steel and have received anticorrosive treatment.

The main style of spiral wound gasket£º

Spiral Wound Gasket Without Inner and Outer Ring£¨R Style£©

Spiral Wound Gasket With Inner Ring£¨RIR Style£©

Spiral Wound Gasket With Outer Ring£¨CG Style£©

Spiral Wound Gasket With Inner & Outer Ring£¨CGI Style£©

 The material & configuration of spiral wound gasket£º

Winding Hoop &Inner Or Outer Ring

Filler

Normal Thickness(mm)

Material

Code

Material

Code

Temperature(¡æ)

V Shape/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

Monnel

Mon

PTFE

PTFE

250

Nickel£¬Titanium

Ni,Ti

Mica

MICA

950

Inconnel

INC

Ceramic

CER

1000

Hastelly c276£¬zirconium

HAST,ZIRC

Non-asbestos

NAF

300

Main Specification£º

Filler

Temperature

 Pressure

Graphite

-200¡æ~+550¡æ

250MPa

Asbestos

-150¡æ~+450¡æ

100MPa

PTFE

-200¡æ~+260¡æ

100MPa

The style of flange and suitable spiral wound gasket style £º

¡¡

Flange

Suitable Shape of Gasket

FF Flange

CG

CGI

RF Flange

CG

CGI

FM Flange

R

RIR

G Flange

R

RIR

T Flange

R

RIR

Terence of spiral wound gasket£º

¡¡

DIN (mm)

ANSI B16.5
BS1560 (mm)
Mss sp-44

API 605

Terence(mm)

Inner Diameter of Inner Ring/Inner Diameter of

Gasket

<=600

<=24"

>=26" and <=34"

¡À0.5

>600 and <=800

>24" and <=34"

>=36" and <=60"

¡À0.9

>800 and <=1600

>34" and <=60"

¡¡

¡À1.3

>1600

>60"

¡¡

¡À1.6

Outer Diameter of Gasket

<=600

<=24"

<=24"

¡À0.9

>600 and <=160000

>24" and <=60"

>24" and <=60"

¡À1.8

1600

>60"

¡¡

¡À2.2

Diameter of

Outer Ring

¡¡ ¡¡

>=1/2"and<=60"

¡À0.9

<=600

<=24"

¡¡

0-1.0

>600 and <=1000

>24" and <=34"

¡¡

0-1.8

>1000 and <=1600

>34" and <=60"

¡¡

0-2.2

We can also produce as standard of JIS,JPI or as request.

How to Order:

R

ZD-G1200A

RIR

ZD-G1200B

CG

ZD-G1200C

CGI

ZD-G1200D

¡¡

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