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Spiral Wound Gaskets

Spiral Wound Gaskets
Product details

Cixi Hongye Sealing And Packing Co.,Ltd is one of the leading China spiral wound gaskets manufacturers and suppliers with one of the famous brands, as a professional company our factory is able to produce low price heat exchanger spiral wound gasket, spiral wound gasket basic form, spiral wound gasket with inner ring, spiral wound gasket with outer ring, spiral wound gasket with inner and outer ring with high quality. Welcome to buy discount and cheap products from us.

CHYGRATM Spiral Wound Gaskets can be used to seal fluid

pressure up to 250 bar cryoprnices temperature as low as -200°C and up to elevated temperature of 1000°C. Products are widely used in the oil, gas, petrochemical process and engineering industries.

Spiral wound gaskets type:

TypeThickness(mm)
Basic form3.24.5
With inner ring 4.5
With outer ring 4.5
With inner and outer ring 4.5

Structure type:

FillerHoopInner ringOuter ring
AsbestosSUS 304Carbon steelCarbon steel
GraphiteSUS 316SUS 304SUS 304
PTFESUS 316LSUS 316SUS 316
  SUS 316LSUS 316L

The table below may be used for selected material of inner ring and winding metal. 

Trade nameAISIHardness(HB/HV)Temperature(°C)
Stainless steel 304304130~180-250~+550
Stainless steel 316316130~180-100~+550
Stainless steel 316L316L130~190-100~+550

The outer ring is generally manufactured from carbon steel with an anti-corronsion treatment. 

The table below may be used for determining the correct filler.

Filler materialTemperature(°C)Max operating pressure(kg/cm2)
Graphite-200~550250
Asbestos-150~450100
PTFE-240~260100

Flange type and Spiral Wound Gasket form

Flange typeSpiral Wound Gasket form
Flat face flange(F.F)Gasket with an outer ring
Gasket with an inner and outer ring
Raised face flange(R.F)Gasket with an outer ring
Gasket with an inner and outer ring
Male and female flange(M & F)Basic form gasket
Gasket with an inner ring
Tongue and groove flange(T & F)Basic form gasket
Gasket with an inner ring
Flat and groove flange(F & G)Basic form gasket
Gasket with an inner ring

Tolerances of thickness 

ItemThickness(mm)Tolerances(mm)
Gasket thickness4.5, 3.2+0.2
-0.1
Ring thickness3.0±0.24

The table below specifies the production diameter tolerance (Nominal pipe diameter for flanges in accordance with):

 DIN (mm)ANSI B16.5
BS1560 (mm)
Mss sp-44
API 605Tolerances
Inner ring I.D.
Gasket I.D.
<=600<=24">=26" and <=34"±0.5
>600 and <=800>24" and <=34">=36"  and <=60"±0.9
>800 and <=1600>34" and <=60" ±1.3
>1600>60" ±1.6
Gasket O.D.<=600<=24"<=24"±0.9
>600 and <=1600>24" and <=60">24" and  <=60"±1.8
1600>60" ±2.2
Outer ring O.D  >=1/2" and <=60"±0.9
<=600<=24" 0-1.0
>600 and  <=1000>24" and <=34" 0-1.8
>1000 and <=1600>34" and <=60" 0-2.2

Note:1.We also can produce according to JIS.JPI standards or client request.



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Address:No.499 Shuntai Road Kandun Industry Zone Cixi City Ningbo P.R. China 315303

Tel: 86-574-63896038

Fax: 86-574-63800036

E-mail: hongye@chinaseal.com

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