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China Sunway Sealing Material Factory > Selling Leads > SPIRAL WOUND GASKET

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China Sunway Sealing Material Factory

SPIRAL WOUND GASKET

SPIRAL WOUND GASKET

Detailed Product Description

Spiral wound gaskets type:

Type	Thickness(mm)
Basic form	3.2	4.5
With inner ring		4.5
With outer ring		4.5
With inner and outer ring		4.5

Filler	Hoop	Inner ring	Outer ring
Asbestos	SUS 304	Carbon steel	Carbon steel
Graphite	SUS 316	SUS 304	SUS 304
PTFE	SUS 316L	SUS 316	SUS 316
		SUS 316L	SUS 316L

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

Trade name	AISI	Hardness(HB/HV)	Temperature(°C)
Stainless steel 304	304	130~180	-250~+550
Stainless steel 316	316	130~180	-100~+550
Stainless steel 316L	316L	130~190	-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 material	Temperature(°C)	Max operating pressure(kg/cm2)
Graphite	-200~550	250
Graphite	-200~550	250
PTFE	-240~260	100

Flange type and Spiral Wound Gasket form

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

Tolerances of thickness

Item	Thickness(mm)	Tolerances(mm)
Gasket thickness	4.5, 3.2	+0.2 -0.1
Ring thickness	3.0	±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 605	Tolerances
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 <=160000	>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

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