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Yichang Xincheng Graphite Co.,Ltd.

[Province: Zhejiang ]

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Spiral Wound Gasket

Payment Terms:	T/T,L/C or D/P

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Basic Info.

Brand Name: XC
Specification: any sizes are available
Function: all industries
Certificate: ISO 9001
Export Area: world wide
Place of Origin: Zhejiang
Means of Transport: by sea or by air

Supply Capacity

Packing:on request
Delivery Date: 5 days

Spiral Wound Gasket is the ideal gasket in the semi-metallic category. A narrow strip of V-shap metal hoop is spirally wound under tension with a filler cushion between the lamination of the metal and is spot-welded at both ends.
This unique construction of a spring-like metal and soft filler provides gasket excellent characteristics:
※ Resistance to high temperature and high pressures.
※ Great resilience which allows the gasket to adjust automatically to change in operating conditions, such as pressure and thermal shocks, vibrations etc.
※ Excellent sealability is maintained with comparatively small gasket area.
※ Good tolerance for flange surface finish irregularities.
※ Can be designed to any dimensions economically in circular or moderately noncircular shape. Available in a variety of hoop metals and filler materials to satisfy specific operating conditions.

※Structure:

Type	Cross section	Hoop material	Filler material	Inner, Outer ring material	Normal Thickness
					Gaskets	Rings
Basic type		CS,304(L)SS, 316(L)SS,321SS,347LSS,Monel, Titanium,Inconel,Hastelloy B/C, Incoloy,etc.	Asbestos	CS,304(L)SS, 316(L)SS,321SS, 347LSS,Monel, Titanium, Inconel, Hastelloy B/C Incoloy,etc.	2.5(.0624”) 3.2(.125”) 4.5(.175”) 6.4(.250”) 7.25(.285”)	2 3 4
With inner ring			Non-asbestos
With outer ring			Flexible graphite
With inner &out ring			PTFE
			Ceramic

※Available Sizes:

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

Note: We also can produce according to GB4622.2-93,JB4705-92,JB/T4719-92,SH3407-96,HG20610-97,
JB/T90-94,ANSI,API,JPI,JIS,DIS,etc.standards or clients request.

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