Metal spiral wound gasket is formed by V-shaped or W-shaped stainless steel belt and non-metallic filler through lamination

     Summary:

     Spiral wound gasket is formed by the V-shaped or W-shaped stainless steel belt and non-metallic filler through lamination, spiral winding, and spot welding of the tops and ends. With good compression elasticity, it is applicable to the sealing parts under the intense alternating temperature and pressure, as the static sealing elements at the flange joints of pipelines, valves, pumps, heat exchangers, towers, manholes, handholes, etc. It’s widely used in petrochemical, machinery, electric power, metallurgy, shipbuilding, medicine, atomic energy, aerospace and other fields.

    standards:

    Our production is in accordance with the standards of ASME B 16.20, MSS SP-44, API 605, DIN, JIS, JPI, BS 1560, JG / T, GB / T, HG, SH, etc. Our products can be customized according to the users’ requirements on different shapes and sizes.please provide us the specific drawings.

    Types:

  1.basic type   

  2.with inner ring

  3.with outer ring

  4.with inner and outer ring

   Materials:

Steel Belt and Inner and Outer Rings		Fillers			General Thickness (mm)
Name	Code	Name	Code	Applicable Temperature°C	V-shaped Gasket/Ring	W-shaped Gasket /Ring
Carbon Steel	CS	Asbestos	ASB	500	3.2/2.04.5/3.05.5/3.0	4.8/3.0 7.2/4.0
Stainless Steel	304(L),316(L)	Graphite	FG	650
Monel	Mon	Tetrafluoro	PTFE	260
Nickel, Titanium	Ni,Ti	Mica	MICA	850
Inco Nicke	Inconel	Ceramics	CER	1300
Hastelloy Alloy	HAST	Non Asbestos	NAF	500

The material of an inner ring is generally the same as steel belt to meet the requirements of the medium and working conditions. The material of an outer ring is the same as  the pipelines and corresponding equipment casing, and the carbon steel outer ring is more economical.Orders should be furnished with the specific materials, standards, nominal diameter DN, pressure rating PN, or definite sizes directly. 

Metal Spiral wound Gaskets