Spiral Wound Gasket Using Alloy20 Inner Ring and Graphite

• Customization: Available
• Material: Metal+Non-Metal
• Application: Flanges
• Model NO.: XINSEN-SD
• Type: Shaft Seal
• Performance: Wear
• Shape: O-Ring
• Standard: Standard, Nonstandard
• Inner Ring: 304,316,Monel,Alloy20, Uns S32750
• Hoope: 304,316,321,317,Monel, 32750, Inconel
• Filler: Graphite, Mica, Ceramic
• Outer Ring: 304, 316, 321, Monel, Inconel
• Transport Package: Wooden Carton
• Specification: DN15 ~ DN10000
• Trademark: XINSEN/DONHONSIL
• Origin: China
• HS Code: 8484100000
• Production Capacity: 50000000PCS/Year

Product Description

SPIRAL WOUND GASKET

Product Description

DESCRIPTION:

Product Type:XINSEN-SD

Features:

The Spiral Wound Gasket with Alloy20 Inner Ring and Graphite by Ningbo Dongheng Sealing Co., Ltd. exemplifies high-performance engineering. This sophisticated gasket features a robust outer and inner ring design, with an expertly inserted inner ring to elevate its sealing prowess. This ring meticulously aligns the gasket on the flange face, preventing any implosion into the pipe during installation. It also serves to safeguard the sealing element from extreme temperature fluctuations and diverse media exposure. Furthermore, it adeptly fills the void between flanges, guarding against potential flange erosion, while significantly minimizing the risk of failure. Constructed from the same premium alloy as the winding, this inner ring adheres to the rigorous DIN 2699 German standard and is indispensable according to ASME B16.20 standards, especially for gaskets with PTFE filler, and critical for those using graphite fillers. Designed for both raised and flat faced flanges, the protective external guide ring imparts additional radial strength, effectively preventing blowouts and functioning as a reliable compression limiter. Typically crafted from carbon steel—either painted or zinc-plated to resist corrosion—it can also be custom-made from high-grade alloys for demanding high-temperature and severe medium conditions.

Product Parameters

Style	Construction	Flange	Hoop material	Filler		Inner & outer Material	Size (mm)	Thickness (mm)
				Material	Code			V	W
	Basic type	Tongue and Groove	304 304L 316 316L 321 Alloy825 Monel400 Inconel625 S32750	Asbestos Graphite PTFE Non-asbestos	ASB FG PTFE NACF	Carbon steel 304 (L)  321 316(L) Alloy825 Monel400 Inconel625 S32750	16-3000	3.2 4.5	4.8 5.5 7.5
	With outer ring	Raised face Flat face
	With inner ring	Male and Female
	With inner, outer ring	Raised face Flat face
	For heat exchanger	Heat exchanger

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