JIS Hg20631 Spiral Wound, Metal Gasket, Winding Filler for Safety

• Customization: Available
• Material: Semi Metallic
• Application: Flanges
• Model NO.: XINSEN-SD
• Performance: Wear
• Shape: O-Ring
• Standard: Standard, Nonstandard
• Gasket Standard: ASME B16.20, En1514-2, JIS, Hg20631
• Filler: Graphite, PTFE, Mica, Ceramic
• Winding: SS304, SS316, Ss317, Ss347, Inconel, Monel,
• Inner Ring: SS304, SS316, Ss317, Ss347, Inconel, Monel,
• Outer Ring: SS304, SS316, Ss317, Ss347, Inconel, Monel,
• Transport Package: Wooden Carton
• Specification: DN15 ~ DN10000
• Trademark: XINSEN/DONHONSIL
• Origin: China
• Production Capacity: 50000000PCS/Year

Product Description

SPIRAL WOUND GASKET

Product Type:XINSEN-SD
Features:
Meticulously crafted for superior sealing performance, this spiral wound gasket boasts both a robust outer and a specialized inner ring. The innovative addition of an inner ring elevates the gasket's capabilities, ensuring enhanced protection and stability. This strategically inserted component safeguards against potential implosion into the pipe during installation, shields the sealing element from extreme conditions, and fills the void between flanges to prevent erosion, significantly reducing failure risk. Typically constructed from the same high-grade alloy as the winding, the inner ring aligns with the DIN 2699 standard, mandating its presence in all spiral wound gaskets. According to ASME B16.20 standards, inner rings are essential for PTFE-filled gaskets and highly recommended for those with graphite fillers, making this design ideal for both raised and flat-faced flanges. Furthermore, the external guide ring not only ensures precise centering on the flange face but also imparts additional radial strength, acting as a critical compression stop to prevent blowouts. Commonly manufactured from corrosion-resistant carbon steel, which is either painted or zinc-plated, the outer ring can also be customized with high-temperature alloys for use in more demanding applications requiring superior protection.

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

Detailed Photos