Hg20631 Semi-Metal 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:
This remarkable spiral wound gasket boasts a robust solid outer and inner ring, skillfully engineered to amplify performance and ensure flawless operation. A specially inserted inner ring fortifies the gasket, safeguarding it from imploding into the pipe during installation and providing resilient protection for the sealing element against extreme temperatures and harsh substances. Additionally, it fills the void between flanges to prevent erosion and minimize failure risks. The inner ring typically mirrors the winding's alloy composition. Compliant with the rigorous DIN 2699 standard, inner rings are mandatory for all spiral wound gaskets. As per ASME B16.20 standards, PTFE filler gaskets require inner rings, which are also highly recommended for graphite fillers. This sophisticated design seamlessly integrates with both raised and flat-faced flanges, with the outer ring delivering exceptional radial strength to avert blowouts and acting as a compression stop. While carbon steel is commonly used for the outer ring, it can be constructed from alloys for higher temperature demands and severe applications, often treated with paint or zinc plating to resist corrosion.

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