PTFE Inner Ring 316 Hoop 321 Filler 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:

Discover unparalleled durability and performance with this spiral wound gasket. Engineered with solid outer and inner rings, it offers enhanced performance through the insertion of an inner ring, ensuring precise centering on the flange face via an external guide ring. This inner ring serves multiple crucial functions: preventing gasket implosion during installation, shielding the sealing element from extreme conditions, filling voids to avert flange erosion, and substantially reducing failure risk. Typically crafted from the same alloy as the winding, the inner ring aligns with DIN 2699 standards and is mandatory for gaskets with PTFE fillers under ASME B16.20 standards—especially significant for graphite fillers. Designed for raised and flat-faced flanges, this gasket includes an external ring that adds robust radial strength to counteract blowouts and serves as a compression stop. While often constructed from corrosion-resistant carbon steel, outer rings can also be made from alloys for more demanding temperature and 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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