Spiral Winding Gasket with PTFE Filler and Ss317 Design

• Customization: Available
• Material: Semi Metallic
• Application: Flanges
• Model NO.: XINSEN-SD
• Type: Shaft Seal
• 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 exquisite spiral wound gasket proudly features a robust outer ring and a steadfast inner ring. The carefully inserted inner ring significantly boosts gasket performance and precisely centers the gasket on the flange face, ensuring a seamless and secure fit. The addition of the inner ring is critical to avert any risk of the gasket collapsing into the pipe during installation. It serves as a guardian for the sealing element against extreme temperatures and harsh mediums, effectively bridging the gap between flanges to shield them from erosion and minimize potential failures. Crafted typically from the same resilient alloy as the winding, the inner ring adheres to the stringent DIN 2699 standard (German), which mandates its presence in all spiral wound gaskets. According to the ASME B16.20 standards, inner rings are essential for gaskets with PTFE fillers and are highly recommended for those with graphite fillers. This sophisticated profile is ideally suited for raised and flat-faced flanges. The external guide ring fortifies the gasket with additional radial strength, serving as a safeguard against blowouts and acting as a compression limiter. Typically constructed from carbon steel—either painted or zinc-plated to resist corrosion—the outer ring can also be fashioned from various alloys, accommodating higher temperatures and more demanding mediums.

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