James Walker Gasket with ASME B16.20 Compliance and Mica

• 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 high-performance spiral wound gasket is meticulously engineered with a robust solid outer and inner ring. Enhanced with an additional inner ring, it significantly boosts performance by accurately centering the gasket on the flange face with an external guide ring. This inner ring is crucial, safeguarding against implosion into the pipe during installation, protecting the sealing element from the harshest temperatures and mediums, and filling the void between flanges to prevent erosion. Moreover, it markedly reduces the risk of failure. Typically crafted from the same alloy as the winding, the inner ring is a hallmark of superior design as per the German DIN 2699 standard, which mandates its inclusion in all spiral wound gaskets. Adhering to ASME B16.20 standards, inner rings are requisite for gaskets with PTFE fillers and are highly recommended for those with graphite fillers. This design is predominantly used in raised and flat-faced flanges, ensuring optimal sealing performance. The outer ring, providing additional radial strength, acts as a compression stop to thwart gasket blowout. Often manufactured from corrosion-resistant carbon steel—painted or zinc plated—or specialized alloys for elevated temperature and severe applications, the outer ring epitomizes durable functionality.

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