Spw Gasket with Mica Filler and Ss317 Winding for Durability

• 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:
Discover the exceptional SPW Gasket with Mica Filler and SS317 Winding, a masterpiece of durable engineering from Ningbo Dongheng Sealing Co., Ltd. This spiral wound gasket is meticulously designed with a robust outer and inner ring, featuring an expertly inserted inner ring to significantly boost performance. The addition of a precision-engineered external guide ring ensures perfect alignment on the flange face, safeguarding against potential gasket implosion into the pipe during installation. This intelligent design offers superior protection from extreme temperatures and aggressive mediums, while effectively filling the void between flanges to prevent erosion and minimize failure risk. Crafted to meet the rigorous DIN 2699 standard, this inner ring, typically matching the winding alloy, is essential for gaskets with PTFE filler per ASME B16.20 standards and is advisable for those with graphite fillers. Ideal for raised and flat faced flanges, this profile provides exceptional radial strength, courtesy of the external ring, which acts as a compression stop and prevents blowout. Often constructed from corrosion-resistant carbon steel—either painted or zinc-plated—or high-grade alloys for extreme conditions, this gasket is the epitome of resilience and reliability for demanding applications.

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