Semi-Metal Spiral Gasket Using SS316 Winding and Mica Filler

• 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:
Experience the unparalleled performance of our Semi-Metal Spiral Gasket, meticulously crafted with SS316 winding and Mica filler. This gasket boasts a robust solid outer and inner ring design. The addition of an inner ring markedly enhances gasket performance by providing crucial protection against implosion into the pipe during setup. This ring shields the sealing element from extreme temperatures and harsh mediums, effectively bridging the gap between flanges to combat flange erosion and minimize failure risks. Crafted typically from the same premium alloy as the winding, it complies with German DIN 2699 standards, mandating inner rings for all spiral wound gaskets. According to ASME B16.20 standards, inner rings are essential for gaskets with PTFE filler and are highly recommended for those with graphite fillers. Ideal for raised and flat-faced flanges, this design includes an external guide ring that precisely aligns the gasket on the flange face, imparting additional radial strength to prevent blowout and acting as a pivotal compression stop. The outer ring, generally forged from corrosion-resistant carbon steel – either painted or zinc-plated – is also available in high-temperature alloys for severe applications, ensuring resilience and durability.

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