Spiral Wound Gasket

Product Details

This gasket is wound altermatively by V or W shaped metal hoop and non-metal filler of various kinds of materials selected based on specific working condition.

Depend on its excellent compression resilient, high-temperature and corrosion resistance. It is suitable for sealing alteration of temperature and pressure are frequent, such as pipe, valve, pump etc. They are available in all standard flanges of sizes, such as ASME, JIS, DIN, EN. etc.

Spiral Wound Gasket Application

It is suitable for sealing flange joints, manhole and handhold covers, tube covers, boilers, heat exchangers, press vessels, pumps, compressors and valves; industries such as petrochemical, pharmaceutical, shipbuilding, and food processing, in power industries and nuclear power station. They are ideal for steam, oil, liquids, gases, acids, alkalines, various organic mediums and solvents.

Spiral Wound Gasket Standards

ASME，JIS，DIN，EN，GB，Size as requirements.

Spiral Wound Gasket Structure

1.Metal strip:the processed metal strip has good elasticity and recovery.It provides the fller enough tensile strength.

2.Filler:this part is the main body of the gasket and different material is used in different conditions

3.Centering ring:the centering ring does not come into direct contact with contained fluid.It is normally made of carbon steel and electro plate or painted to avoid corrosion.Other materials are available on request.

4.Inner ring:inner ring is used to avoid excessive compression due to high seating stress in high pressure service and it is also used to reduce turbulence in the flange area.It is normally made of the same material as the gasket metallic strip.

具体信息

Filler NormalThickness（mm）

Material Code Temperature（℃） V Shape/Ring

Asbestos ASB 500

Graphite FG 650 4.8/3.0

PTFE PTFE 250 3.2/2.0 5.5/4.0

Mica MICA 950 4.5/3.0 7.5/5.0

Ceramic CER 1000

Non-asbestos NAF 300

Metal of Material:

Hoop Material GB/T 20878 DIN ASTM Temperature(℃） Guide Ring

Color Code

SS304 06Cr 19 Ni 10 1.4301 304 -195~700 Yellow

SS316L 022Cr 17Ni12Mo2 1.4435 316L -195~700 Green

SS321 06 Cr 18Ni11Ti 1.4541 321 -195~700 Turquoise

SS347 06Cr 18Ni 11Nb 1.4550 347 -195~925 Blue

SS317 06 Cr 19Ni 13Mo3 1.4449 317 -195~760 Maroon

2205 X2 CrNi Mo N2253 1.4462 S31803 -40~300 Orange

2507 X2 CrNi MoN2563 1.4410 S32750 -40~300 Orange

MONEL 400 NiCu30Fe 2.4360 N04400 -150~820 Orange

INC600 Ni Cu 15 Fe 2.4816 N06600 -100~1090 Gold

INC625 NiCr 22 Mo9Mb 2.4856 N06625 -100~1090 Gold

INC800 X10NiCr A1Ti 3220 1.4876 N08800 -100~870 White

INC825 Ni Cr21Mo 2.4858 N08825 -100~870 White

HAST-B2 Ni Mo 28 2.4617 N10665 -185~1090 Brown

HAST-C276 Ni Mo16 Cr15W 2.4819 N10276 -185~1090 Beige

TITANIUM Ti998 3.7025 R50400 -195~1090 Purple