spiral wound gasket quote

Spiral Wound Gasket Quote

Quick Answer: Need a spiral wound gasket quote? Send the flange standard, pressure class, ID × OD × thickness, winding material, filler material, ring type, operating temperature, pressure, medium, and quantity. CORASEALS supplies standard and custom spiral wound gaskets for flanged joints, heat exchangers, and pressure vessels.

A spiral wound gasket quote should match the gasket style to the flange service conditions. Size and quantity are not enough. The metal winding, filler, ring construction, and flange pressure class affect both sealing performance and price.

What to Include in a Spiral Wound Gasket Quote

Spiral wound gaskets combine a metal strip and a soft filler. The metal strip gives mechanical strength and resistance to blowout. The filler compresses against the flange face to create the seal. A reliable quote depends on accurate application data.

Flange standard and size. Common examples include ASME B16.5, ASME B16.47, EN 1092-1, and JIS B2220.
Pressure class. For ASME flanges this may be Class 150, Class 300, Class 600, or higher. For EN flanges this may be PN 10, PN 16, PN 25, PN 40, or higher.
Gasket dimensions. Provide ID × OD × thickness in millimeters or inches. State whether the gasket includes a centering ring, an inner ring, or both.
Winding material. Common options include 304 stainless steel, 316L stainless steel, 321 stainless steel, 347 stainless steel, Monel, and Inconel.
Filler material. Common options include flexible graphite, PTFE, mica, and ceramic.
Operating conditions. Include temperature range, pressure range, and the medium sealed.
Quantity and delivery requirement. State the number of pieces and whether the quote is for a standard catalog size or a custom drawing.

Material Selection for Spiral Wound Gaskets

The winding material and filler material must be selected together. A common combination is 316L stainless steel with flexible graphite. A 316L stainless steel and flexible graphite combination is used in many steam, oil, and chemical services. For aggressive acids or oxidizing media, the winding material may need to be a higher alloy or the filler may need to change to PTFE.

Winding Material	Common Application
304 stainless steel	General water, steam, and oil services
316L stainless steel	Chemical, petrochemical, and marine environments
321 or 347 stainless steel	High temperature services where carbide precipitation is a concern
Monel	Salt water and some acid services
Inconel	Corrosive and high temperature media

Filler Material	Common Application
Flexible graphite	Steam, high temperature hydrocarbon, and general plant services
PTFE	Aggressive chemicals, acids, and caustic media
Mica	Very high temperature services
Ceramic	Very high temperature services

Standard and Custom Spiral Wound Gaskets

CORASEALS quotes standard flange gaskets by flange size and pressure class. Custom gaskets are quoted by drawing, sample, or measured dimensions. For heat exchangers and pressure vessels, the original drawing or a clear photo with ID, OD, and thickness helps reduce pricing errors.

How to Get a Spiral Wound Gasket Quote

For a spiral wound gasket quote, send us the gasket type, flange standard, pressure class, ID × OD × thickness, winding material, filler material, ring type, operating temperature, pressure, medium, and required quantity. If you have a drawing or sample photo, include that with the inquiry. CORASEALS will confirm the material combination and dimensions before pricing.

Frequently Asked Questions

What information is required for a spiral wound gasket quote?

Provide flange standard, pressure class, ID × OD × thickness, winding material, filler material, ring type, operating temperature, pressure, medium, and quantity.

What is the difference between a gasket with an inner ring and one without an inner ring?

An inner ring prevents inward buckling and protects the sealing element in high pressure or high temperature services. A centering ring helps locate the gasket on the flange. Some general service gaskets use only a centering ring. The flange design and service conditions determine the correct style.

Can CORASEALS supply nonstandard spiral wound gasket sizes?

Yes. CORASEALS can quote custom sizes based on drawings, samples, or measured ID × OD × thickness.

Which filler material should be used for steam service?

Flexible graphite is commonly selected for steam service because it seals well on flanged joints and tolerates high temperatures. The final choice depends on steam pressure, temperature, and the flange system.

How do I order a replacement spiral wound gasket if I only know the flange size?

Send the flange standard, nominal size, pressure class, and the sealed medium. CORASEALS can help confirm the correct gasket dimensions and material combination for the flange.