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304 Stainless Steel Spiral Wound Gasket, 3.2" Thick, DN300, Pkg Qty 2

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Industrial · SKU: PA0503

304 Stainless Steel Spiral Wound Gasket, 3.2" Thick, DN300, Pkg Qty 2

This 304 stainless steel spiral wound gasket is engineered for high-pressure industrial flange connections. It features a DN300 nominal bore, a robust 3.

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$59.99
$30.00/each(2 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$59.99
11 - 50-5%$56.99
51+-10%$53.99
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Quick Answer

How Buyers Should Evaluate 304 Stainless Steel Spiral Wound Gasket, 3.2" Thick, DN300, Pkg Qty 2

This 304 stainless steel spiral wound gasket is engineered for high-pressure industrial flange connections. It features a DN300 nominal bore, a robust 3. Use the quick checks below to decide whether direct checkout is enough or whether an RFQ will reduce sourcing risk.

Quick Spec Check

  • Standards: HG
  • Chemical Base: Graphite
  • Sealant Type: Metallic Gasket

Purchase Details

  • Online price starts at $59.99.
  • Minimum order quantity: 1 unit.
  • Pack quantity: 2 / Each.
  • Lead time: 2-3 weeks.

Use RFQ When

  • Use RFQ when you need bulk pricing, alternate pack sizes, or multi-SKU comparison.
  • Request support when fit, material, or substitute selection needs confirmation before order.
  • Escalate to sourcing when timeline, freight, or stocking strategy matters more than one-off checkout speed.

Technical Specifications

StandardsHG
Chemical BaseGraphite
Sealant TypeMetallic Gasket
Indoor/Outdoor UseIndustrial
PaintableNo
Product Details

Full Description

Application context, construction notes, and selection details for evaluating fit before purchase or repeat ordering.

Overview

This industrial-grade spiral wound gasket is engineered for high-integrity sealing in demanding pipeline and pressure vessel applications. It is constructed with a 304 stainless steel outer wind and a flexible graphite filler, creating a resilient seal capable of accommodating flange irregularities and thermal cycling. Manufactured to stringent HG standards, this gasket is designed for nominal pipe sizes of 12 inches (DN300) and is rated for a comprehensive range of pressure classes, making it a versatile and reliable component for critical fluid handling systems.

Key Features

Robust 304 stainless steel inner and outer rings for structural stability and alignment Flexible graphite filler provides superior conformability and thermal resistance Engineered for pressure classes from PN16 through PN160 Spiral wound design offers excellent spring-back and recovery under load Suitable for a wide range of industrial media and operating temperatures

Specifications

Standards: HG Chemical Base: Graphite Sealant Type: Metallic Gasket Indoor/Outdoor Use: Industrial Paintable: No Nominal Size: 12 inches (DN300) Thickness: 3.2 inches Construction: 304 Stainless Steel / Graphite Filler / 304 Stainless Steel Pressure Class Rating: PN16, PN25, PN40, PN63, PN100, PN160

Applications

High-pressure process piping in chemical and petrochemical plants Flange connections on heat exchangers, reactors, and pressure vessels Steam and utility lines in power generation facilities Pipeline systems requiring reliable, long-term sealing performance General industrial maintenance and repair operations where HG standard gaskets are specified Each order unit contains two gaskets.

Frequently Asked Questions

What are the exact dimensions and pressure ratings for this spiral wound gasket?
This gasket has an inner diameter of 12.9 inches, an outer diameter of 14.3 inches, and a thickness of 0.13 inches (3.2 mm). It is rated for multiple pressure classes: PN16 (232 PSI), PN25 (363 PSI), PN40 (580 PSI), PN63 (914 PSI), PN100 (1450 PSI), and PN160 (2321 PSI), making it suitable for a wide range of flange pressures.
What are the typical applications and chemical compatibility for this gasket?
This gasket is designed for industrial sealing applications on flanges in piping systems, heat exchangers, and pressure vessels. The 304 stainless steel windings with a graphite filler provide excellent resistance to a wide range of chemicals, hydrocarbons, and high temperatures up to approximately 900°F in non-oxidizing atmospheres, making it ideal for petrochemical, power generation, and heavy industrial use.
How is this gasket packaged and sold?
This specific DN300 gasket is sold as a single piece. However, the standard packaging quantity for this item is 2 gaskets per order. Each gasket is individually protected to prevent damage to the precise metal winding and sealing surfaces during shipping and handling.
304 Stainless Steel Spiral Wound Gasket, 3.2" Thick, DN300, Pkg Qty 2 | Machrio