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316L Stainless Steel Spiral Wound Gasket, 12 Inch 300LB, Pkg Qty 2

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Industrial · SKU: AE0249451

316L Stainless Steel Spiral Wound Gasket, 12 Inch 300LB, Pkg Qty 2

This 12-inch, 300LB class spiral wound gasket is constructed with 316L stainless steel windings and a graphite filler, providing a reliable seal for demanding industrial piping and flange applications.

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$79.99
$39.99/each(2 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$79.99
11 - 50-5%$75.99
51+-10%$71.99
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Quick Answer

How Buyers Should Evaluate 316L Stainless Steel Spiral Wound Gasket, 12 Inch 300LB, Pkg Qty 2

This 12-inch, 300LB class spiral wound gasket is constructed with 316L stainless steel windings and a graphite filler, providing a reliable seal for demanding industrial piping and flange applications. 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: Gasket

Purchase Details

  • Online price starts at $79.99.
  • 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 TypeGasket
Indoor/Outdoor UseBoth
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-performance sealing in critical piping and pressure vessel applications. Designed to meet the rigorous HG/T 20631-2009 standard, it provides a dependable, leak-tight seal for 12-inch nominal pipe size flanges rated for 300LB pressure classes. The gasket's robust construction combines the strength of metal with the sealing properties of a flexible filler, making it a preferred solution for challenging service conditions across various process industries.

Key Features

Constructed with corrosion-resistant 316L stainless steel windings Features a resilient, high-purity graphite filler for superior conformability Integral internal centering ring ensures precise alignment on the flange Provides excellent resistance to extreme temperatures and thermal cycling Seals effectively against a broad spectrum of corrosive media and high pressures Suitable for both indoor and outdoor installation environments

Specifications

Nominal Pipe Size: 12 inches Pressure Class: 300LB Construction: 316L Stainless Steel Windings with Graphite Filler Design Standard: HG/T 20631-2009 Gasket Type: Spiral Wound with Internal Centering Ring Chemical Base: Graphite Sealant Type: Gasket Indoor/Outdoor Use: Both Paintable: No Package Quantity: 2 gaskets

Applications

Sealing flanges in chemical and petrochemical processing systems High-temperature and high-pressure steam lines Oil and gas pipeline connections and refinery equipment Power generation and boiler feed systems Marine and offshore platform piping General industrial process piping requiring reliable, long-term sealing solutions

Frequently Asked Questions

What are the exact specifications and pressure rating for this 12-inch gasket?
This is a 12-inch (DN300) spiral wound gasket with a 300LB pressure rating, constructed with 316L stainless steel windings and a graphite filler. It conforms to the HG/T 20631-2009 standard and is designed for sealing flanged connections in high-pressure applications.
What are the typical applications for this type of metal gasket?
This gasket is suitable for sealing flanges in demanding industrial piping systems, including those in chemical processing, petrochemical, and power generation. It is effective for both indoor and outdoor use with media such as steam, oil, and various chemicals, operating within the temperature and pressure limits of its 316L/graphite construction.
How is this gasket packaged, and what is the minimum order quantity?
This gasket is sold in a package quantity of 2. Each gasket is individually identified with its size (12 inch), pressure class (300LB), and material (B0525 - 316L/Graphite/316L) to ensure correct application and traceability.
316L Stainless Steel Spiral Wound Gasket, 12 Inch 300LB, Pkg Qty 2 | Machrio