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Stainless Steel 18.5 Inch Flanged D-Type Spiral Wound Gasket, Pkg Qty 2

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Industrial · SKU: AE0253980

Stainless Steel 18.5 Inch Flanged D-Type Spiral Wound Gasket, Pkg Qty 2

This D-type spiral wound gasket is designed for high-pressure, high-temperature flanged connections in demanding industrial applications.

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$99.99
$49.99/each(2 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$99.99
11 - 50-5%$94.99
51+-10%$89.99
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Quick Answer

How Buyers Should Evaluate Stainless Steel 18.5 Inch Flanged D-Type Spiral Wound Gasket, Pkg Qty 2

This D-type spiral wound gasket is designed for high-pressure, high-temperature flanged connections in demanding industrial applications. Use the quick checks below to decide whether direct checkout is enough or whether an RFQ will reduce sourcing risk.

Quick Spec Check

  • Material: Stainless Steel
  • Size: 18.5 inches
  • Standards: Meets Industry Standards

Purchase Details

  • Online price starts at $99.99.
  • 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

MaterialStainless Steel
Size18.5 inches
StandardsMeets Industry Standards
Connection TypeFlanged
Reel TypeNot Applicable
Hose CapacityNot Applicable
Mount TypeNot Applicable
Product Details

Full Description

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

Overview

This D-type spiral wound gasket is engineered for high-integrity sealing in critical flanged connections. It is specifically constructed to handle elevated pressures and temperatures within industrial piping systems, including those in chemical processing, power generation, and oil and gas applications. The design incorporates a centering ring for precise alignment during installation, preventing seal blow-out and ensuring optimal performance under dynamic conditions. Each package contains two gaskets, providing a convenient supply for maintenance or assembly projects.

Key Features

Robust D-type construction with inner and outer centering rings Primary sealing element wound from 304 stainless steel with a PTFE (polytetrafluoroethylene) filler Inner and outer reinforcing rings also constructed from 304 stainless steel Engineered for a pressure rating of approximately 360 PSI (PN25) Suitable for high-temperature service compatible with the materials Provides excellent chemical resistance due to the inert PTFE filler Prevents leakage in critical flange connections

Specifications

Material: 304 Stainless Steel (winding and rings) with PTFE Filler Size: 18.5 inch Nominal Diameter (DN400) Pressure Rating: PN25 (Approximately 360 PSI) Standards: Manufactured to HG/T20610-2009 industry specifications Connection Type: Flanged Gasket Type: Spiral Wound, D-Style with Inner and Outer Rings Package Quantity: 2

Applications

Sealing high-pressure pipe flanges in chemical and petrochemical plants Connections in power generation and steam systems Critical process piping in oil and gas refineries Industrial fluid handling systems requiring reliable, leak-free performance Maintenance and repair of existing flanged infrastructure meeting the specified standards

Frequently Asked Questions

What are the exact specifications and materials of this gasket?
This is a D-type spiral wound gasket with an 18.5 inch nominal diameter, designed for PN25 (Class 150) pressure rating flanges. It is constructed with a 304 stainless steel inner and outer ring, a 304 stainless steel winding, and a polytetrafluoroethylene (PTFE) filler for chemical resistance.
What are the typical applications for this specific gasket?
This gasket is designed for sealing flanged connections in piping systems handling steam, oil, gas, and chemical services at elevated pressures and temperatures up to 500°F. It is suitable for use in industrial settings such as petrochemical plants, power generation, and heavy manufacturing where a reliable, metal-reinforced seal is required.
How is this gasket packaged and sold?
This gasket is sold in a convenient package quantity of 2. Each gasket is individually protected to prevent damage to the sealing surfaces during shipping and handling, ensuring they arrive ready for installation.