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304 Stainless Steel & Carbon Steel D-Shaped Spiral Wound Gasket, 8.74 in Bore, 0.177 in Thick, Pkg Qty 2

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Industrial · SKU: AF4009136

304 Stainless Steel & Carbon Steel D-Shaped Spiral Wound Gasket, 8.74 in Bore, 0.177 in Thick, Pkg Qty 2

This D-shaped spiral wound gasket is engineered for high-pressure sealing 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 304 Stainless Steel & Carbon Steel D-Shaped Spiral Wound Gasket, 8.74 in Bore, 0.177 in Thick, Pkg Qty 2

This D-shaped spiral wound gasket is engineered for high-pressure sealing 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

  • System of Measurement: Metric
  • Material Grade/Class: 304
  • Material: Stainless Steel + Carbon Steel

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

System of MeasurementMetric
Material Grade/Class304
MaterialStainless Steel + Carbon Steel
Thread SizeN
FinishN
Shaft/Bore Diameter8.74 in
Thickness0.177 in
Product Details

Full Description

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

Overview

This D-shaped spiral wound gasket is engineered for high-pressure sealing in demanding industrial applications. It features a robust construction of 304 stainless steel for the winding and a carbon steel inner and outer ring, providing excellent resilience and crush resistance. With a bore diameter of 8.74 inches and a thickness of 0.177 inches, it is rated for PN100/160 pressure classes. The design ensures a reliable metal-to-metal seal for flanged connections, effectively preventing leaks in systems handling steam, oil, or gas. Each order includes two gaskets for convenient inventory or project use.

Key Features

Engineered for high-pressure service up to PN100/160 ratings D-shaped profile with integral inner and outer carbon steel rings Spiral wound construction with 304 stainless steel filler for superior resilience Provides a reliable spring-like seal under variable temperatures and pressures Carbon steel rings prevent gasket over-compression and blowout Designed for precise fit on corresponding D-shaped flanges

Specifications

Material Grade/Class: 304 Primary Material: Stainless Steel Winding Reinforcement Material: Carbon Steel Inner and Outer Rings Shaft/Bore Diameter: 8.74 inches Thickness: 0.177 inches Gasket Profile: D-Shape with Rings Pressure Class Rating: PN100/160 System of Measurement: Metric (Imperial dimensions provided) Package Quantity: 2

Applications

Sealing high-pressure steam lines and boilers Flange connections in oil and gas processing systems Chemical and petrochemical plant piping Power generation and turbine connections High-temperature fluid handling systems Any application requiring a durable, pressure-resistant seal for D-shaped flanges

Frequently Asked Questions

What are the key specifications and materials for this D-shaped gasket?
This is a D1222-type spiral wound gasket with an 8.74-inch bore diameter and a thickness of 0.177 inches. It is constructed with a 304 stainless steel winding element and carbon steel inner and outer rings, designed for pressure ratings of PN100/160 (approximately 285 PSI/456 PSI at 100°F).
What are the typical applications for this specific D-shaped gasket?
This gasket is designed for sealing flanged connections on pumps, valves, and pipework in high-pressure, high-temperature industrial systems. Its D-shape ensures proper orientation and prevents rotation, making it ideal for challenging service in chemical, petrochemical, and power generation applications.
How is this gasket packaged and sold?
This gasket is sold as a single unit, which consists of one complete D-shaped spiral wound gasket assembly. However, it is packaged with a quantity of 2 per bag, providing a convenient spare or allowing for use on a pair of flanges in a single order.
304 Stainless Steel & Carbon Steel D-Shaped Spiral Wound Gasket, 8.74 in Bore, 0.177 in Thick, Pkg Qty 2 | Machrio