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Type B Metal Spiral Wound Gasket, 4.19" Bore, 316L Stainless Steel, 300LB, Pkg Qty 10

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Industrial · SKU: AE0249435

Type B Metal Spiral Wound Gasket, 4.19" Bore, 316L Stainless Steel, 300LB, Pkg Qty 10

This Type B spiral wound gasket is engineered for high-pressure sealing in piping and vessel flanges. It features a 4.

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$99.99
$10.00/each(10 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 Type B Metal Spiral Wound Gasket, 4.19" Bore, 316L Stainless Steel, 300LB, Pkg Qty 10

This Type B spiral wound gasket is engineered for high-pressure sealing in piping and vessel flanges. It features a 4. 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: Imperial
  • Material Grade/Class: 83.49 gal
  • Material: Stainless Steel

Purchase Details

  • Online price starts at $99.99.
  • Minimum order quantity: 1 unit.
  • Pack quantity: 10 / 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 MeasurementImperial
Material Grade/Class83.49 gal
MaterialStainless Steel
Thread SizeN
FinishN
Shaft/Bore Diameter4.19 in
Thickness0.177 in
Product Details

Full Description

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

Overview

The Type B Spiral Wound Gasket is a high-performance sealing solution designed for critical service in piping and pressure vessel flanges. Manufactured to the HG/T 20631-2009 standard, this gasket is engineered to deliver reliable, leak-free containment in high-pressure and high-temperature applications. Its robust construction ensures long-term stability and resistance to thermal cycling, making it an essential component for maintaining system integrity in demanding industrial environments.

Key Features

Engineered for high-pressure service up to 300LB ratings Constructed with a spiral wound core of 316L stainless steel for superior corrosion resistance Resilient graphite filler provides excellent sealing and thermal conductivity Integral internal centering ring ensures precise and secure alignment on the flange Consistent 0.177-inch thickness for uniform bolt loading and a reliable seal Suitable for a wide range of industrial media, including steam, hydrocarbons, and chemicals

Specifications

System of Measurement: Imperial Material Grade/Class: 316L Stainless Steel Gasket Type: Type B (with Inner Ring) Nominal Pipe Size: 4 inch Bore Diameter: 4.19 inches Thickness: 0.177 inches Pressure Class: 300LB Filler Material: Flexible Graphite Winding Material: 316L Stainless Steel Pack Quantity: 10

Applications

Sealing for ANSI standard raised face flanges in chemical processing High-pressure steam lines in power generation facilities Piping systems in oil and gas production and refining Heat exchangers, valves, pumps, and vessel manways Any application requiring a robust, metallic gasket for critical sealing

Frequently Asked Questions

What are the key specifications and materials for this Type B gasket?
This is a Type B metal spiral wound gasket with an inner ring, conforming to the HG/T 20631-2009 standard. It has a 4.19-inch bore diameter, is rated for 300LB pressure, and is constructed from 316L stainless steel windings filled with graphite, with a 316L stainless steel inner ring.
What are the typical applications or use cases for this specific gasket?
This gasket is designed for high-pressure, high-temperature sealing in flanged connections for piping, valves, and vessels in industries like chemical processing, oil and gas, and power generation. Its 300LB rating and 316L stainless steel construction make it suitable for corrosive service environments.
How is this gasket packaged and sold?
This gasket is sold in a package quantity of 10 units. Each individual gasket is specified as DN100 (approximately 4.19-inch bore) with a thickness of 0.177 inches, ensuring you receive a complete set for multiple joint installations or maintenance spares.
Type B Metal Spiral Wound Gasket, 4.19" Bore, 316L Stainless Steel, 300LB, Pkg Qty 10 | Machrio