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316L Stainless Steel 4 Inch Flange Metal Gasket, Pkg Qty 6

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Industrial · SKU: AE0255983

316L Stainless Steel 4 Inch Flange Metal Gasket, Pkg Qty 6

This 4-inch flange gasket is constructed with a 316L stainless steel inner and outer ring and a PTFE filler, designed for demanding chemical and high-purity applications.

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$109.99
$18.33/each(6 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$109.99
11 - 50-5%$104.49
51+-10%$98.99
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Quick Answer

How Buyers Should Evaluate 316L Stainless Steel 4 Inch Flange Metal Gasket, Pkg Qty 6

This 4-inch flange gasket is constructed with a 316L stainless steel inner and outer ring and a PTFE filler, designed for demanding chemical and high-purity 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: 316L Stainless Steel
  • Size: 4 inch
  • Standards: Meets Industry Standards

Purchase Details

  • Online price starts at $109.99.
  • Minimum order quantity: 1 unit.
  • Pack quantity: 6 / 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

Material316L Stainless Steel
Size4 inch
StandardsMeets Industry Standards
Connection TypeFlange
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 4-inch metal wound gasket is engineered for critical sealing applications in aggressive chemical processing and high-purity systems. It features a robust spiral-wound construction with a 316L stainless steel inner and outer ring and a PTFE (polytetrafluoroethylene) filler. Designed to conform to industry standards for 300 LB pressure classes, this gasket delivers a dependable, leak-tight seal that withstands corrosive media, variable temperatures, and cyclic loading. Its design ensures superior resilience and recovery, maintaining seal integrity over time to minimize downtime and prevent costly fluid loss in flange connections.

Key Features

Spiral-wound construction for superior resilience and seal recovery 316L stainless steel inner and outer rings for corrosion resistance PTFE filler providing excellent chemical inertness and purity Engineered for 300 LB pressure class flange connections Reliable performance under thermal cycling and system vibration Designed to meet recognized industry standards for dimensional compliance Prevents leakage in demanding chemical and process environments

Specifications

Material: 316L Stainless Steel and PTFE Filler Nominal Size: 4 Inch Pressure Class: 300 LB Connection Type: Flange Standards: Meets Industry Standards Pack Quantity: 6

Applications

Sealing connections in chemical processing and petrochemical plants High-purity pharmaceutical and food processing systems Acid and alkali handling pipelines General industrial process piping requiring corrosion-resistant seals Flange connections in systems with thermal cycling and vibration

Frequently Asked Questions

What are the exact specifications and pressure rating of this 4-inch metal gasket?
This gasket is a 4-inch (DN100) 300LB class spiral wound gasket, constructed with inner and outer rings and a sealing element of 316L stainless steel wound with a PTFE (Teflon) filler. It is manufactured to meet the HG/T 20631-2009 standard and is suitable for flange connections requiring a pressure rating of approximately 740 PSI at 100°F.
What are the typical applications or use cases for this specific type of gasket?
This 316L/PTFE gasket is designed for sealing 4-inch, 300LB class flanges in corrosive service applications, commonly found in chemical processing, petrochemical, and pharmaceutical industries. It is ideal for systems handling aggressive media where the corrosion resistance of 316L stainless steel and the chemical inertness of PTFE are required.
How is this product packaged, and what is the minimum order quantity?
This gasket is sold in a convenient package quantity of 6 pieces. Each gasket is individually packaged or collated to prevent damage during shipping and storage, ensuring you receive components ready for immediate installation.