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Stainless Steel DN300 Flange Gasket, PN40, Pkg Qty 2

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Industrial · SKU: AF6328388

Stainless Steel DN300 Flange Gasket, PN40, Pkg Qty 2

This stainless steel flange gasket is designed for high-pressure sealing applications up to 580 PSI (PN40).

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$89.99
$44.99/each(2 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$89.99
11 - 50-5%$85.49
51+-10%$80.99
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Quick Answer

How Buyers Should Evaluate Stainless Steel DN300 Flange Gasket, PN40, Pkg Qty 2

This stainless steel flange gasket is designed for high-pressure sealing applications up to 580 PSI (PN40). 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: DN300
  • Standards: Meets Industry Standards

Purchase Details

  • Online price starts at $89.99.
  • 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
SizeDN300
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 high-performance metal wound flange gasket is engineered for critical sealing in high-pressure and high-temperature piping systems. Designed to a DN300 nominal bore (approximately 12 inches), it is constructed for PN40 pressure class service, suitable for operating pressures up to 580 PSI. The gasket's robust C2220 spiral wound design provides a resilient and reliable seal that compensates for flange face irregularities and system vibration, ensuring long-term leak prevention in demanding industrial environments.

Key Features

C2220 spiral wound construction with 304 stainless steel inner and outer rings Graphite filler material for excellent thermal conductivity and chemical resistance Rated for PN40 pressure class, suitable for services up to 580 PSI Conforms to HG/T20610-2009 dimensional and material standards Precision-engineered for consistent sealing performance and dimensional interchangeability Designed for use with raised face flanges

Specifications

Material: 304 Stainless Steel (Inner Ring, Outer Ring, and Windings) Filler Material: Flexible Graphite Size: DN300 (Approximately 12-inch nominal bore) Pressure Rating: PN40 (580 PSI) Standards: HG/T20610-2009 Connection Type: Flange Gasket Construction Type: Spiral Wound, Style C2220 with Outer Guide Ring Package Quantity: 2 Gaskets

Applications

High-pressure process piping in chemical and petrochemical plants Power generation and thermal utility systems Oil and gas transmission and refining operations Industrial steam lines and boiler feed systems Any application requiring a durable, reliable seal for ANSI Class 600 equivalent flanges

Frequently Asked Questions

What are the exact dimensions and pressure rating of this DN300 flange gasket?
This is a DN300 (approximately 12-inch nominal bore) C-shaped metal wound gasket with an outer ring. It is rated for PN40, which corresponds to a pressure rating of approximately 580 PSI. The gasket is constructed from 304 stainless steel windings filled with graphite, meeting the HG/T20610-2009 standard.
What are the typical applications for this specific type and class of gasket?
This PN40-rated gasket is designed for high-pressure, high-temperature sealing in critical flange connections, commonly found in chemical processing, petrochemical, power generation, and industrial piping systems. It is suitable for services where the media and operating conditions require a robust, spiral-wound seal with an outer containment ring for alignment and blow-out resistance.
How is this item packaged, and what is the minimum order quantity?
This gasket is sold in a convenient pack size of 2 pieces. Each gasket is individually protected to prevent damage to the sealing faces and windings during shipping and handling. You can order the exact quantity you need in multiples of this 2-piece pack.
Stainless Steel DN300 Flange Gasket, PN40, Pkg Qty 2 | Machrio