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316 Stainless Steel Spiral Wound Gasket, 4.5" x 2.25" x 0.18", Graphite Fill, Pkg Qty 12

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Industrial · SKU: MK0864

316 Stainless Steel Spiral Wound Gasket, 4.5" x 2.25" x 0.18", Graphite Fill, Pkg Qty 12 (5X2)

This 316 stainless steel spiral wound gasket is engineered for high-pressure sealing in demanding industrial applications.

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$69.99
$5.83/each(12 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$69.99
11 - 50-5%$66.49
51+-10%$62.99
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Quick Answer

How Buyers Should Evaluate 316 Stainless Steel Spiral Wound Gasket, 4.5" x 2.25" x 0.18", Graphite Fill, Pkg Qty 12 (5X2)

This 316 stainless steel 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

  • Standards: HG
  • Chemical Base: Graphite
  • Sealant Type: Gasket

Purchase Details

  • Online price starts at $69.99.
  • Minimum order quantity: 1 unit.
  • Pack quantity: 12 / 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

StandardsHG
Chemical BaseGraphite
Sealant TypeGasket
Indoor/Outdoor UseBoth
PaintableNo
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-pressure, high-temperature sealing in critical industrial piping and vessel applications. It is constructed with a robust metal winding and flexible filler, held securely by integral inner and outer retaining rings. This design ensures precise alignment during installation and prevents the winding from buckling under extreme pressure or vacuum conditions. The gasket is manufactured to recognized industry standards for dimensional consistency and reliable performance in demanding environments.

Key Features

D-type construction with inner and outer carbon steel retaining rings Spiral wound with 316 stainless steel for excellent corrosion resistance Center filled with flexible, high-purity graphite for a reliable seal Engineered for high-pressure service up to PN 25 (approximately 362.5 PSI) Retaining rings provide structural stability and prevent winding collapse Suitable for a wide range of temperatures and aggressive media

Specifications

Nominal Size: DN 20 Outside Diameter: 4.5 inches Inside Diameter: 2.25 inches Overall Thickness: 0.18 inches Winding Material: 316 Stainless Steel Filler Material: Flexible Graphite Retaining Ring Material: Carbon Steel Pressure Rating: PN 25 (~362.5 PSI) Standard: HG/T 20610-2009 Pack Quantity: 12

Applications

Sealing for pumps, valves, compressors, and heat exchangers High-pressure process piping in chemical and petrochemical plants Power generation and utility systems Oil and gas pipeline flanges General industrial service on ANSI/DIN standard flanges

Frequently Asked Questions

What are the exact dimensions and pressure rating for this spiral wound gasket?
This gasket has an outer diameter of 4.5 inches, an inner diameter of 2.25 inches, and a thickness of 0.18 inches. It is rated for a nominal pressure of PN25, which corresponds to approximately 362.5 PSI at 100°F, and is manufactured to the HG/T20610-2009 standard.
What are the typical applications for this specific 316 stainless steel and graphite gasket?
It is designed for sealing flanged connections in demanding industrial piping and pressure vessel systems, suitable for both indoor and outdoor use. The 316 stainless steel windings and graphite filler make it ideal for applications involving high temperatures, corrosive media, and high-pressure services common in chemical, petrochemical, and power generation.
How is this gasket packaged and sold?
This gasket is sold in a package quantity of 12 pieces. Each gasket is individually labeled with its specifications (DN20 PN25 D4424) to ensure correct identification and traceability for your inventory and installation needs.