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316L Stainless Steel Spiral Wound Gasket, 18" DN450, 285 PSI, Pkg Qty 2

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Industrial · SKU: AE0253730

316L Stainless Steel Spiral Wound Gasket, 18" DN450, 285 PSI, Pkg Qty 2

This 18-inch (DN450) spiral wound gasket is engineered for high-pressure sealing applications up to 285 PSI (PN16).

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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 316L Stainless Steel Spiral Wound Gasket, 18" DN450, 285 PSI, Pkg Qty 2

This 18-inch (DN450) spiral wound gasket is engineered for high-pressure sealing applications up to 285 PSI (PN16). Use the quick checks below to decide whether direct checkout is enough or whether an RFQ will reduce sourcing risk.

Quick Spec Check

  • Standards: Meets Industry Standards
  • Chemical Base: Fluoropolymer
  • Sealant Type: Gasket

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

StandardsMeets Industry Standards
Chemical BaseFluoropolymer
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 18-inch (DN450) spiral wound gasket is engineered for critical sealing in high-pressure and high-temperature industrial piping systems. Its robust C-shaped construction incorporates an outer centering ring, which provides exceptional stability during flange assembly and prevents over-compression. The gasket is designed to meet recognized industry standards for performance, ensuring reliability in demanding service applications. It is suitable for both indoor and outdoor use in environments such as chemical processing, petrochemical, and power generation facilities.

Key Features

C-shaped winding configuration with an integral outer guide ring Constructed with 316L stainless steel windings for superior corrosion resistance Fluoropolymer filler provides excellent chemical resistance to a wide range of media Engineered for high-pressure service up to 285 PSI (PN16) Outer ring ensures proper alignment and prevents gasket blow-out Durable metal-to-metal seal suitable for cyclic and high-temperature conditions

Specifications

Nominal Size: 18 inches (DN450) Pressure Rating: 285 PSI (PN16) Construction: Spiral Wound, C-Type with Outer Ring Winding Metal: 316L Stainless Steel Filler Material: Fluoropolymer Standards: Meets Industry Standards Sealant Type: Gasket Indoor/Outdoor Use: Both Paintable: No Package Quantity: 2

Applications

Sealing flanges in chemical and petrochemical processing pipelines High-pressure steam and utility systems in power generation Refinery and offshore oil & gas piping connections Industrial heating and cooling systems requiring reliable thermal cycling performance General industrial maintenance for pumps, valves, and heat exchangers

Frequently Asked Questions

What are the exact specifications and pressure rating for this 18-inch gasket?
This is a DN450 (18-inch nominal bore) spiral wound gasket built to standard GB/T4622.2-2003. It is rated for PN16, which corresponds to a pressure rating of approximately 285 PSI at 212°F. The gasket is constructed with 316L stainless steel windings and filler, and a 316L outer ring for stability.
What specific applications or use cases is this C-shaped gasket with an outer ring designed for?
This gasket is designed for sealing flanged connections in high-pressure piping systems found in chemical processing, oil and gas, and power generation. The C-shaped winding with a solid 316L outer ring is ideal for preventing blow-out in applications involving thermal cycling, pressure surges, or vacuum conditions, and is suitable for both indoor and outdoor use.
How is this gasket packaged, and what is the minimum order quantity?
This gasket is packaged and sold as a pair (2 pieces per pack). The packaging protects the gasket from damage during shipping and storage. Please note that the listed price and item refer to one pack containing two gaskets.
316L Stainless Steel Spiral Wound Gasket, 18" DN450, 285 PSI, Pkg Qty 2 | Machrio