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Spiral Wound Gasket, 316L Steel & Graphite, 18-Inch 300LB Flange

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Industrial · SKU: AE0253137

Spiral Wound Gasket, 316L Steel & Graphite, 18-Inch 300LB Flange

This 18-inch spiral wound gasket is engineered for high-pressure (300LB) flange connections in demanding industrial piping systems.

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$99.99

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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 Spiral Wound Gasket, 316L Steel & Graphite, 18-Inch 300LB Flange

This 18-inch spiral wound gasket is engineered for high-pressure (300LB) flange connections in demanding industrial piping systems. Use the quick checks below to decide whether direct checkout is enough or whether an RFQ will reduce sourcing risk.

Quick Spec Check

  • Standards: SH
  • Chemical Base: Graphite
  • Sealant Type: Spiral Wound Gasket

Purchase Details

  • Online price starts at $99.99.
  • Minimum order quantity: 1 unit.
  • Availability: Contact for Availability.
  • 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

StandardsSH
Chemical BaseGraphite
Sealant TypeSpiral Wound Gasket
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 spiral wound gasket is engineered for high-pressure, high-temperature sealing in critical industrial piping and vessel flanges. Designed to meet the rigorous SH/T3407-2013 standard, it provides a dependable, long-lasting seal for demanding process applications. The gasket's construction combines the strength and corrosion resistance of 316L stainless steel with the thermal stability and compressibility of a graphite filler. The inclusion of an integral outer centering ring ensures easy alignment during installation and contains the winding, making it suitable for a wide range of service conditions in both indoor and outdoor environments.

Key Features

Engineered for high-pressure service rated for 300LB flanges Constructed with corrosion-resistant 316L stainless steel winding Graphite filler offers excellent thermal conductivity and stability Integral outer centering ring for precise alignment and winding containment Manufactured to the SH/T3407-2013 industry standard Provides a reliable seal across a broad spectrum of chemicals and media Suitable for use in both indoor and outdoor installations

Specifications

Nominal Size: 18 inches (DN450) Pressure Class: 300LB Construction: Spiral Wound Winding Metal: 316L Stainless Steel Filler Material: Graphite Outer Ring: Yes (Centering Ring) Compliance Standard: SH/T3407-2013 Indoor/Outdoor Use: Both Paintable: No Pack Quantity: 1

Applications

Sealing high-pressure process piping in chemical and petrochemical plants Flange connections in power generation and utilities Heat exchanger and pressure vessel manways Pulp and paper processing equipment Refinery and offshore oil & gas piping systems General industrial piping requiring a robust, metallic gasket solution

Frequently Asked Questions

What are the exact dimensions and pressure rating for this 18-inch spiral wound gasket?
This gasket is designed for an 18-inch (DN450) flange with a 300LB pressure class rating. It is constructed with a 316L stainless steel winding and graphite filler, conforming to the SH/T3407-2013 standard for reliable performance in demanding applications.
What are the typical applications or use cases for this specific gasket configuration?
This 316L steel and graphite gasket is suitable for both indoor and outdoor use in high-temperature and high-pressure piping systems, such as those found in petrochemical, power generation, or heavy industrial settings. Its construction is ideal for sealing flanges handling hot oils, steam, and various chemical services.
How is this gasket packaged, and what is the minimum order quantity?
This spiral wound gasket is packaged individually to prevent damage. The listed item is for a single gasket (pack size: 1), allowing you to order the exact quantity needed for your maintenance or project requirements.
Spiral Wound Gasket, 316L Steel & Graphite, 18-Inch 300LB Flange | Machrio