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316L Stainless Steel Spiral Wound Gasket, 4 Inch 900 PSI, Pkg Qty 12

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Industrial · SKU: AE0256029

316L Stainless Steel Spiral Wound Gasket, 4 Inch 900 PSI, Pkg Qty 12

This 4-inch, 900 PSI spiral wound gasket is engineered for demanding industrial sealing applications.

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$79.99
$6.67/each(12 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$79.99
11 - 50-5%$75.99
51+-10%$71.99
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Quick Answer

How Buyers Should Evaluate 316L Stainless Steel Spiral Wound Gasket, 4 Inch 900 PSI, Pkg Qty 12

This 4-inch, 900 PSI spiral wound gasket is engineered for demanding industrial sealing 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: SH
  • Chemical Base: Polytetrafluoroethylene
  • Sealant Type: Gasket

Purchase Details

  • Online price starts at $79.99.
  • 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

StandardsSH
Chemical BasePolytetrafluoroethylene
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 4-inch, 900 PSI spiral wound gasket is engineered for demanding industrial sealing applications where reliability is critical. It is constructed for high-pressure flange connections in piping systems, heat exchangers, and pressure vessels. The gasket's robust, multi-layer design ensures a tight, long-lasting seal that compensates for flange irregularities and withstands thermal cycling and mechanical stress. Manufactured to stringent industry standards, it is suitable for both indoor and outdoor use in challenging environments.

Key Features

Engineered for high-pressure service up to 900 PSI Exceptional chemical resistance from PTFE (Polytetrafluoroethylene) filler Thermal stability for continuous operation up to 500°F Reinforced construction with 316L stainless steel inner and outer rings Compensates for flange surface imperfections and bolt load variations Manufactured in compliance with SH/T3407-2013 standards

Specifications

Nominal Pipe Size: 4 Inch Pressure Class: 900 PSI Construction: Spiral Wound Winding Material: 316L Stainless Steel with PTFE Filler Inner Ring: 316L Stainless Steel Outer Ring: 316L Stainless Steel Temperature Rating: Up to 500°F Standards: SH/T3407-2013 Chemical Base: Polytetrafluoroethylene Sealant Type: Gasket Indoor/Outdoor Use: Both Paintable: No Package Quantity: 12

Applications

High-pressure process piping in chemical and petrochemical plants Flange connections for pumps, valves, and compressors Heat exchanger and pressure vessel sealing Utility and steam line systems Applications requiring resistance to corrosive media and wide temperature ranges

Frequently Asked Questions

What are the exact specifications and materials for this gasket?
This is a 4-inch (DN40), 900 PSI (900LB) spiral wound gasket built to the SH/T3407-2013 standard. It is constructed with inner and outer rings and a winding of 316L stainless steel, filled with a Polytetrafluoroethylene (PTFE) sealing layer for chemical resistance.
What are the typical applications for this specific type of gasket?
This gasket is designed for high-pressure, high-temperature flange connections in piping and vessel systems, commonly found in chemical processing, petrochemical, and power generation industries. Its 316L/PTFE construction makes it suitable for corrosive service where a reliable seal is critical for both indoor and outdoor use.
How is this gasket packaged and sold?
This gasket is sold individually, as specified by the part number. However, for standard commercial distribution, it is packaged and shipped in a convenient bulk pack containing 12 identical gaskets.