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304 Stainless Steel PTFE Spiral Wound Gasket, 8.90 in Bore, Pkg Qty 12

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Industrial · SKU: AE0250013

304 Stainless Steel PTFE Spiral Wound Gasket, 8.90 in Bore, Pkg Qty 12

This spiral wound gasket is engineered for high-pressure sealing in demanding industrial piping and flange applications.

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$159.99
$13.33/each(12 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$159.99
11 - 50-5%$151.99
51+-10%$143.99
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Quick Answer

How Buyers Should Evaluate 304 Stainless Steel PTFE Spiral Wound Gasket, 8.90 in Bore, Pkg Qty 12

This spiral wound gasket is engineered for high-pressure sealing in demanding industrial piping and flange applications. Use the quick checks below to decide whether direct checkout is enough or whether an RFQ will reduce sourcing risk.

Quick Spec Check

  • System of Measurement: Metric
  • Material Grade/Class: 304
  • Material: Stainless Steel + PTFE

Purchase Details

  • Online price starts at $159.99.
  • 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

System of MeasurementMetric
Material Grade/Class304
MaterialStainless Steel + PTFE
Thread SizeN
FinishN
Shaft/Bore Diameter8.90 in
ThicknessN
Product Details

Full Description

Application context, construction notes, and selection details for evaluating fit before purchase or repeat ordering.

Overview

This spiral wound gasket is engineered for high-pressure sealing in demanding industrial piping and flange applications. It features a robust construction with a 304 stainless steel outer and inner ring, wound continuously with a PTFE (polytetrafluoroethylene) filler. This combination delivers a reliable, leak-tight seal in systems operating up to 232 PSI (PN16) and offers superior resistance to a wide range of corrosive chemicals and media. The gasket is manufactured to conform with the GB/T4622.2-2003 standard, ensuring dimensional consistency and performance reliability for critical connections.

Key Features

Engineered for high-pressure service up to 232 PSI (PN16) Superior chemical resistance provided by PTFE filler Durable 304 stainless steel inner and outer rings for structural integrity Spiral wound design compensates for flange irregularities and thermal cycling Conforms to GB/T4622.2-2003 standard dimensions Suitable for demanding and corrosive service environments

Specifications

Material Grade/Class: 304

Material

Stainless Steel + PTFE Shaft/Bore Diameter: 8.90 in Nominal Pipe Size: DN200 Pressure Rating: PN16 (232 PSI) Design Standard: GB/T4622.2-2003 Pack Quantity: 12

Applications

Sealing flanges in chemical and petrochemical processing pipelines High-pressure fluid transfer systems in oil and gas production Power generation and utility plant piping Industrial heating, ventilation, and refrigeration systems Any application requiring a resilient, chemical-resistant seal for ANSI Class 150 flanges or equivalent

Frequently Asked Questions

What are the key specifications and dimensions of this spiral wound gasket?
This gasket has a bore diameter of 8.90 inches and is constructed to the GB/T4622.2-2003 standard for DN200 PN16. It is made from 304 stainless steel with a PTFE (Teflon) filler, featuring an inner ring also made of 304 stainless steel for added stability.
What are the typical applications and pressure/temperature limits for this gasket?
This gasket is designed for flange connections in piping systems rated for PN16, which corresponds to a pressure rating of approximately 232 PSI. The 304 stainless steel and PTFE construction makes it suitable for a wide range of corrosive chemicals and temperatures up to 450°F, ideal for chemical, petrochemical, and food processing applications.
How is this item packaged and sold?
This gasket is sold in a convenient pack quantity of 12. Each gasket is individually packaged or bundled together within the pack to prevent damage during shipping and handling.
304 Stainless Steel PTFE Spiral Wound Gasket, 8.90 in Bore, Pkg Qty 12 | Machrio