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ASME B16.20 Spiral Wound Gasket, 12" NPS 900LB, 304 Steel & Graphite

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Unbranded · SKU: AE0255333

ASME B16.20 Spiral Wound Gasket, 12" NPS 900LB, 304 Steel & Graphite

This ASME B16.20-2007 compliant spiral wound gasket is engineered for high-pressure sealing in industrial piping systems. The 12" NPS, 900LB class gasket features a resilient graphite filler wound with a 304 stainless steel outer ring and a 304 stainless steel inner ring, providing excellent recovery and sealing stability under thermal cycling and pressure fluctuations up to 2,200 PSI. Its robust metal-wound construction is designed for reliable, long-term performance in demanding indoor service applications.

2-3 weeks
$59.99/ each

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 9-$59.99 / each
10 - 49-5%$56.99 / each
50+-10%$53.99 / each
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Technical Specifications

StandardsASME B16.20-2007
Chemical BaseGraphite
Sealant TypeSpiral Wound Gasket
Indoor/Outdoor UseIndoor
PaintableNo

Product Description

Overview

This industrial-grade spiral wound gasket is engineered for critical sealing applications in high-pressure and high-temperature piping systems. It is manufactured in strict compliance with the ASME B16.20-2007 standard, ensuring dimensional accuracy and performance reliability for flanged connections. Designed for a nominal pipe size of 12 inches and a 900-pound pressure class, this gasket delivers a robust seal capable of withstanding demanding service conditions, including thermal cycling and system pressure surges. Its construction is specifically intended for controlled indoor environments.

Key Features

ASME B16.20-2007 compliant for guaranteed interchangeability and fit Designed for 900LB class flanges, suitable for pressures up to approximately 2,200 PSI Features a durable 304 stainless steel outer ring for handling and centering

Utilizes a resilient graphite filler wound with metal for superior sealing and recovery Includes a 304 stainless steel inner ring to prevent filler extrusion in the pipe bore

Spiral wound design compensates for flange irregularities and thermal movement Engineered for long-term service life in demanding industrial applications

Specifications

Standard: ASME B16.20-2007 Chemical Base / Filler Material: Graphite Sealant Type: Spiral Wound Gasket Gasket Style: D-Type with Inner and Outer Ring Nominal Pipe Size (NPS): 12 inches Pressure Class: 900LB Outer Ring Material: 304 Stainless Steel Inner Ring Material: 304 Stainless Steel Winding Material: 304 Stainless Steel with Graphite Filler Indoor/Outdoor Use: Indoor Paintable: No Unit: Sold as a single gasket

Applications

High-pressure process piping in chemical and petrochemical plants

Power generation and utility systems

Oil and gas transmission and refining

Industrial heating and steam systems Any flanged connection requiring a reliable, code-compliant seal for 12-inch, 900LB class service

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Frequently Asked Questions

What are the key specifications of ASME B16.20 Spiral Wound Gasket, 12" NPS 900LB, 304 Steel & Graphite?
Key specifications for ASME B16.20 Spiral Wound Gasket, 12" NPS 900LB, 304 Steel & Graphite: Standards: ASME B16.20-2007, Chemical Base: Graphite, Sealant Type: Spiral Wound Gasket. See the full specification table on this page for complete details. If you need help confirming whether this product fits your application, use our AI Sourcing Assistant or submit an RFQ with your requirements.
What is the minimum order quantity and bulk pricing for ASME B16.20 Spiral Wound Gasket, 12" NPS 900LB, 304 Steel & Graphite?
The minimum order quantity is 1 unit(s). Unit price starts at $59.99. Volume discounts are available — see the tiered pricing table on this page for exact breakpoints. For quantities beyond what is listed, or for custom pricing on recurring orders, submit an RFQ and our team will respond within 24 hours.
What is the lead time and availability for ASME B16.20 Spiral Wound Gasket, 12" NPS 900LB, 304 Steel & Graphite?
This product is currently in stock and ships within 1-2 business days. Estimated lead time: 2-3 weeks. For bulk orders, lead times may vary based on quantity — request a quote for a confirmed delivery date. We can also arrange scheduled recurring shipments to prevent stockouts.
How do I get a custom quote for ASME B16.20 Spiral Wound Gasket, 12" NPS 900LB, 304 Steel & Graphite?
Click the "Request a Quote" button on this page or visit our RFQ form. Include your required quantity, delivery location, and any special requirements (specific certifications, custom packaging, recurring delivery schedule). Our sourcing team typically responds within 24 hours with pricing, confirmed lead time, and shipping options.