Sterling Seal SSI900012304GR150X12 Spiral Wound Gasket with Flexible Filler for 12″ Pipe, Pressure Class 150#, 13.375″ ID, 16.125″ OD, 304 Stainless Steel Windings/Graphite (Pack of 12)

Description

Product Overview

Sterling Seal’s Style 9000 Spiral Wound Gasket is a precision-engineered solution for high-pressure and high-temperature applications. Designed for 12-inch pipe flanges with pressure class 150#, this gasket features 304 stainless steel windings and graphite filler, ensuring exceptional sealing performance in demanding environments. The outer ring is made of carbon steel to provide structural integrity while maintaining flexibility under compression. Each gasket is clearly marked per ASME B16.20 standards for traceability and compliance. With a 13.375-inch inner diameter and 16.125-inch outer diameter, it fits standard flange configurations with ease.

Usage

This gasket is ideal for use in industrial settings such as power plants, chemical processing facilities, and HVAC systems where high-pressure steam or hot fluids are present. It’s particularly suited for heat exchangers, boiler hand holes, manholes, and other flanged joints exposed to extreme conditions. The graphite filler enhances thermal conductivity while maintaining a tight seal under fluctuating temperatures. Maintenance personnel in industrial environments will appreciate its durability and ease of installation without compromising performance.

Why Choose Us

Sterling Seal’s gaskets are manufactured to exacting tolerances using high-grade materials, ensuring long-term reliability under harsh operating conditions. The ASME-compliant markings provide traceability and confidence for engineers and inspectors. Installation is straightforward with clear guidelines provided by the manufacturer — no special tools required. Our products undergo rigorous quality control before shipment, reducing downtime and maintenance costs. Additionally, our customer support team provides technical assistance to ensure proper installation and optimal performance.

Key Features

• High-pressure resistance up to Class 150# with graphite-filled design for superior sealing under extreme conditions.
• Made from durable 304 stainless steel windings and carbon steel outer ring, ensuring long service life even in corrosive environments.
• ASME B16.20 compliant markings clearly etched on each gasket for traceability and regulatory compliance.
• Designed to prevent flange erosion, inward buckling, and turbulent flow — enhancing system efficiency and reducing maintenance needs.
• Easy installation with clear guidelines: compress fully to guide rings without damaging the gasket or affecting performance; ensure clean flanges and correct bolting materials for optimal results.

FAQ

What is the material composition of this gasket?

This gasket features 304 stainless steel windings with a graphite filler, encased in a carbon steel outer ring. This combination provides excellent thermal conductivity and resistance to high-pressure and high-temperature environments.

What are the dimensions of this gasket?

The inner diameter is 13.375 inches, outer diameter is 16.125 inches, and it’s designed for a 12-inch pipe flange with pressure class 150#.

Is this gasket suitable for high-temperature applications?

Yes, the graphite filler enhances thermal conductivity while maintaining sealing integrity under fluctuating temperatures — making it ideal for boilers and heat exchangers.

How should I install this gasket?

Install by fully compressing the gasket to its guide ring. Ensure flange faces are clean, use appropriate bolting materials, and apply bolt lubrication as needed to avoid damage or performance issues.

What is the warranty or return policy for this product?

Sterling Seal offers a standard 12-month warranty against manufacturing defects. Returns may be processed within 30 days of purchase if the item is unused and in original packaging, subject to manufacturer approval.