🔷 Spiral Wound Gasket

High Pressure Metallic Gasket Manufacturer – VikTech Fittings

🔹 Product Overview

VikTech Fittings is a leading manufacturer and supplier of premium quality Spiral Wound Gaskets designed for high-pressure and high-temperature flange connections.

Our spiral wound gaskets are manufactured in accordance with ASME B16.20 standards and are suitable for critical applications in oil & gas, petrochemical, and power generation industries.

Available for Pressure Classes:
✔ Class 150
✔ Class 300
✔ Class 600
✔ Class 900
✔ Class 1500
✔ Class 2500

Size Range: ½” to 60” (Custom sizes available)

🔷 What is a Spiral Wound Gasket?

A Spiral Wound Gasket is a semi-metallic gasket constructed by spirally winding a pre-formed metal strip and a soft filler material together.

The metal strip provides strength and resilience, while the filler material ensures tight sealing performance.

It is designed to withstand:

✔ High pressure
✔ High temperature
✔ Thermal cycling
✔ Mechanical vibration

🔷 Construction of Spiral Wound Gasket

A spiral wound gasket typically consists of:

1️⃣ Metal Winding Strip

Common materials:

• Stainless Steel 304

• Stainless Steel 316 / 316L

• Carbon Steel

• Inconel

• Monel

2️⃣ Filler Material

• Graphite

• PTFE

• Ceramic Fiber

3️⃣ Centering Ring (Outer Ring)

Ensures proper alignment during installation.

4️⃣ Inner Ring (Optional)

Provides additional strength and prevents inward buckling under high pressure.

🔷 Types of Spiral Wound Gaskets

1️⃣ Without Ring (Basic Type)

• Used in tongue & groove flanges

• Suitable for low to medium pressure

2️⃣ With Outer Ring (CG Type)

• Most commonly used type

• Designed for raised face flanges

• Prevents over-compression

3️⃣ With Inner & Outer Ring (CGI Type)

• Ideal for high-pressure applications

• Prevents buckling

• Enhances sealing performance

🔷 Technical Specifications

• Standard: ASME B16.20

• Pressure Class: 150# to 2500#

• Temperature Range: Up to 550°C (depending on filler material)

• Size Range: ½” to 60”

• Face Type: RF, RTJ, T&G, Male-Female

• Color Coding: As per standard for material identification

🔷 Materials Available

Metal Strip Options:

• SS 304

• SS 316 / 316L

• Carbon Steel

• Alloy Steel

• Inconel

• Monel

Filler Options:

• Graphite (High Temperature)

• PTFE (Chemical Resistant)

• Ceramic Fiber

Custom material combinations available on request.

🔷 Advantages of Spiral Wound Gasket

✔ Excellent sealing under high pressure
✔ Suitable for high temperatures
✔ Resistant to vibration and pressure fluctuations
✔ Long service life
✔ Easy installation
✔ Reusable in certain conditions

🔷 Applications & Industries

Spiral wound gaskets are widely used in:

• Oil & Gas Industry

• Refineries

• Petrochemical Plants

• Power Plants

• Chemical Processing Units

• Steam Systems

• Heat Exchangers

• Pressure Vessels

They are especially suitable for critical flange joints.

🔷 Quality Control & Testing

All spiral wound gaskets undergo:

✔ Dimensional Inspection
✔ Material Verification
✔ Visual Inspection
✔ Compression Testing
✔ Third Party Inspection (if required)

Material Test Certificates provided as per EN 10204 3.1 / 3.2.

🔷 Why Choose VikTech Fittings?

✔ Reliable Sealing Solutions Provider
✔ High-Quality Raw Materials
✔ Custom Size Manufacturing
✔ Competitive Pricing
✔ Bulk Stock Availability
✔ Fast Global Delivery