Customized Spiral Wound Gaskets Manufacturer in China

• Manufacturing Specifications: ASME B16.20, EN 1514-2, JIS B2404, BS 3381.
• Flange Compatibility: ASME/ANSI B16.5, ASME B16.47 Series A & B, DIN, and EN 1092-1 flanges.
• Rigorous Testing: Backed by positive material identification (PMI) and strict batch traceability.

• Standard Spiral Wound Gasket: General industrial piping.
• Inner & Outer Ring Of SWG: Enhanced blow-out resistance.
• Spiral Wound Gasket for Heat Exchangers: Customized for thermal equipment.
• Nuclear Spiral Wound Gasket: High-integrity critical service.

Q1: How do I choose between a spiral wound gasket with an inner ring and one without?

An inner ring is strongly recommended for high pressures (Class 900+), corrosive or toxic media, and high-velocity fluids. It fills the annular space, prevents media turbulence, stops solids accumulation, and prevents inward buckling.

Q2: Can spiral wound gaskets be reused after flange disassembly?

No. Per standard ASME engineering guidelines, spiral wound gaskets are designed for single-use only. Reusing them compromises the deformed metallic V-spring and soft filler, drastically increasing the risk of leakage.

Q3: What is the maximum temperature limit for graphite-filled SWGs?

In standard oxidizing atmospheres, graphite-filled spiral wound gaskets can safely operate up to 650°C (1200°F). In steam or inert atmospheres, they withstand even higher operating ranges depending on the winding metal.