ASME B16.20 Spiral Wound Gaskets, Flange Gaskets, Valve Gaskets

Application scope of spirally-wound gasket:
Sealing of flange connection in pipelines, valves, pressure containers, condensers, heat exchangers, towers, manholes, handholes and so on in such industries as petroleum, chemical engineering, metallurgy, electricity, shipping and machinery.

The following table lists metallic materials for inner ring and wrapping:

Outer ring is often made from carbon steel subject to anti-corrosive treatment.

Flange type and form of wrapping pad:

Wrapping pad thickness tolerance:

Key technical parameter of metallic wrapping pad:

The following table refers to tolerances for the diameter of wrapping pad (namely the nominal pipe diameters for the use of flange):

Note: We also tailor products based on JIS, JPI or customer requirement

Ordering information: The following parameters should be specified during ordering for metallic wrapping pad
Example:
1. Type of metallic wrapping pad: A B C D
2. Flange standard: ASME B16.20
3. Pipe through diameter, pressure rating: 2"150Lbs
4. Material: inner ring SS316; metallic wrapping belt SS316; packing belt: graphite; outer ring; carbon steel

Spiral Wound Gasket is the ideal gasket in the semi-metallic category. A narrow strip of V-shap metal hoop is spirally wound under tension with a filler cushion between the lami nation of the metal and is spot-welded at both ends.

This unique construction of a spring-like metal and soft filler provides gasket excel-lent characteristics.

Resistance to high temperature and high pressures.
Great resilience which allows the gasket to adjust automatically to change in operating conditions, such as pressure and thermal shocks, vibrations etc. 


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Sản phẩm doanh nghiệp: C&N pipeline industrial limited