Spiral Wound Gasket made in China

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Detailed Description

1. sealing under heavy operating conditions 2. strong stress compensation, stable and reliable sealing performance 3. easy installation Normal Pressure: from 150# to 2500# Normal Diameter: from 1/2'' to 60'' Usage: Flat and raised faced diameter flanges up to and inclusive of Class 2500. Technical Benefits: >Metallic winding suited for cyclic loading >Outer ring center gasket >Inner/outer ring provides additional blow-out strength >Inner/outer ring provides a compression stop >Prevents flange erosion >Prevents inward buckling >Reduces turbulent flow >Recommended for high pressure/temperature applications Metallic Strip The standard thickness of the metallic strip is 0.2 mm. Filler Filler is normally used for thickness from 0.5 mm to 0.6 mm. - Flexible graphite 98% - Flexible graphite 99.85% - PTFE - Ceramic - Asbestos Centering ring The centering ring does not come into direct contact with contained fluid. It is normally made of carbon steel and electro plated or painted to avoid corrosion. Other materials are available on request. Inner ring Inner ring is used to avoid excessive compression due to high seating stress in high-pressure service and it is also used to reduce turbulence in the flange area. It is normally made of the same material as the gasket metallic srtip. Thickness The standard manufacturing thickness for spiral wound gaskets are: 3.2 mm; 4.5 mm; 6.5 mm (measured across metallic strip not including the filler, which protrudes slightly beyond the metal). Manufacturing tolerances The tolerance of the gasket diameters (d1, d2, d3, d4, s, s1) are stipulated by ASME B 16.20 and DIN 2632-2638 standards. The gaskets designed for non-standard flanges meet the recommendations by the ASME B 16.20.

Basic Company Information

Ningbo Rilson Sealing Material Co., Ltd.

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