Cheap Spiral Wound Gakset made in China

Product Description

Usage: Flat and raised faced diameter flanges up to and inclusive of Class ***0.
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 *8%
- Flexible graphite *9.*5%
- 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 *6.*0 and  DIN ********8 standards. The gaskets designed for non-standard flanges meet the recommendations by the ASME B *6.*0.