SPIRAL WOUND GASKET MANUFACTURER
SPIRAL WOUND GASKET MANUFACTURER
We manufacture Spiral wound gaskets which are semi-metallic, comprising of a spirally wounded preformed metal strip and a nonmetallic filler material, such as graphite or PTFE on the outer periphery of the inner ring and superposed metal with non-metallic windings are continually wound until the required outer diameter is attained.
The spiral wound gasket is commonly used with flange surface finishes created using Mirage flange-facing machines. These gaskets used in the oil, gas, and petrochemical industries are engineered to cope with high pressures, extreme temperatures, and chemical attacks. Fluctuations in the above, along with temperature differential across the flange face and bolt stress relaxation, demand a gasket with flexibility and recovery. The need for the gasket to recover from changing conditions cannot be overemphasized.
Spiral wound gaskets (SPW Gaskets) can be used over the complete temperature range from cryogenic to approximately 2000°F and in all pressures from vacuum to the standard 2500 psi flange ratings, They are more resilient than any other type of metallic gasket with higher flexibility and recovery characteristics to maintain a seal under variable working conditions.
Also on the gasket, is a solid outer ring used for centering and controlling compression. This minimizes the risk of material creeps through over-tightening. For the toughest conditions, spiral wound gaskets are available with an additional inner ring. This protects the windings (particularly the filler), from contamination, or attack by the product traveling past the pipeline joint.
QSW1
The QSW1 Q-Ger Spiral Wound gasket has no metal ring. This style is suitable for tongue and groove face connection and sometimes for male and female face connection but not suitable for ordinary pipe flange of raised face. This style is commonly used for valve bonnet, pressure vessels, etc.
QSW2
The QSW 2 Q-Ger Spiral Wound gasket has a metal inner ring. As inner ring works as reinforcement to prevent internal extrusion or inward buckling of gasket windings caused by compression, this style is suitable for male and female face connection but not suitable for ordinary pipe flange of raised face.
QSW3
The QSW 3 Q-Ger Spiral Wound gasket is with outer metal ring. Outer ring works as 1) centring a gasket properly between the flanges, 2) limiting bolt load at proper compression, 3) preventing external expansion by compression. For PTFE filler gasket, this style is basically not recommended due to the possibility of inward buckling during compression. This style is most common for ordinary pipe flange of raised face.
QSW4
