Features1

Version of Spiral wound gasket using VALQUAFOIL tape applied as filler material with inner ring and outer ring

Features2

The outer ring of the gasket with an outer and inner rings is useful as a guide for adjusting the amount of reinforcement and tightening of the gasket, making gasket centering easy. In addition, use of an inner ring prevents the inner diameter of this gasket from deformation even if the gasket is tightened too much. For this reason, gaskets with inner and outer rings are the most reliable high-temperature/high-pressure gaskets that can be mounted on raised face flanges.

Features3

Excellent airtightness greatly improves sealing performance against gas in general and vacuum.

Features4

Excellent response to heat and pressure cycles reduces the frequency of retightening.

Features5

They also have excellent radiation resistance (products complying nuclear power specifications are available).

Applicable fluids

Water, Sea water, Hot water, Steam,Crude oil, Alcohol, Animal & vegetable oil, Heat transfer oil,General solvent, Weak acid, Weak alkali,Strong oxidizing acid, strong alkali,Air, Nitrogen gas, Inert gas,Exhaust gas,Inflammable gas,Poisonous,Extremely low temperature liquids,

Inappropriate fluid

Oxidizing acids such as hot, concentrated sulfuric acid, concentrated nitric acid and oxygen.

Application

In particular best suited as gaskets for use handling high temperature & high pressure steam (except HTS), as well as very low temperature fluids such as LNG, liquid nitrogen and liquid hydrogen.