Features1

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

Features2

A gasket with an inner ring is used for a male-female flange. The inner ring not only reinforces the gasket but also decreases the clearance between the pipe's inner diameter and the gasket, as well as preventing accumulation of fluids and errosion of corner areas. Please use a product with an inner ring if the pressure rating of the flange is Class 900 (JIS 63K) or greater, or if the nominal diameter of the flange is 650A (26B) or greater.

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

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.