Key Features & Advantages:

• Spiral wound gasket using VALQUAFOIL tape applied as filler material
• The basic-shape gasket is used for male-female and tongue and groove flanges, bonnets of valves, as well as covers for pressure vassels, towers, and tanks. It only requires a narrow width, and safe for use under high pressure.
• Excellent airtightness greatly improves sealing performance against gas in general and vacuum.
• Excellent response to heat and pressure cycles reduces the frequency of retightening.
• They also have excellent radiation resistance (products complying nuclear power specifications are available).

Typical Plant Applications:

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.

Key Features & Advantages:

• Version of Spiral wound gasket using VALQUAFOIL tape applied as filler material with outer ring
• The circumferance of the outer ring of a gasket with an outer ring inscribes the bolt of the flange, making gasket centering easy. This ring is also useful as a guide for adjusting the amount of reinforcement and tightening of the gasket. For use with a raised face flange, No. 6596 (with inner and outer rings) is recommended, as deformation of the inner diameter of the gasket is possible. Please use a product with inner and outer rings 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.
• Excellent airtightness greatly improves sealing performance against gas in general and vacuum.
• Excellent response to heat and pressure cycles reduces the frequency of retightening.
• They also have excellent radiation resistance (products complying nuclear power specifications are available).

Typical Plant Applications:

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.

Key Features & Advantages:

• Version of Spiral wound gasket using VALQUAFOIL tape applied as filler material with inner ring
• 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.
• Excellent airtightness greatly improves sealing performance against gas in general and vacuum.
• Excellent response to heat and pressure cycles reduces the frequency of retightening.
• They also have excellent radiation resistance (products complying nuclear power specifications are available).

Typical Plant Applications:

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.

Key Features & Advantages:

• Version of Spiral wound gasket using VALQUAFOIL tape applied as filler material with inner ring and outer ring
• 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.
• Excellent airtightness greatly improves sealing performance against gas in general and vacuum.
• Excellent response to heat and pressure cycles reduces the frequency of retightening.
• They also have excellent radiation resistance (products complying nuclear power specifications are available).

Typical Plant Applications:

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.