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Joint sheet

CLINSIL™ Top

TOMBO™ No. 1120

Expanded graphite is its main material, and so it has excellent heat resistance, steam resistance, and corrosion resistance.
It is not susceptible to scratches and has excellent flexibility.
It is used for flanges, valves, and equipment in comparatively hot temperatures.
For low-temperature fluids such as liquefied natural gas (LNG), Nichias recommends TOMBO No.1120-LN, which undergoes special treatment.

Joint sheet

CLINSIL™ Brown

TOMBO™ No. 1995

It is a standard grade joint sheet.
Nichias can manufacture large-diameter gaskets without joints at a maximum size of 3810 × 3810 mm (9S size).
It is used for flanges, valves, and equipment in comparatively low temperatures.

Joint sheet

CLINSIL™ Super

TOMBO™ No. 1993

It has excellent heat resistance and steam resistance and is suitable for steam lines.

Fluoropolymer gasket

CLINSIL™ Clean

TOMBO™ No. 1133

It can be used for a wide range of fluids such as acids, alkalis, oils, petrochemicals, organic solvents, hot oils, heat-transfer gases, and steam. (Except for some strong alkalis and acids.)
It has the best heat resistance among fluororesin gaskets.
It can also be used for parts that need electrical insulation.

Special filler filled PTFE cut gasket (low creep)

NAFLON™ LC GASKET

TOMBO™ No. 9007-LC

NAFLON LC GASKET has excellent chemical resistance and anti-staining properties, and is used as a gasket material in a wide range of industries such as fine chemicals, petrochemical industry, pharmaceuticals, food industry, and semiconductor industry.

Corrugated metal gasket bonded with expanded graphite

CMGC GASKET

TOMBO™ No. 1880-GR

It is a gasket that, by adopting a corrugated design, concentrates the surface pressure and improves the sealing performance.
It can also be machined into unique shapes such as frames and flat faces.
It is used for uniquely shaped flanges, valve bonnets, and heat exchangers, and has also been used at many overseas oil companies.
The performance hardly drops from low temperatures to high temperatures (400°C).
It can be used for almost all fluids, except for strong oxidizing acids.

Spiral wound gaskets with expanded graphite filler (for low temperatures and low surface pressure sealant)

VORTEX™ GASKET

TOMBO™ No. 1839R

It is a gasket with a large amount of filler outside the sealed surface and that enables a seal with less clamping force than regular GRASEAL™ and VORTEX™ gaskets.
It can also be used for low-temperature production lines such as liquefied natural gas (LNG), liquid nitrogen (LN2), and liquefied air.

Spiral wound gasket with expanded graphite filler

VORTEX™ GASKET

TOMBO™ No. 1804-GR

It demonstrates excellent sealing performance even in strict conditions such as high temperatures and high pressures, ultra-low temperatures, and thermal cycles.
It offers better sealing performance than NA VORTEX GASKET (particularly sealing against gas).
As it has excellent corrosion resistance, it can be used for corrosive fluids if you choose an appropriate hoop material.
It has excellent sealing performance at low-temperature conditions.
It is a gasket that is particularly suitable for high-temperature and high-pressure steam applications such as pipe flanges, valves, pressure containers, heat exchangers, and valve bonnets of various industries, as well as low-temperature applications like liquefied natural gas (LNG).

Spiral wound gasket with NA paper filler

VORTEX™ GASKET

TOMBO™ No. 1804-NA

A cost-effective VORTEX GASKET that uses NA paper as a filler.
It is suitable for parts where you want to avoid black filler.
It is used for pipe flanges, pressure containers, heat exchangers, and valve bonnets of various industries.

Spiral wound gasket with composite filler for high-temperature use

VORTEX™ GASKET

TOMBO™ No. 1806-GS

The VORTEX GASKET is a gasket that can be used in high-temperature conditions of 450°C or more by combining expansion graphite (GRASEAL) tape, which mixes antioxidant with filler material, with an oxygen barrier (mica layer) to prevent the GRASEAL oxidizing at high temperatures.
It is suitable for parts where oxygen is not included in the internal fluid.

Spiral wound gasket with composite filler for high-temperature use

VORTEX™ GASKET

TOMBO™ No. 1806-GM

The VORTEX GASKET is a gasket that can be used in high-temperature conditions of 450°C or more by combining expansion graphite (GRASEAL) tape, which mixes antioxidant with filler material, with an oxygen barrier (mica layer) to prevent the GRASEAL oxidizing at high temperatures.
If the working temperature is 450°C or less, Nichias recommends a regular VORTEX gasket.

Spiral wound gasket with composite filler for high-temperature use

VORTEX™ GASKET

TOMBO™ No. 1806-GH

The VORTEX GASKET is a gasket that can be used in high-temperature conditions of 450°C or more by combining expansion graphite (GRASEAL) tape, which mixes antioxidant with filler material, with an oxygen barrier (mica layer) to prevent the GRASEAL oxidizing at high temperatures.
It is suitable for high-temperature conditions of 650°C or more.