VORTEX™ GASKET

TOMBO™ No. 9090

Because it uses PTFE with excellent chemical resistance as a filler, it can be used for almost all fluids if you choose an appropriate hoop material.
It is one of the best VORTEX gaskets in terms of sealing performance, and it can also be used for vacuum applications.
It is used for pipe flanges, pressure containers, heat exchanges, and valve bonnets from various industries. It is suitable for sealing against corrosive fluids and oxygen that other VORTEX products cannot be used for, parts that especially require airtightness, and vacuum sealing.
For applications using pure liquid oxygen, Nichias also offers an OX type that removes PTFE oil components.

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.

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.

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.

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.

VORTEX™ gasket ‒NM (Basic Type)

TOMBO™ No. 1808-NM

It is a new gasket that can be used even in areas over 450°C by using high-temperature fillers developed by our company.
Almost no loss of filler by oxidation is observed at high temperatures and stable sealability is maintained for a long time.
In addition, fluids that oxidize and dissipate expanded graphite such as molten salts can also be used without issues.

KAMMPROFILE GASKET

TOMBO™ No. 1891-GR

It can be used under strict thermal cycle conditions, and as the load is concentrated on the serrated edges, it also demonstrates excellent sealing performance at low clamping forces.
An inner ring to prevent buckling is not needed and so it can be designed to have a narrow gasket width.
It will not come loose even when used for large diameters.
It is suitable for parts where the width of the equipment, such as heat exchangers and pressure containers, and flange seats is narrow and a VORTEX GASKET cannot be used.

METAL JACKETED GASKET

TOMBO™ No. 1841

It is possible to manufacture various shapes, such as those with branches, to suit the application and where the product will be installed.
It is used for heat exchanges, pressure containers, tower tanks, equipment, valves, high-temperature joint flanges, manholes, etc.

METAL JACKETED GASKET

TOMBO™ No. 1841-FI

It is possible to manufacture various shapes, such as those with branches, to suit the application and where the product will be installed.
As it is made of a heat-resistant core material, it is used for high-temperature heat exchangers, pressure containers, tower tanks, equipment, valves, joint flanges, manholes, etc.

METAL JACKETED GASKET

TOMBO™ No. 1861

It is possible to manufacture various shapes, such as those with branches, to suit the application and where the product will be installed.
It is used for heat exchanges, pressure containers, tower tanks, equipment, valves, high-temperature joint flanges, manholes, etc.

METAL JACKETED GASKET

TOMBO™ No. 1861-FI

It is possible to manufacture various shapes, such as those with branches, to suit the application and where the product will be installed.
As it is made of a heat-resistant cushioning material, it is used for high-temperature heat exchangers, pressure containers, tower tanks, equipment, valves, joint flanges, manholes, etc.

OCT RING JOINT GASKET

TOMBO™ No. 1850C

The Ring Joint Gasket is a gasket processed into specific shapes by machining cast metal materials. It is used for high-temperature, high-pressure pipe flanges, valves, pressure containers, and heat exchangers.
OCT RING JOINT GASKET is a gasket that offers sealing properties by having the sealed surface and the flange grooves engage in surface-to-surface contact. If carrying out sliding work, the gasket can be reused (providing the sealed surface is in good condition).