NICHIAS SOFT SEAL

TOMBO™ No. 9096

It is a soft gasket made of PTFE.
It is extremely soft, and the model with adhesive tape can easily be installed on sealed surfaces of complex shapes.
It is used for the likes of pipe sealant, tanks, casing, pressure containers, stress tanks, lining equipment, and large-diameter equipment.

GRASEAL™ GASKET

TOMBO™ No. 1200

It is more cost-effective than the other GRASEAL GASKET models.
As it is weaker and less workable than the steel sheet type, Nichias recommends using it only for nominal diameters of 4 inches or less.
It can be used for uniquely shaped flanges such as liquid level gauges, as well as various industrial pipe flanges, heat exchanges, and valve bonnets.

GRASEAL™ GASKET MI-A

TOMBO™ No. 1210-A

It is stronger than TOMBO No.1215-A due to its pronged steel plate.
Nichias recommends this product if TOMBO No.1215-A is not strong enough for you or if there are specification restrictions.

GRASEAL™ GASKET PM

TOMBO™ No. 1215

It has excellent workability and can be machined into complex shapes.
It is used for uniquely shaped flanges, valve bonnets, heat exchangers, etc.
Nichias also offers TOMBO No.1215-T, which has improved sealing performance against gas by undergoing treatment to make it impervious. (However, its maximum working temperature is 260°C.)

GRASEAL™ GASKET PM-A

TOMBO™ No. 1215-A

It has excellent workability and can be machined into complex shapes.
It is used for uniquely shaped flanges, valve bonnets, heat exchangers, etc.

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.

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

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).

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.

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.