Expanded graphite gasket
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.
Expanded graphite gasket
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.
Expanded graphite gasket
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.)
Expanded graphite gasket
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.
Cloth gasket
SUPER MANHOLE GASKET
TOMBO™ No. 1420-ST
It is a gasket in which woven fabric is coated in a rubber compound and sewn together into a manhole shape.
Cloth gasket
SUPER MANHOLE GASKET
TOMBO™ No. 1420-S
It is a gasket in which a cloth made of alkali earth silicate wool (AES) is coated in a rubber compound and sewn together into a manhole shape.
Cloth gasket
SUPER MANHOLE GASKET
TOMBO™ No. 1420-TH
It is a gasket in which woven fabric is coated in a rubber compound and sewn together into a manhole shape.
Cloth gasket
SUPER MANHOLE GASKET
TOMBO™ No. 1400-NA
It is a gasket in which woven fabric is coated in a rubber compound and sewn together into a manhole shape.
This product is suitable for exhaust gas and hot air manholes, handholes, autoclaves, large-diameter flanges, diesel engine exhaust pipes, flue manholes, and boiler combustion openings.
Cloth gasket
NA MANHOLE GASKET
TOMBO™ No. 1374
A gasket in which a glass fiber cloth is coated in a rubber compound and sewn together into a manhole shape.
This product is suitable for exhaust gas and hot air manholes, handholes, autoclaves, large-diameter flanges, diesel engine exhaust pipes, flue manholes, and boiler combustion openings.
Cloth gasket
NA TADPOLE GASKET
TOMBO™ No. 1378
TOMBO No.1368 is a gasket that is machined into a ring shape and is suitable for the doors of furnaces, heaters, and dryers, as well as dampers and exhaust gas, hot air, and dust manholes.
Cloth gasket
NA MANHOLE GASKET
TOMBO™ No. 1374/13781420-ST/-S/-TH/1400-NA9094
An endless gasket in which woven fabric is coated in a rubber compound and sewn together into various manhole shapes. This gasket has insufficient airtightness, so use it only for parts where some slight leakage is permitted.
It is best suited for applications in which the flange diameter is large, there is distortion, or a high clamping surface pressure will not occur.
Valve packing
GRASEAL™ PACKING
TOMBO™ No. 2200
By using it in combination with adapter packing such as TOMBO No.2250-A, it delivers outstanding sealing performance.
The drop in performance from ultra-low temperatures to high temperatures is minimal.
Expanded graphite (GRASEAL) has chemical resistance second only to PTFE and can be used for almost any fluid, except for the prohibited fluids below.
It has little stress relaxation and so it demonstrates stable sealing performance over the long term.
