Metal jacket gaskets are used for various high temperature lines such as power plants, boilers, engines, chemical plants, petrochemical
plants and others because of its high sealing performance. But asbestos is prohibited to use now in many countries.
NAPI(R) is made of zero-asbestos material. So NAPI has both high performance gasket function and environmental
friendly function.
Why is NAPI safety packing?
NAPI(R) use fine zero-asbestos material "ZERO-AS BOARD(R)"
not non-asbests material for inner material.
"ZERO-AS BOARD(R)" is basically made from biosoluble inorganic fiber,
so the asbestos content ratio of "ZERO-AS BOARD(R)" is almost 0% !!
(less than 0.0001% by EPA method)
NAPI Metal Jacket Gasket
The characteristics of NAPI metal jacket type gasket
Copper Jacket
Stainless Steel Jacket
1.High sealing performance.
2.High performance of heat tolerance, pressure resistance and durability.
3.High cushioning characteristic by intensified bearing resistant strength.
4.JIS, ASME, JPI standard line up. JIS 5K, 10K, 16K(20K), 30K, 40K, 63K ASME/JPI Class150(G1,G2) 300(G1,G2)
JIS 5K, 10K, 16K(20K), 30K, 40K, 63K ASME/JPI Class150(G1,G2) 300(G1,G2)
5.Original shape gaskets are available.
NAPI metal jackets are used in various industrial fields
-For high temperature / high pressure steam line sealing
NAPI-600 or 800 series
-For diesel internal combustion engines (ships/vessels etc.)
Exhaust gasket, Head gasket, Supply and exhaust gasket for co-generator
For car and motorcycle engines
Copper packing, Head gasket
-For petroleum refining, petrochemistry, paper-manufacturing plants
Various gasket, RF type gasket, FF type gasket (JIS, ASME, JPI standard)
-For thermal power plant
Full face type gasket, Ring gasket (metal jacket type JIS, ASME, JPI standard)
-For high temperature plant such as incinerator, steel facilities
Full face type gasket, Ring gasket (metal jacket type JIS, ASME, JPI standard)
-For high temperature vacuum facility plants
Metal flat type gasket
Various Shape Gaskets can be acceptable!
Not only JIS/ASME standard shape but also other shape gasket can be produced.
We can produce customers original shape gasket!
NAPI Joint Sheet Gasket
The characteristics of NAPI Joint Sheet Gasket
1.High sealing performance. 0.0004 Pa m3/s (by "He" leak detector)
2.Up to 300 deg.C working temperature
3.Environmental/Human friendly material
The materiala of NAPI joint Sheet is BSF (Bio Soluble Fiber)
which meets EC 1272/2008 CLP/EC Note Q.
You don't worry about Asbestos problem!
NAPI-J55 (Normal)
NAPI-JSM (For High Temp.)
| Working Temperature (Deg. C) and Pressure |
|---|
| Model | NAPI-J55 | NAPI-JSM |
|---|
| Working Temp. | -50 to 230 Deg.C | -50 to 150 Deg.C | -50 to 300 Deg.C | -50 to 230 Deg.C |
|---|
| Working Press. | 2.0 Mpa | 4.0 Mpa | 2.0 Mpa | 4.0 Mpa |
|---|
| Fluid |
|---|
| Aqueous Fluid | Water, Sea water, Warm and hot water, Steam, Extra heated Steam, etc. |
|---|
| Oil Fluid | Crude oil, Naphtha, Alcohol, LPG, Ethylene glycol, Ethylene, Ammonia solvent, etc. |
|---|
| Line up (Full Face type Gasket) |
|---|
| Standard | JIS 5k, 10k, 16k / ASME Class150, 300 |
|---|
| Size | JIS 5K | 10mm to 1200mm |
|---|
| JIS 10K | 10mm to 1200mm |
| JIS 16K | 10mm to 600mm |
| ASME #150 | 1/2" to 48" |
| ASME #300 | 1/2" to 46" |
| * Ring type gasket is avairable |
