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MECHANICAL SEALS
Nippon Pillar has provided various types of mechanical seals with secure high gas-tightness
since 1951 when the Company first developed a mechanical seal to prevent the leakage of hazardous fluids. These mechanical seals are applied in a wide range of industries, including petroleum refining, chemical, paper milling, steelmaking, water supply and sewerage, food processing and ship building. Nippon Pillar's mechanical seals are fully compliant with JIS and ISO standards and deliver a stable performance even under the harshest operating conditions. |
POWER PLANT
| Type GAKQM |
Cassette Seal (Outside type) |
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Features & Benefits |
| This is cassette type seal providing easy installation.
Replacement from gland packing is not required any modification such as ISO and DIN standard pumps.
The use of SiC having high degree of hardness allows for use with liquid containing solid particles.
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| Performance |
| Pressure: 0.8MPa Temperature:-20~150℃
Size: 20~100
Application: Oil, Water (max solid particles concentration: 5wt%)
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Type GAKQM  |
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| Type AAB |
Rotating multi-spring seal |
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Features & Benefits |
For General application
This type is widely used for wide application in many industries. |
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Performance |
Pressure: 3.43MPa, Velocity: 20m/s, Nom.size: <:>20-250
Application: General pumps |
| Code: MS-AAB30-KEBOO - (Size), Tungsten Carbide (SiC) vs. Carbon & Fluoro Elastomer, 316 SS |
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| Type QBS |
Welded metal bellows seal |
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Features & Benefits |
For High Temperature
This type is stationaly type using welded double metal bellows which has superior pressure resistance.
This has no stick-slip and superior heat resistance as no shaft packing is employed. |
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Performance |
Pressure: 3.0MPa, Velocity: 60m/s, Nom.size: $23-136
Application: Oil feed pump, Fuel transfer pump |
| Code: MS-QBS20-PXKOO - (Size), Tungsten Carbide (SiC) vs. Premium carbon & Fluoro Elastomer, 316 SS |
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| Type JAB |
Stationary floating ring seal (For heavy duty) |
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Features & Benefits |
For High load Application
This type is widely used for high speed, high pressure and big pressure fluctuation.Carbon floating ring can accommodate big pressure fluctuation owing to its symmetrical shape. The pump fluid can be flushed effectively through lots of holes on this ring to dissipate the heat generated on the faces. |
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Performance |
Pressure: 10.0MPa, Velocity: 80m/s, Nom.size: <:>50-250
Application: Boiler feed pump, Main pump for nuclear power plant |
| Code: MS-JAB25-R- (Size), Tungsten Carbide (SiC) vs. Premium carbon & Fluoro Elastomer, 316 SS |
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| Type 6521L |
Carbonized fiber packing |
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Features & Benefits |
For General Pump
This is made of carbonized fiber impregnated with PTFE dispersion, and lattice braided with special lubricant. This has much enhanced performance than our popular type 6501l. This packing can accommodate big pressure fluctuation, so can be used widely in rotating/reciprocating equipment. |
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Performance |
Temperature: 200'C, Pressure: 1.2MPa, Velocity: 20m/s,
PV value: 9.8MPa-m/s
Application: Sea water pump
"'Cooling is required for liquid over BO"C |
| Code: GP-6521 L- (Size) |
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