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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 API STANDARD 682 and ISO standards and deliver a stable performance even under the harshest operating conditions. |
OIL & GAS
| Type AAB |
Rotating multi-spring seal |
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Features & Benefits |
| The mechanical seal of this type is a typical balance seal of Pillar seals, used for any industries since olden times. It uses the standardized rotating seal to be compatible to the dimension, construction and application of equipment used, and used mulli-spring to demonstrate the stabilized performance in a wide range of application.This model is categorized in API682. Seal type A |
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Performance |
Pressure: 4.2MPa (610psi), Velocity: 20m/s, Nom.size: q,20-250
Application: Process pump, Mixer, Blower |
| SiC (Tungsten Carboide) vs Carbon & Flouro Elastomer, 316 SS |
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| Type WQR |
Rotating welded metal bellows Seal |
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Features & Benefits |
The bellows pack is a rotary type metal bellows seal that can be also attached to the pump compatible to ISO or OIN, and can provide the effect for countermeasure against operation
failure of shaft packing type. Since the inconel is used for bellows material, it can be applicable to a wide of fluid.This model is categorized in API682. Seal type B |
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Performance |
Pressure: 2.0MPa (290psi), Velocity: 25m/s, Nom.size: q,20-100
Application: Utility pump, Middle pressure pump |
| SiC vs Carbon & Flouro Elastomer. 316 SS |
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| Type QBS |
Welded metal bellows Seal |
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Features & Benefits |
| The mechanical seal of this type is a stationary type seal, using a double bellows of welded metal without no shaft packing, which provides the excellent resistance against pressure Since it provides the excellent follow-up performance and does not require any consideration for heat resistance limit of packing material, it is suitable to high-temperature use.This model is categorized in AP1682. Seal type C |
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Performance |
Pressure: 3.0MPa (435psl), Velocity: 60m/s, Nom.size: q,23-180
Application: High temperature liquid |
| SiC vs Carbon, 316 SS |
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| Type RRG.PPG |
Dry contact seal I dry gas seal |
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Features & Benefits |
These mechanical seal is used in tandem seal as containment seal.
RRG:This is a dry contact seal. The seal ring is grooved for reduction of load and is impregnated with special lubricant, it can assure the stable sealing performance for a long time.
PPG:This is a dry gas seal. The seal surface of rotating ring is uniquely grooved, to use the hydro dynamic pressure effectively by the multi-independent grooves.These arrangement are 2CW-CS in API682. |
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Performance |
Pressure: 0.1MPa (14.5psi), Velocity: 20m/s, Nom.size: q,20-130
Application: Process pump |
| SiC vs. Premium Carbon & Fluoro Elastomer, 316 SS |
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| Type Phoenix Seal @ |
Non-Contact dry gas seal |
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Features & Benefits |
Bi-directional type non-contact dry gas seal.
Multi-independent hydrodynamic pressure distribution generated by multiindependent grooves gives more stable seal performance.
(US 5664748, 5529318 EU Pending) |
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Performance |
Pressure: 10MPa (1450psi), Velocity: 150m/s, Nom.size: .p50-200
Application: Turbine, Blower, Compressor |
| Carbon vs Sic & Fluoro Elastomer, 316 SS |
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