Standard Cartridge Seals – ISC2-682
About this product
The ISC2-682 Series is a family of balanced pusher and metal bellows seals designed to fully comply with the design and qualification requirements of API 682. Platform flexibility allows application in a range of services throughout refineries, petrochemical plants and other industries where the API 682 specification is invoked. ISC2-682 seals are fully compliant with API 682, Type A and Type B requirements.
Features and Benefits
- Qualified for Category 1 ASME B73.1 and Category 2 API 610 pumps per API 682 design and test criteria.
- Multiple coil springs in Type A pusher seals are non-wetted and non-rotating for excellent clogging resistance under imperfect equipment alignment conditions.
- Edge-welded metal bellows in Type B seals rotate with the shaft for a self-cleaning effect that helps prevent accumulation of debris.
- Thermal management technology enhances seal face heat transfer, reduces seal face temperatures and increases tolerance to dry running events.
- Hydraulically retained and double balanced seal faces in all versions allow continued operation during unintended reverse pressurization.
- Circulating device integrated into the dual seal cartridge circulates barrier fluid to keep the seal faces cool. A circulating device is also available on single
seals for fluids over 75°C (167°F). - Available multiport flush distributes flush fluid evenly around the seal faces to eliminate temperature gradients and improve seal face flatness.
- Gland throttle bushings are available in fixed, floating, and segmented varieties to provide secondary
containment in single seal arrangements.
Specifications
- Metal Parts:
- 316 Stainless Steel
- Alloy C-276
- Mating Ring:
- Direct Sintered Silicon
- Carbide
- Primary Ring:
- Resin Grade Carbon
- Direct Sintered Silicon Carbide
- Metal Bellows:
- Alloy C-276
- Elastomers:
- Fluoroelastomer
- Perfluoroelastomer
- EPDM
- TFE-Propylene
- Springs:
- Alloy C-276
- Pressure:
- up to 21 bar (300 psi)
- up to 14 bar (200 psi)
- Temperature:
- -40 to 204°C
- Speed:
- up to 23 m/s (75 fps)
- Specific Gravity:
- > 0.6
- Shaft Size:
- 25.40 to 203.2 mm (1.000 to 8.000″) – Pusher
- 25.40 to 95.25 mm (1.000 to 3.750″) – Bellows
Configurations
- ISC2-682PX – Single Pusher
- ISC2-682PP – Dual Pusher
- ISC2-682BB – Dual Bellows
- ISC2-682BX – Single Bellows
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