Mechanical Seals
Double Cartridge Seal
Dual cartridge seal assembly arranged in tandem or back-to-back with barrier fluid.
Advanced dual cartridge mechanical seal containing two pairs of sealing faces with an internal barrier fluid chamber. Designed for zero emissions on toxic, carcinogenic, abrasive, or crystallizing process fluids.
Product photo · Double Cartridge Seal
Specifications
Technical profile
- Configuration
- Double cartridge (Back-to-Back, Tandem, or Face-to-Face)
- Compliance
- API 682 Type A/B, Arrangement 2 or 3
- Shaft size
- 24 mm to 140 mm
- Face materials
- Inboard: SiC vs SiC / Outboard: SiC vs Carbon
- Barrier fluid
- Compatible with API Plan 52 (buffer) or Plan 53A/B/C (barrier)
- Pressure rating
- Up to 40 bar barrier pressure
- Temperature
- -40 °C to +260 °C
Specifications are typical and vary by variant. Share your duty conditions for an exact recommendation.
Key benefits
Why this product
- Zero process emissions to atmosphere — guarantees EPA and environmental compliance
- Barrier fluid lubricates and cools seal faces even if pump runs dry
- Handles up to 40% abrasive slurries without particles entering sealing interface
- Complete modular cartridge allows rapid changeout on critical reactor pumps
Applications
Typical industries
ChemicalOil & GasPharmaDye Manufacturing
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Need this double cartridge seal for your line?
Share your duty conditions and drawings — our team responds with a technical recommendation and a firm quote.