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Mechanical Seal Manufacturers in Mumbai, India | Cosmos Seals
Mechanical Seal Manufacturers in Mumbai, India | Cosmos Seals

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Double Catridge

Product Code: DC20   Mechanical Seal

DESCRIPTION

Double cartridge seals are pre-assembled, factory-tested dual sealing units that offer maximum reliability, safety, and performance for critical process applications. These seals are used where zero leakage, environmental compliance, or hazardous fluid containment is essential. They consist of two sets of seal faces (inner and outer), usually used in tandem, back-to-back, or face-to-face arrangements, with a buffer or barrier fluid circulating between them.

FEATURES
  • Pre-assembled dual seal cartridge – plug-and-play
  • Independent of direction of rotation
  • Balanced design for high-pressure handling
  • Integrated gland, sleeve, and rotary unit
  • Designed for use with thermosiphon/barrier fluid systems
  • Available in tandem (Plan 52) or double (Plan 53A/B
ADVANTAGES
  • No setting measurements required – easy installation
  • Suitable for hazardous, toxic, or abrasive media
  • Maximum sealing reliability under extreme conditions
  • Reduced downtime and maintenance cost
  • Protects product and prevents atmospheric contamination
  • Compliant with API 682 and other industry standards
Double Cartridge Mechanical Seals | Cosmos Seals
SEAL FACE MATERIAL
  • Carbon vs. Silicon Carbide
  • Silicon Carbide vs. Silicon Carbide
  • Tungsten Carbide vs. Ceramic
ELASTOMERS
  • FKM / EPDM / FFKM / PTFE (encapsulated or O-ring style)
METAL PARTS DETAIL
  • SS 316 / SS 316L / Hastelloy C / Alloy 20 / Duplex stainless steel
Applications Details
  • Petrochemical reactors
  • Slurry handling pumps
  • Pharma and biotech agitators
  • Food and dairy vessels
  • API and solvent-based chemical transfer
  • Hazardous chemical dosing systems
AVAILABLE CONFIGURATIONS
  • Tandem seal (Plan 52 – buffer fluid)
  • Double seal (Plan 53A/B – barrier fluid)
  • Quench & drain ports as standard
  • Cooling jacketed gland (optional)
Parameter Standard Value / Range
Diameter 25 mm to 75 mm (custom sizes available)
Max.Pres Upto 20 bar
Barrier.Pres 1.5 to 3 bar above process pressure
Temp. Range -20°C to +180°C
Velocity 20 m/s
Media Abrasive, corrosive, flammable, or sterile media
Double Cartridge Mechanical Seals Drawing | Cosmos Seals class=