• CL99PR
  • CL99PR
  • CL99PR
  • CL99PR



☑ Single Cartridge Seal
☑ Isolated Springs
☑ Boiler Feed Water Pump (BFW Pump)
☑ High Temp.
Model : CarLife 99PR Single Mechanical Seal

CarLife® 99PR is a high-flow circulation pump seal designed specifically for high-temperature processes exceeding 80℃. When equipped with a dedicated heat exchanger (WCHE) and a throat bushing on the process side, and utilizing the API Piping Plan23, it provides superior heat dissipation. 

CarLife® 99PR is the ideal sealing solution for boiler feed water pumps (BFW Pump) and is commonly employed in high-temperature or volatile processes such as hot water, thermal oil, and chemical solvents, including applications in power plants.

※ More Customized Sealing Solution. Please feel free to contact us.

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【Operating Capabilities】

  • Temperature: -40 ~ 230°C (-40 ~ 446 °F )
  • Pressure: Up to 300 psig (21 kg/cm2G)
  • Surface Speed: Up to 5000 fpm (25 m/s)

【Standard Materials】
  • Stationary Ring:Carbon Graphite / Silicon Carbide / Tungsten Carbide
  • Rotary Ring:Silicon Carbide / Tungsten Carbide
  • Metal Parts:316 SS / 304 SS / 316L SS / 316Ti SS / Duplex Stainless / Alloy C-276 / Titanium / Monel®
  • Elastomeric O-rings:FKM / AFLAS / NBR / EPDM / TV / FFKM (SceniRAZTM / Chemraz® / Kalrez®)
  • Gland Gasket:Glass-Filled PTFE / Non- Asbestos / O-Ring
  • Springs:316 SS / Alloy C-276 / Inconel®
  • Recommended Piping Plans : Plan 23
  • The patented cartridge design features innovative drop-proof springs, thereby speeding installation and maintenance.
  • Our jumbo coil springs have better wear resistance than many other brands.
  • Balanced design for both pressure directions, promoting a higher level of sealing stability.
  • Flexible piping plans with a barrier/buffer fluid pressurized or unpressurized, depending on the application.
  • Robust construction with large runout capability.
  • Self-aligning compensates for shaft runout up to ±0.8 mm, increasing operational reliability.
  • Micro-polished outer surfaces of O-rings for anti-stick mounting.
  • Natural circulation heat exchanging design delivers bidirectional cooling flows at high flow rates, greatly extending MTBF (Mean Time Between Failures) because ofless heat.
  • Monolithic sealing faces with precise dimensions and excellent resistance to wear.
  • Low emissions design effectively contains VOC emissions.
  • Interchangeable inboard and outboard sealing faces.
  • Maximum interchangeability of parts among the CarLife® family.
  • Ability to tolerate short intermittent dry running in batch charging and discharging equipment.
  • Prevent hazardous emissions of acidic, caustic, corrosive, volatile and toxic media.
  • Withstand dry running involved with frequent starts and stops.
  • Suitable for a wide range of rotating equipment, such as chemical process pumps, vertical pumps, centrifugal pumps, vacuum pumps and eccentric screw pumps.
  • Widely used in the alcohol (e.g. methanol and ethanol), bio-diesel and corn processing industries.
  • Suited for a variety of industrial applications, including refining, petrochemical, chemical, food and beverage, pharmaceutical, pipeline transportation, power generation, steel, semiconductor, electronics, biotechnology, water resource, and wastewater treatment.