top of page
Dual Cartridge with Pumping Ring D2PR

Dual Cartridge with
Pumping Ring


Features & Benefits

  • Pumping ring standard

  • For critical, toxic and non-lubricating fluids

  • Stationary multiple spring cartridge design

  • Easy cartridge installation

  • Interchangeable components with S1 Single Cartridge

  • ANSI pump-compatible

  • Non-clogging in stuffing box

  • Springs protected from the product

  • Compensates for pressure reversals

  • Inboard silicon carbide vs silicon carbide faces combination is standard

  • User friendly setting clips

  • The industry’s only double cartridge seal with three identical monolithic silicon carbide faces

Standard Materials of Construction


  • INBOARD: Silicon Carbide/Silicon Carbide

  • OUTBOARD: Carbon/Silicon Carbide

  • Tungsten Carbide and Antimony Carbon available


  • Viton*, Buna, PTFE, Neoprene, EPR, Kalrez*, FEP, AFLAS*, Chemraz*


  • 316 SS, Alloy 20, Hast B+ C*

Operating Limits

• Pressure: Up to 250 PSI/17 Bar
• Temperature: -40° to 425° F, -40° to 235 ° Celsius*

D2PR drawing
D2PR connection
D2PR dimensions

*Registered Trademarks: Apex recognizes all trademark names as the property of their owners. 

Hastelloy® - Haynes / Viton® - DuPont / Kalrez® - DuPont / AFLAS® - ASHAI Glass / Chemraz® - Greene Tweed

bottom of page