The Cartex®-DN is the double seal variant in the Eagle Burgmann Cartex® range. Because the seal is double-balanced, it remains closed and balanced even in the event of barrier fluid pressure failure or pressure reversal. The seal has an integrated pumping device, so there is often no need for a separate barrier fluid circulation pump. A barrier fluid system (API Plan 53) is required in pressurized mode (barrier fluid pressure exceeds product pressure). Both seals are internally pressurized in this mode. In tandem operation, the (unpressurized) fluid is used in dead-end (API Plan 51) or flow-through (API Plan 52 or 54) mode, depending on the application. The inboard seal is externally pressurized. Over the past twenty years, Eagle Burgmann Cartex® Cartridge seals have demonstrated a proven track record in sealing applications on all standard pump types. This practical seal design has been successfully established in the market. The Cartex® range now includes single and double seal versions for all standard operating modes as well as special versions, for example for sterile applications or installation in positive displacement pumps. The below seals are Cartex ANSI Double seals; all with Carbon Graphite faces. Seals are offered in both Standard and Big Bore sizes. Two different O-ring elastomer materials are available for all sizes: FKM and FFKM. For any custom sizes or application specific requirements, please complete the ‘Can’t find your size or material’ form below.

Shaft Diameter (In.) : 1.875
Max Bore (In.) : 3.070
Bore Standard: Standard
Manufacturer Part # : 1000164054
O-Ring Material : FKM
Connection Size (In.) : 0.375