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Style 72
Tandem Multi-Spring Inboard/Welded Bellows
Outboard Cartridge

• Cartridges for the critical, toxic and fugitive emission applications where single seals are • not acceptable.
• Rotating design
• Double balanced inboard face allows for reverse pressures in upset conditions.
• Tandem design maintains product and barrier fluid on O.D. of both seals for increased   safety and heat dissipation.
• Multi-spring design inboard.
• Springs are isolated from the product.
• Outboard bellows design allows for more efficient cooling of barrier fluid.

Style 74
Tandem Multi-Spring Inboard/Welded Bellows Outboard Cartridge with Pumping Ring

• Cartridges for the critical, toxic and fugitive emission applications where single seals are not acceptable.
• Tandem design maintains product and barrier fluid on O.D. of both seals for increased safety and heat dissipation.
• Rotating design.
• Double balanced inboard face allows for reverse pressures in upset conditions.
• Unique welded canister ensures positive torque transfer from shaft.
• Multi-spring design inboard.
• Smooth profile reduces product buildup in stuffing box.
• Springs are isolated from the product.
• Cartridge design assures easy installation.
• Pumping ring for improved cooling of barrier fluid.
• Hydraulically balanced design.
• Retained seal faces eliminate troublesome drive pins.
• Tangential connections maximizes flow of barrier fluid.
• Shrouded face design for added protection.
• Fits standard pumps without modification.
• Unique outboard bellows design eliminates hysteresis, allows for lighter face loads, minimizes heat generation and power consumption.
• Outboard bellows design allows for more efficient cooling of barrier fluid.
• Large inlet port and smaller outlet port enhances flow of barrier fluid.
• Repair kits available.