Type FFZT
Single Cartridge O-ring Seal
Designed to Reduce Installation Time and Errors
The compactness of Type FFZT cartridge seals ensures they will fit all ANSI and DIN stuffing boxes and offers an ideal upgrade from packing. The Type FFZT is a robust cartridge seal used for various duties from chemicals to oil and water and many abrasive and crystallizing duties. It is ideal for top-entry mixers, where the liquid product may not provide continuous cooling and lubrication of the seal faces. Premium seal face materials ensure low heat generation and dry-running thermal stability. For top-entry agitators, a design variation is available for use in hygienic applications.
The Type FFZT is a variant of the Type FFET, using common, replaceable face inserts.
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Features
- California Residents: PROPOSITION 65 WARNING
- Heavy-duty silicon carbide seal faces resist abrasion from slurries for a longer operating life
- Common face design used for both primary and mating rings
- Common face design used across FFZL/R and FFZT ranges
- Non-clogging single, stationary spring is resistant to chemical attacks, permits high-speed operation to 6000 rpm and handles minor misalignment between the motor and pump shaft
- Simple maintenance and repair
- Use of large section heavy duty components resists damage in aggressive environments
- Diamond face technology for industrial applications – adding John Crane Diamond® to mechanical seal faces helps overcome short seal life and equipment breakdowns caused by harsh operating conditions
Parameters
- Seal Size
- 20 mm to 100 mm
- Shaft Size
- 14 mm to 90 mm
- Temperatures
- -50 °C to 260 °C (-58 °F to 550 °F)
- Pressures
- Up to 70 bar g / 1000 psig
- Speed
- Up to 6000 rpm
- Fluid Kinematic Viscosity
- >1000 Centistokes (cSt.)
Recommended Applications
- The origins of the FF seals were in sealing cement paste, and its design makes it ideal for ‘dirty’ applications across all market sectors
- High percentage by weight slurries
- Pulp and paper
- Crystallising fluids
- Fibrous liquids
- Abrasives
- Produced water
