ANFD Double Seal: FDD-500BB
ANFD Double Seal: FDD-500BB
HydroMax Seal FDD-500BB | Double Cartridge Seal for ANFD Applications
The FDD-500BB is a multi-spring double cartridge seal with hydraulically balanced seal faces. The “500BB” design features an integral bearing, metal bellows, and 316 stainless steel wetted parts.
This Rotary Pusher Double Cartridge Seal includes monolithic seal faces, an integral bearing, and O-ring secondary seals, designed specifically for Agitated Nutsche Filter Dryers (ANFDs).
The mechanical seal incorporates multi-springs, a set screw drive, and quench and drain port connections. It accommodates significant axial shaft movement using a specially engineered inboard metal bellows.
The seal has a number of design features, comes factory assembled and tested, and has been successfully installed in hundreds of applications.
Product Description
Technical Specifications
- Seal Shaft Sizes:
30mm – 200mm (further sizes can be designed as required) - Inboard Seal Face Combination:
Car/TC, Car/SiC, SiC/SiC - Outboard Seal Face Combination:
Car/TC, Car/SiC - Gasket:
GFT / Graphite - Bellows:
316 Stainless Steel (Length to suit ANFD paddle movement) - Inboard Wetted Parts:
316 Stainless Steel - Elastomers:
Viton, ERP, Aflas, Kalrez - Shaft Speeds:
up to 10 m/s - Pressures:
up to 6 barg (90 psig) – Shaft Size Specific - Temperatures:
up to 200°C (392°F)
Supply Options
- 316 Stainless Steel, Hastelloy, or Exotic Alloy wetted parts
- Plan 52/53 Seal Support System with cooling coil and finned tubing
- Plan 54 Seal Support System (forced barrier fluid circulation for high heat removal)
WARNING:
The safe seal performance characteristics are typical values for each variable in isolation. The individual upper limit values of speed, pressure, and temperature should NOT be used in combination.
