ANFD Exotic Alloy Seal: FDD-550BB
ANFD Exotic Alloy Seal: FDD-550BB
ANFD Exotic Alloy Seal: FDD-550BB
ANFD Exotic Alloy Seal: FDD-550BB
ANFD Exotic Alloy Seal: FDD-550BB

ANFD Exotic Alloy Seal: FDD-550BB

The FDD-550BB is an Exotic Alloy multi-spring double cartridge seal with hydraulically balanced seal faces. The "550BB" model comes with an integral bearing, metal bellows and Hastelloy wetted parts.

The Rotary Pusher Double Cartridge Seal, has Monolithic seal faces, an Integral Bearing and O-Ring secondary seals and is used for Agitated Nutsche Filter Dryers (ANFD's) applications.

The mechanical seal comes with Multi-Springs, Set Screw Drive and Quench and Drain port connections.

The FDD-550BB accommodates large amounts of axial shaft movement by using a special inboard metal bellows design. The length of the metal bellows is designed to suit the ANFD paddle/agitator vertical movement.

The seal has a number of design features, comes factory assembled and tested and has been successfully installed in hundreds of applications.

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Supply/Design Characteristics
Seal Shaft Sizes
30mm - 200mm (further sizes can be designed as required)
System Vessel Size
Inboard Seal Face Combination
Car/TC, Car/SiC, SiC/SiC
Outboard Seal Face Combination
Car/TC, Car/SiC
Gasket
GFT / Graphite
Secondary Sealing
Bellows
Hastelloy (Length to suit ANFD paddle movement)
Inboard Wetted Parts
Hastelloy
Elastomers
Viton, ERP, Aflas, Kalrez
Shaft Speeds
up to 10m/s
Pressures
up to 6 barg (90 psig) - Shaft Size Specific
Instrumention
Pipework & Fittings
Temperatures
up to 200 deg C (392 deg 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 characteristics for each variable in isolation. The individual upper limit values of each variable should NOT be used in multiple combinations of Speed, Pressure and Temperature.

Contact our Technical Sales Department for further details.