80U/CG and 85U/CG

Compact Cartridge Unbalanced Seal, Single Acting, Independent of Direction of Rotation 
Seal series 80U/CG & 85U/CG 
Standard Style
Face Materials
Rotary:- Carbon, Silicone Carbide, Tungsten Carbide, Ceramic (99.5%) 
Stationary:- Silicone Carbide, Tungsten Carbide, Cast chrome steel, Ceramic (99.5%)

Metal Parts

AISI 316
Alloy-20, Monel 

Secondary Seals

bullet   Elastomers, PTFE 


bullet   Petrochemicals
bullet   Petroleum refinery
bullet   Chemical Process Pumps
bullet   Light hydrocarbons 

Seal Characteristics

bullet   Single acting
bullet   Inside mounted
bullet   Independent of direction of rotation
bullet   Unbalanced
bullet   Cartridge unit
Operating Limits
Shaft Diameterd1:  20…95 mm 
Pressure pp:  10 bar 
Temperaturet:  -20 … +180 o C 
Velocityv:  20 m/s. 

Series 80U/CG & 85U/CG are cartridge multiple spring-unbalance seal with O-Ring as secondary sealing member in series 80U/CG & wedge as a sealing member in 85U/CG. Various face material & elastomers can be offer for wide service application. The compact cartridge design of seal permits their use in all types of centrifugal pump. As all parts are interchangeable, one can convert series 80U/CG to series 85U/CG by changing only seal ring, secondary packing and mating ring packing. This concept is ideal for stock rationalisation.


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