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AR-8B2

AR-8B2

ARMSTRONG® Pump Seal
TNG® Seal Type
AR-8B2 can be used in ARMSTRONG® Pumps
4300 series Pump.
To suit BELL&GOSSETT-Series 880-SC
Type AR8B2 series mechanical seal with balanced
and mutiple-spring characteristic. Adopt vertical
installation, suitable for vertical pipeline pump
of hot water system.
Detail Information
Features
ARMSTRONG® Pump Types
TNG® Seal Type AR-8B2 can be used in ARMSTRONG® Pump 4300 series pump
For more information, please do not hesitate to contact our Technology department
Combination Materials
 1. Rotary Face 
     Carbon graphite, resin impreg  Ak
      Carbon graphite,antimony impreg  AD           
 2. Stationary Seat  
     Reaction Bonded Sic RBSIC  O
     Sintered Silicon Carbide SSlC  O1         
 3. Auxiliary Seal
     FPM
     AFLAS     
 4. Spring
     GrNi-Steel (AlS1304)  F
     GrNiMo-Steel (AlS13 16)  G            
 5. Metal Parts
     GrNi-Steel (AlS1304)  F
     GrNiMo-Steel (AlS13 16)  G


OPERATING LIMITS
Pressure: P=0~2.5MPa ( 362.5psi )
Temperature:t=-20°C~180°C ( -4°F to 356°F )
Sliding velocity : n≤3600 rpm
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