Mechanical Seals

Style SB1

Single Stationary Welded Metal Bellows Cartridge with Circulation Gland

• Part of Flex-A-Seal’s integrated/platform single cartridge seal design;
• Patent pending Plunger-Lock drive;
• Easy cartridge installation;
• Sleeve is isolated from product;
• Stationary bellows design - maximizes face alignment;
• Hydraulically balanced design;
• Even face loading;
• No dynamic elastomers;
• Only two static O-rings – cost savings are substantial when perfluorelastomer are required;
• Flush position maximizes face cooling;
• Shrouded rotary seal ring for maximum face protection and reliable start-up;
• Uniform 360° transfer of torque to the primary rotating face;
• No pins to break or hang up;
• Fits ANSI standard and big bore pumps;
• Faces, metallurgies and elastomers are easily upgradeable;
• Faces designed for optimum heat dissipation;
• Metric sizes are available.

• All the benefits of the SB1 design plus vent and drain gland with throttle bushing
  
• Pipe connections are made to different sizes to assure that correct piping plans are employed
  
• Cost-effective "upgrade"

Operating Conditions

Max Temp - 400ºF (204ºC)
Max Pressure - 300 PSI (20 bar)
Max Speed - 6000 FPM (30 m/sec)

Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time. Contact Flex-A-Seal if in doubt.