QBU

Brands:
Flowserve

Industries:
Cooling Systems, Crude Handling and Treatment, Condensate Systems, Water Injection, Condensate Systems, Utilities, Catalytic Cracking, Steam Systems, Boiler Feedwater Systems, Steam Systems, Boiler Feedwater Systems, Heavy Oil and Upgrading, Boiler Circulation Systems, SAGD, Boiler Circulation Systems, Miscellaneous Services, Water Handling and Treatment, Logistics and Tank Farm, Alkylation, Hydrotreating, Hydrocraking, Distillation, Delayed Coking, Cooling Systems

Standards:
API682
The QBU groove seal is a single pusher seal designed specifically for hot water services where cooling water is not available. Pre-engineered for moderate pressure boiler feed and boiler circulation pumps with higher reliability and longer life than conventional seals.

QBQ
High balanced, low emission, light hydrocarbon design, same operating limits as QB, specific gravity's down to 0.45 with multi-port flush.