Flowserve BXHHS Metal Bellow Seals

Flowserve’s BXHHS seals provide sealing capability at extreme temperatures in challenging refinery and petrochemical services. When pumping services push beyond temperature limits of elastomers, Flowserve’s BXHHS seals offer reliable sealing in both single and dual seal configurations. 

Flowserve’s BXHHS seals are loaded with features to handle high and low temperatures beyond where the traditional O-ring seals can go. The flexible graphite secondary seals offer universal compatibility at all temperatures between -73°C and 427°C (-100°F to 800°F). The advanced design of the bellows flange allows for a wide cross-section that stabilizes the thermal rotation of the seal face to maintain full face lubrication at high temperature. The mating seal face is securely seated on a graphite gasket to encourage heat transfer away from the seal face running surface while also enhancing face flatness at high temperatures. Flowserve’s BXHHS seals offer a rotating bellows that acts to clear convolutions and prevent accumulation of debris.