Series B81B & B86B are multiple spring units developed for universal high pressure applications. The compact design permits their use in all types of centrifugal pumps. Torque transmission from retainer shell to seal ring is done through drive lugs. All components are held together by a snap ring which helps in easier installation and removal. As all parts are interchangeable, one can convert series B81B & B86B by changing only the seal ring and the secondary seal. This concept is ideal for stock rationalization.

Series B81 : This is a multiple springs unit specially developed for slurry application. The springs are protected from media by means of dynamic O-ring. Although being a balance seal no need to maintain step sleeve. The sleeve of unbalanced seal can be used for this seal series without modification. Torque transmission to the seal ring is given by strong multiple drive pins / lugs.

Series B81/CG : This is cartridge construction factory assembled slide on unit. It requires tightening of stuffing box studs, nuts and detaching of location plate before starting the equipment. No dimensional measurement are to be done at site. It can be installed by even a non skill person.

Series B900A/CG is specially designed cartridge seal for pumps handling oil, water and other fluids which are being pumped at very high pressure. These seals are widely used on pipe & Boiler feed water pumps. Very sturdy design and drive arrangement makes the seal suitable for very high pressure. This being multiple spring seal, it provides uniform face loading.