Advantage Seal Type 81 Replaces:
John Crane® Type 8-1,
AESSEAL® M01SU,
VULCAN® 1609S
Type 81 pump mechanical seal is widely used, and it is a multi-spring O-ring push mechanical seal. It is designed with a variety of materials to meet the working conditions of different media. Widely used in chemical, chemical fiber, petroleum, food, medicine, environmental protection and other industries.
Single seal, multi spring, unbalanced, arbitrary rotation
Design standard：EN12756 API 610
A. Rugged mechanical seals are available in a wide variety of elastomers for handling practically every industrial fluid. All components are held together by a snap ring in a unitized construction design.
B. PositiveMechanical Drive Design Eliminates Slippage
C. Multiple Springs Provide Precise Face Loading
Pressure：p1 = 24bar (348 PSI)
Temperature：t =-40 °C（-40°F) … +260 °C（+500°F)
Sliding velocity：vg = 25 m/s (82 ft/s)
Water, oil, amorphous acid, base, salt, organic solvent, etc
Compact design permits use in all types of rotating equipment centrifugal pumps, mixers and agitators.
Type 91
Type 37F
Type 81B
Type 91B
Type 37
Type 846B
Type 846
Type 852
Type 850B
Type 850
