Classification of mechanical seals

Classification of mechanical seals

According to the rotation or static of the spring element, it can be divided into Grundfos mechanical seals: rotary internal internal flow unbalanced single-face seal, referred to as rotary type; static external internal flow balanced single-face seal, referred to as static type. According to whether the static ring is located on the inside or outside of the sealing end face, it can be divided into: built-in type and external-mounted type. According to the leakage direction of the sealing medium, it can be divided into: internal loss and external flow. According to the unloading situation caused by the medium on the end face, it can be divided into: balanced and unbalanced. According to the logarithm of the sealing end face, it can be divided into: single end face and double end face. According to the number of springs, it can be divided into: single-spring type and multi-spring type of mechanical seals for kettles. Classified by elastic elements: spring compression type and bellows type. According to the non-contact mechanical seal structure classification: hydrostatic pressure type, fluid dynamic pressure type, dry gas seal type. Classified according to the temperature of the sealing chamber: high, medium, ordinary and low temperature sealing. Separation by seal chamber pressure: ultra-high, high, medium and low pressure mechanical seals