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Type and function of the seal of the pump fitting

Jul 11, 2018

In the pump fittings, the seal is also part of it. The so-called seal ring, which is usually an annular cover composed of one or several parts, is fixed on a ferrule or washer of the bearing and contacts another ferrule or gasket or forms a narrow labyrinth gap to prevent oil leakage and external Intrusion. At present, the seals of pump parts are mostly made of nitrile rubber, natural rubber, neoprene, ethylene propylene rubber, fluorine rubber, silicone rubber and blended rubber.


Types of seals for pump accessories:

There are many types of seals available on the market today, such as O-type, triangle type, rectangular type, D-type, T-type, square type, heart type, X-type, five-edge type and olive type. O-ring seals are commonly used on pump products.


The role of the O-ring seal of the pump fitting:

In most cases, O-rings are mainly used for static and reciprocating seals. When the O-ring of the pump fitting is used for a rotary motion seal, it is usually limited to low-speed rotary seals.