The nominal contact area and effective contact area of u200bu200bthe mechanical seal-

The nominal contact area and effective contact area of u200bu200bthe mechanical seal

　2017-07-10　　

The nominal contact area of u200bu200bthe mechanical seal A: The area of u200bu200bthe annular area between the narrower seal end face outer diameter D2 and inner diameter 4D1 in the mechanical seal device, also known as the area of u200bu200bthe seal end face, that is, the area of u200bu200bthe seal end face Effective contact area. Its expression is

The effective area A of the mechanical seal: refers to the effective area where the pressure of the sealing fluid acts on the compensation ring to close the non-compensation ring. Calculation formula for effective contact area

For internal flow mechanical seals [Figure 1-3 (a), (b), (c)]

Figure 1-3 Balance type

For outflow mechanical seals [Figure 1-3(d), (e), (f)⑴]

Where D9 is the slip diameter, also known as the balance diameter, which refers to the diameter of the shaft (or sleeve) where the fluid pressure acts on the auxiliary seal ring of the compensation ring.

H9B mechanical seal 　　523.html,

Schematic diagram of the sealing surface width of the mechanical seal 　 　 mechanical seal parameters