Y-type seals can be divided into wide Y-rings, narrow Y-rings and Yx-type seals according to the length and width of the section. The pressure resistance of the wide-section Y-ring is slightly smaller than that of the narrow Y-ring, which can only be applied to the working environment of P<20MPa, and the narrow Y-ring can be used for the working pressure P<32MPa. According to whether the height of the two lips is the same, the Y-type sealing ring can be divided into the unequal lip Y-ring seal for the shaft, the unequal lip Y-ring seal for the hole and the common lip lip Y-type seal for the shaft hole. ring. Y-rings are manufactured in different materials, and can be divided into nitrile rubber Y-rings, fluoroelastomer Y-rings, and urethane-rubber Y-rings. Working speed range: 0.01 to 0.6 m/s when made of butyl rubber; 0.005 to 0.3 m/s when made of fluororubber; 0.01 to lm/s when made of urethane rubber. The sealing performance, service life of the Y-ring and the working pressure limit of different retaining rings are preferably made of urethane rubber.

The Y-ring has a Y-shaped cross section and is a typical lip seal. Widely used in reciprocating dynamic sealing devices, its service life is higher than O-rings. The applicable working pressure of the Y-ring is not more than 40MPa, and the working temperature is -30~80°C. Dongguan Teflon Y-type seal ring manufacturers analyze its characteristics: reliable sealing performance; small friction resistance, smooth movement; good pressure resistance, wide pressure range; simple structure, low price; easy to install. It can be distinguished from the inclination angle of the lip of the largest and smallest diameter sides of the Y-ring, that is, the inclination angle of the inner lip and the outer lip: if the inclination angle of the lip of the largest diameter side is smaller than the angle of the smallest diameter side, the side is For the shaft; the opposite is for the hole. Because the Y-ring seals against the compression and stretching of the slanted lip. The shaft is stretched by the inner lip.