Piston Sealing Ring

The piston seal is the core sealing component of reciprocating motion equipment such as hydraulic cylinders and air cylinders.The piston seal is the core sealing component of reciprocating motion equipment such as hydraulic cylinders and air cylinders. It is mainly installed in the groove on the outer side of the piston and is used to isolate the hydraulic oil, compressed air, and other media on both sides of the piston, preventing cavity leakage and ensuring smooth reciprocating motion of the piston. It is mainly installed in the groove on the outer side of the piston and is used to isolate the hydraulic oil, compressed air, and other media on both sides of the piston, preventing cavity leakage and ensuring smooth reciprocating motion of the piston. It is a key component for maintaining stable equipment pressure and improving operational efficiency.
It is a key component for maintaining stable equipment pressure and improving operational efficiency.
The common types include three: The first is the U-shaped ring, which has a simple structure and low cost, suitable for low-pressure conditions (such as small hydraulic tools); the second is the Y-shaped ring, which has a good bidirectional sealing effect and is suitable for medium-high pressure scenarios (such as hydraulic machines); the third is the combined seal (such as the Glauber ring), which is composed of an elastic body and a wear-resistant material, is resistant to high pressure and wear, and is mostly used in heavy construction machinery (such as excavator oil cylinders).
The common types include three: The first is the U-shaped ring, which has a simple structure and low cost, suitable for low-pressure conditions (such as small hydraulic tools); the second is the Y-shaped ring, which has a good bidirectional sealing effect and is suitable for medium-high pressure scenarios (such as hydraulic machines); the third is the combined seal (such as the Glauber ring), which is composed of an elastic body and a wear-resistant material, is resistant to high pressure and wear, and is mostly used in heavy construction machinery (such as excavator oil cylinders).
The material selection needs to match the working conditions: Nitrile rubber is resistant to oil and is suitable for ordinary hydraulic oil environments; fluorine rubber is resistant to high temperatures and corrosion and is suitable for high-temperature or strong chemical medium scenarios; polyurethane has strong wear resistance and extends the service life of the seal.The material selection needs to match the working conditions: Nitrile rubber is resistant to oil and is suitable for ordinary hydraulic oil environments; fluorine rubber is resistant to high temperatures and corrosion and is suitable for high-temperature or strong chemical medium scenarios; polyurethane has strong wear resistance and extends the service life of the seal. Its applications cover hydraulic machinery, construction machinery, automotive braking systems, and other fields, directly affecting the sealing performance and service life of the equipment. Its applications cover hydraulic machinery, construction machinery, automotive braking systems, and other fields, directly affecting the sealing performance and service life of the equipment.