O-ring , also known as seal ring, is one of the most commonly used types of seals in various industries. It is a simple but extremely effective torus-shaped seal, usually made of a flexible material such as rubber, caoutchouc or elastomer. The O-ring works by compressing and deforming in the groove, creating a seal between two surfaces. When liquid or gas pressure acts on the O-ring, its elasticity and resiliency allow it to conform to the contact surfaces, creating a tight connection.

Seals in hydraulic pumps play a key role in ensuring the efficiency and durability of these devices. These seals prevent hydraulic oil leaks, maintain system pressure and protect the pump interior from contamination. Depending on the type of hydraulic pump and its application, different types of seals are used.

Hydraulic actuator seals are key elements ensuring tightness, efficiency and durability of actuators. They are used in both pistons and cylinder covers to prevent hydraulic fluid leaks, maintain pressure and minimize friction. There are several types of seals used in hydraulic actuators, and their selection depends on the specific requirements of the application.