Other Hydraulic Symbols

Other Hydraulic Symbols (Connections, Fluids, Logic, & Non-Energy Items)

While core hydraulic symbols focus on actuators, pumps, and valves, there exists a wide array of other hydraulic symbols that represent non-energy-transmitting elements, fluid types, and connection styles — all of which are crucial for accurate schematic representation.

This category includes:

• Lines & Connections: solid, dashed, pilot, drain, flexible, rigid lines

• Ports & Connections: T-ports, quick-disconnects, thread types

• Fluid indicators: filter elements, strainers, tanks, level sight glasses

• Logic & Control: pressure switches, timers, accumulators with pre-charge

• Energy storage or management: heat exchangers, coolers, electric signal inputs

Understanding these “secondary” symbols ensures a full grasp of hydraulic schematics and helps in designing and servicing complete, real-world systems. These symbols often determine how systems are maintained, filtered, monitored, or connected to external automation (PLC, sensors).

Technicians and designers who master these symbols become highly proficient in building, customizing, and upgrading hydraulic systems in construction, manufacturing, and mobile applications.