
Hydraulic tank accessories are essential components used to improve the functionality, safety, maintenance, and performance of hydraulic reservoirs. Properly selected tank accessories help control hydraulic fluid contamination, monitor oil level and temperature, support proper tank ventilation, and simplify filling, draining, and maintenance operations.
Hidroman provides a wide range of hydraulic reservoir accessories for mobile machinery, industrial equipment, agricultural machinery, construction equipment, mining applications, hydraulic power units, and OEM hydraulic systems.
Our engineering approach helps customers select the right tank components according to reservoir size, hydraulic fluid, operating conditions, filtration requirements, and machine design.
A hydraulic tank, also known as a hydraulic reservoir, is more than a container for hydraulic oil. It plays an important role in fluid storage, heat dissipation, air separation, contamination control, and overall hydraulic system performance.
Hydraulic tank accessories support these functions and may include components such as:
The correct combination depends on the hydraulic system design and operating conditions.
Hidroman offers hydraulic reservoir components designed for different hydraulic applications and tank configurations.
Rather than selecting individual components only by size, the complete hydraulic reservoir design should be considered, including fluid volume, filtration, temperature, contamination control, and maintenance requirements.
Hydraulic Tank Breathers
A hydraulic tank breather allows the reservoir to exchange air as the hydraulic fluid level changes.
The breather helps prevent excessive pressure or vacuum from developing inside the reservoir and can also reduce the amount of airborne contamination entering the hydraulic tank.
For demanding hydraulic systems, selecting the appropriate breather filtration level can be an important part of contamination control.
Hydraulic oil level indicators allow operators and maintenance personnel to visually check the fluid level inside the reservoir.
Maintaining the correct hydraulic oil level is important for proper pump operation, heat dissipation, and system reliability.
Depending on the tank design, level indicators may be available in different sizes, configurations, and mounting arrangements.
Combined oil level and temperature indicators provide two important pieces of information from a single component.
Monitoring both oil level and temperature can help maintenance teams identify abnormal operating conditions before they develop into more serious hydraulic problems.
A hydraulic filler breather combines the filling function with air filtration and is commonly installed on the top of a hydraulic reservoir.
A properly selected filler breather helps reduce contamination entering the reservoir during normal operation while providing a convenient point for adding hydraulic fluid.
Hydraulic suction strainers are installed in the suction circuit between the reservoir and hydraulic pump.
Their purpose is to prevent larger particles from entering sensitive hydraulic components.
Suction strainers must be correctly sized to avoid excessive restriction or cavitation risk at the pump inlet.
Return-line filters remove contamination from hydraulic fluid before it returns to the reservoir.
Proper return filtration is an important part of hydraulic contamination control and can help extend the service life of pumps, valves, cylinders, and other hydraulic components.
Drain plugs provide a practical method for removing hydraulic fluid during maintenance.
Magnetic drain plugs can also help collect ferrous particles from the hydraulic reservoir, providing an additional indication of potential wear inside the hydraulic system.
Inspection covers provide access to the inside of a hydraulic reservoir for cleaning, inspection, and maintenance.
They are particularly useful for larger hydraulic tanks and industrial hydraulic systems where internal contamination must be controlled.
Hydraulic oil contamination, incorrect oil levels, excessive temperature, and poor reservoir ventilation can negatively affect hydraulic system performance.
Proper tank accessories help support:
A properly designed reservoir should therefore be considered an active part of the hydraulic system rather than simply an oil storage container.
For OEM hydraulic systems, tank accessories should be selected during the hydraulic system design stage.
The reservoir and its accessories need to work correctly with:
For example, a high-flow hydraulic system may require different suction, return, and breather arrangements than a compact mobile hydraulic power unit.
Hidroman evaluates these requirements as part of the complete hydraulic system rather than treating the reservoir accessories as independent components.
Mobile hydraulic equipment operates under demanding conditions including vibration, temperature changes, dust, shock loads, and frequent hydraulic cycle changes.
For this reason, hydraulic reservoir accessories used on mobile equipment should be selected according to the actual operating environment.
Typical applications include:
Compact and correctly specified tank components can help simplify installation while supporting reliable hydraulic system operation.
Industrial hydraulic systems often operate continuously and may require higher levels of contamination control and maintenance accessibility.
Hydraulic tank accessories can be used in:
For industrial applications, reservoir design should consider oil volume, heat dissipation, filtration, fluid cleanliness, maintenance access, and operating temperature.
Choosing the correct hydraulic reservoir accessories requires consideration of the complete hydraulic system.
Tank accessory dimensions and configurations should be compatible with the hydraulic reservoir.
Suction strainers, return filters, and other flow-related components must be sized according to the actual hydraulic flow.
Temperature indicators, seals, breathers, and other components should be suitable for the expected operating temperature range.
Materials and seals must be compatible with the hydraulic oil or fluid used in the system.
The required filtration level should be determined according to the hydraulic components and cleanliness requirements of the system.
Thread type, mounting dimensions, port configuration, and available installation space should be checked before selecting the component.
If frequent inspection, filling, draining, or cleaning is required, tank accessories should be selected to make maintenance as practical as possible.
Contamination is one of the most important factors affecting hydraulic component life.
Particles entering through the reservoir can circulate through pumps, valves, motors, and cylinders. Properly selected breathers, filling filters, suction strainers, and return filters can form an important part of the system's overall contamination-control strategy.
Hidroman also provides hydraulic filtration and fluid-conditioning solutions designed to support hydraulic system cleanliness and reliability.
For demanding systems, reservoir design, filtration, flushing, and oil cleanliness should be evaluated together.
Hydraulic power units often require compact and carefully integrated reservoir components.
Depending on the HPU design, the tank may incorporate:
Proper integration helps reduce installation complexity and makes maintenance easier.
Hidroman designs and supplies hydraulic power systems according to application-specific pressure, flow, tank capacity, motor power, and control requirements.
Not every hydraulic application can be solved with a standard reservoir configuration.
OEM and special-purpose machinery may require:
Hidroman can evaluate the complete hydraulic application and develop a suitable reservoir and accessory configuration according to the machine's requirements.
Hidroman combines hydraulic component supply with hydraulic system engineering experience.
Our hydraulic solutions can cover components including hydraulic tanks, filters, valves, pumps, cylinders, hoses, hydraulic power units, and related accessories.
This allows tank accessories to be evaluated within the complete hydraulic circuit rather than selected as isolated components.
Our focus is on:
Don't wait for a hydraulic failure. Proper reservoir design and component selection can help prevent problems before they occur.
For hydraulic tank accessories, reservoir components, OEM applications, or a complete hydraulic system solution, contact the Hidroman engineering team.




