Filler and Breather Filters for Construction Equipment
Filler and breather filters are mounted on the hydraulic tank and enable tank ventilation during changing oil levels. Depending on design, they limit the ingress of dust, dirt and moisture.
Selection based on reference number, connection, design and tank configuration. The decisive factor is technical compatibility with the existing unit.
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Breather filters and filler breathers on hydraulic tanks
Filler and breather filters provide tank ventilation and protect the tank opening during filling and operation.
Depending on design, the focus is on ventilation, filling function, moisture control or serviceability.
- Breather filters: ensure controlled air exchange at the tank
- Filler breathers: combine tank ventilation with filling function
- Desiccant breathers: additionally reduce moisture ingress
- Spin-on and replaceable elements: serviceable designs for defined ventilation systems
- Accessories and service components: e.g. strainers, caps or service kits
Connection sizes, threads and tank interface
Filler and breather filters are integrated into the tank via metric connections, BSP threads (parallel pipe threads) or NPT threads (tapered threads). Key factors are connection size, thread type and the existing tank opening.
Visually similar breathers can differ in connection layout, airflow capacity, filter design or additional functions and are not automatically interchangeable.
Moisture control and air filtration at the tank
Standard breather filters reduce the ingress of airborne particles. In humid environments, desiccant breathers are used to absorb moisture from incoming air.
Selection depends on operating conditions, machine environment and required oil cleanliness at the tank.
Related components on the hydraulic tank
Filler and breather filters are directly linked to the hydraulic tank and its components. This includes parts from hydraulic filter accessories as well as, depending on tank design, sight glasses and other tank-mounted components.
Breather filters, filler breathers and service parts from system manufacturers
The category includes breather filters, filler breathers, desiccant breathers, air dryers and related service components from various system manufacturers. The key factor is technical compatibility with the existing tank setup.
Before ordering
- Reference number of the existing breather or filler filter
- Connection type and thread
- Design and tank interface
- Required function: ventilation, filling or moisture control
- Existing service or accessory configuration
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