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Ingress of airborne contaminants into hydraulic
systems can cause a number of costly issues,
including increased wear on pumps and cylinders,
decreased performance, shorter maintenance
intervals, and added downtime.
The Parker AB Series comprises a full range of top-
mounted breathers and filler breathers designed to
prevent this by keeping out harmful contaminants and
allowing the tank / fluid reservoir to effectively breath
during equipment operation.

Multiple configurations are available to meet the
unique requirements of customers' hydraulic systems,
including:
Filler Breathers - Glass-filled nylon or plated metal
steel. Multiple installation available including single
hole, three hole, or six hole installation. Flow rates up
620 L/min (163 GMP).
Screw-on type Breathers - Glass-filled nylon or plated
metal steel. Multiple connection types available. Flow
rates up to 620 L/min (163 GPM). Dipsticks available
with all options (two lengths and in packs of 10).
Benefits
• Prevents contamination and ingress of dirt, sand,
dust, metal, etc. into hydraulic circuits, while allowing
sufficient airflow into and out of the fluid reservoir
• Lengthens time in between required maintenance
intervals, reduces operating costs, and extends overall
equipment/machine operational life
Features:
• Molded in non-corrodible, glass-filled nylon - strong
and light
• Filler breathers available with single hole, six hole, and
three hole installation
• Screw-on breather range - G1/2 and G3/4 options
• Compact range - G1/4, G3/8, R1/2 and R3/4 options
• Metal filler breathers - pressurized and unpressurized
threaded type
•Flange mounting type options
• Lockable options for reservoir security and oil
protection
For more information or a detailed discussion about
your specific requirements please contact Parker or an
authorised Parker distributor.