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Aro EXP Series Air operated Diaphragm Pumps

Superior ARO-Flo Filters, Regulators & Lubricators (FRLs)

The ARO-Flo Series FRLs Raise The Bar In The Industry For Safety, Flow Performance And Modularity.

Since 1930, ARO has been an industry leader in the design and manufacture of pneumatic tools and air preparation equipment.

Clean air is a key ingredient that enables the effective and efficient operation of tools, equipment, and machinery in almost every industry. Using air preparation devices, such as filters, regulators and lubricators (FRLs), is an excellent means of keeping your air supply in top condition, as well as enabling your tools and equipment to operate at their peak performance. The ARO-Flo Series FRLs continue the tradition of offering premium products for your operation, and also raises the bar in the industry for safety, flow performance, and modularity.

If you need assistance choosing the right air filter, regulator, and lubricator combination for your application or have questions regarding assembly or accessories, contact us today. Our experts are happy to help.

Filters Regulators Lubricators FRL

Piggybacks

Filter-regulator, or “piggybacks,” combine the functions of both a filter and regulator. Piggybacks are compact and most effective when space is a constraint. Piggybacks can be ordered with different filter elements and can be modified with different springs, depending on the filtration and air regulating requirements.


2-Piece Combo Units

Another popular combination of filters, regulators, and lubricators is the F/R+L (two-piece combo) arrangement. More configurations may be used depending on your application needs. ARO-Flo combination FRLs are easy to assemble using modular spacer kits.


3-Piece Combo Units

Filters, regulators, lubricators, and piggybacks can be combined together to form combinations. They are typically strung together in the F+R+L arrangement (three-piece combo) and F/R+L (two-piece combo) arrangement, although other configurations are also used depending on application needs. ARO-Flo combination FRLs are easily assembled using modular spacer kits.


Filters

ARO-Flo compressed air filters are designed to remove airborne solid and liquid contaminants. Filters can be ordered with different elements, including coalescing models which are capable of removing oil aerosols and particles down to 0.3 micron. Standard filters are sold with 5-micron elements; 40-micron elements can be purchased and installed separately.


Regulators

Air line regulators provide controlled consistent air pressure as required for specific pneumatic equipment connected to the air system. All ARO-Flo regulators are offered with a standard adjustment range of 0-140 psig (0-9.6 bar). Alternative spring ranges are offered for easy conversion to suit different requirements. Non-relieving regulators are offered for applications where the venting of downstream overpressure is undesirable.


Lubricators

ARO-Flo mist-type lubricators help ensure that pneumatic devices receive the required lubrication to maintain peak performance, reduce wear, and prolong service life. They are designed to provide the correct amount of oil required for most general applications in a pneumatic system, delivering a constant ratio of oil to airflow. Precise oil feed adjustment sets the proper oil drip rate. Lubricators should be installed close to the downstream application to ensure the effective distribution of oil.


Parts & Accessories

ARO offers a variety of accessories and replacement parts to enable greater customization and flexibility for your application. Lockout valves, check valves, mounting brackets, manifolds, soft start valves, gauges, and pipe adapters are available in several sizes and configurations to fit your needs.


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Modular Clamp Spacer Kit

The ARO Modular Clamp Spacer Kit can connect any two modular units or accessories together. The kit includes connecting bolts.
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Soft Start Valve

ARO Soft Start Valves are designed to prevent air surge or pressure spikes during machine start-up by allowing the pressure to build gradually.
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Pressure Switch

Pressure Switches allow for the sensing of low and high pressure thresholds. They are designed to be used with the manifold block.
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Manifold Block

ARO Manifold Blocks are installed downstream of the regulator and allow clean air to be diverted to multiple applications.
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Lock-Out Valve

ARO Lock-Out Valves prevent accidental machine start up. Lock-Out Valves feature a lockable tab switch and modular construction.
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FRL Pipe Adapter

FRL pipe adapters play a crucial role in connecting your ARO FRL (Filter, Regulator, Lubricator) unit to the air system using a modular arrangement.
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Check Valve

ARO check valves prevent downstream pressure loss. Featuring modular construction, they act as a one-way directional valve.
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C-Bracket

C-Brackets are used for mounting your ARO filter or lubricator unit to a wall. C-Brackets provide good wall-to-unit clearance.
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L-Bracket

Use ARO L-Brackets to mount your regulator or piggyback unit to a wall or flat surface. Use a panel nut to keep the unit in place.

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T-Bracket

Use T-Brackets to mount your FRL combination unit to a wall or flat surface. Multiple T-brackets can be used for several units.
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FRL Gauges

Non-flush FRL gauges for your application: Use 1/8'' port gauges for ARO-Flo Series or 1/4'' port gauges for Super Duty Series.

ATEX

Providing safe tools and equipment is our top priority. Our ARO-Flo Series of filters, regulators and lubricators and select accessories can be used in hazardous duty locations requiring ATEX compliance. Learn more.

Safety

ARO-Flo Series FRLs are designed with integrated safety features such as locking bowls and clear multilingual markings. Accessories such as lockout valves, check valves, and soft-start valves allow the air supply to be safely managed and controlled.

ARO attests that ARO-Flo Series of filters, regulators, lubricators (1000, 1500, 2000, 3000 Series) and select accessories are out of scope for ATEX Directive 94/9/EEC or 2014/34/EU. Instruction Manuals and certificates regarding ATEX Declaration can be found here.

Modularity

All ARO-Flo accessories are designed to integrate with each other within each size range. From pipe adapters to T-brackets, your complete FRL assembly and its individual components can be easily, safely, and quickly assembled or disassembled with a minimum of tools — no fuss or complications, even with fixed piping.

Performance

ARO-Flo Series FRLs set the standard for flow performance. Simply put, air flows better through ARO-Flo filters, regulators, and lubricators than almost any other air filtration device. This means less air is choked during the air preparation process, and your equipment can perform at its peak performance.

Installation

The filter, regulator and lubricator (FRL) should be installed in the order shown in the illustration below. If a coalescing filter is required, it should be installed downstream from a standard filter. Individual take-off lines to the FRL and air tool or equipment should be from the top of the compressed air line. Make sure that air flow markings are followed for proper flow direction through the FRL units.
To trap and expel water, sludge and other contaminants which may collect on the bottom of the air line, a drip leg drain should be used. Drip leg drains should be installed at low points in the piping system and at the far end of the distribution system.

 

 

ARO Filter Regulator Lubricator FRLs Installation