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    3/8" FRL Filter Regulator Lubricator

    5 out of 5 based on 2 reviews | Write a review
    Buy filter regulator lubricator combo with 3/8 inch port size, PT, G, NPT thread type available, filtering grade 40μm or 5μm, working pressure up to 148 PSI. Factory price combination unit used in pneumatic system to separate water and oil in compressed air.
    SKU: ATO-ACWS-38
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    Favorable price air FRL unit is a combination of filter, regulator and lubricator. It can filter the water, oil and other impurities in the compressed air, and keep the air source in a constant state to reduce the damage to valves or actuators of the device.


    • The structure of FRL unit is delicate and compact, which is convenient for installation and application.
    • The pressed-in self-locking mechanism can prevent the abnormal movement of the set pressure caused by external interfere.
    • The pressure loss is low and the efficiency of water separating is high.
    • The quantity of oil dripping can be directly observed through transparent check dome.


    Model ATO-BFC3000
    Fluid Air
    Pressure Type (Optional) Standard (0.9 MPa), Lower Pressure (0.4 MPa)
    Drain Type (Optional) Semi-auto Drain, Manual Drain, Automatic Drain
    Port Size 3/8"
    Thread Type (Optional) PT Thread (Scale: MPa, kgf/cm2, PSI)
    G Thread (Scale: Bar)
    NPT Thread (Scale: PSI)
    Filtering grade (Optional) 40μm or 5μm
    Pressure range Semi-auto and automatic drain: 0.15-0.9 mpa (20-130 PSI)
    manual drain: 0.05-0.9 mpa (7-130 PSI) 
    Max.pressure 1.0 MPa (145 PSI)
    Proof pressure 1.5 MPa (215 PSI)
    Temperature range -5~70 ℃ (Unfreeze)
    Capacity of drain bowl 60 CC
    Capacity of oil bowl 90 CC
    Recommended lubricant ISO VG 32 or equivalent
    Weight 0.7 kg


    Details of 3/8 inch Air Compressor Filter Regulator 1 Filter & Regulator
    2 Bracket
    3 Gasket
    4 Fixed Kit
    5 Screw
    6 Lubricator

    Dimensions (Unit: mm)

    Dimensions of 3/8 inch Air Compressor Filter Regulator

    Pressure and Flow Diagram

    Pressure and Flow Diagram of 3/8 inch Air Compressor Filter Regulator

    Tips: Lubricator of FRL unit troubleshooting

    No oil drips in the lubricator

    • Improper use of oil type, use normal turbine oil for disassembly and cleaning wells.
    • The oil passage is blocked by foreign matter such as dust, disassemble and clean the oil passage.
    • The oil surface is not pressurized, disassemble and clean the air into the housing part.
    • Due to poor oil quality and poor fluidity, replace with new oil after disassembly and cleaning.
    • Because the surrounding temperature is too low, the viscosity of the oil increases, so that the surrounding temperature is increased to the applicable temperature.
    • The oil volume adjustment screw is defective, remove the well to clean the oil volume adjustment screw.
    • The air flow direction of the lubricator is reversed, and the installation direction is changed.

    The oil in the lubricator cover has condensate mixed in

    • Excessive accumulation of condensate in the filter housing flows into the lubricator, discharges the condensate and regularly discharges the water in the filter.

    The lubricator leaks

    • The gasket is not well sealed, replace the gasket.
    • Synthetic resin housing is cracked, replace the housing.
    • The dripping window is broken, replace the window.

    The synthetic resin cover of the lubricator and the oil drip window are damaged

    • Used in organic solvent gas environment, using metal housing and glass window.
    • The influence of special additives in compressor lubricants, switch to other types of compressor lubricants.
    • The air inhaled by the compressor contains substances that are harmful to resin, so replace it with a metal housing.
    • Clean the housing and the dripping window with organic solvents, and replace the housing (use neutral detergent for cleaning).
    Existing reviews of 3/8" FRL Filter Regulator Lubricator
    Great buy.
    This FRL unit came very nicely packaged with quality parts. This unit works perfectly with my machine. I have had it installed for a few months now, and so far no issues at all. Great product, great buy.
    From: Richard | Date: 20/05/2022
    Was this review helpful? Yes No (0/0)
    Compact and well made!
    I like this filter regulator lubricator. It seems well made as well and is easily separated from the filter. No leaks, works great. It is easy to install and it is better than my original one. I would highly recommend.
    From: Donnell | Date: 30/03/2022
    Was this review helpful? Yes No (0/0)
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