Air Preparation (FRL Units)

Clean Air, Reliable Machines – FRL Units That Work

Compressed air straight from the compressor carries water, oil, and dust. Left alone, they wear down seals and clog valves. Fokca FRL units stop that before it starts. Filters with 5µm to 0.01µm elements trap contaminants. Regulators hold pressure steady regardless of upstream changes. Lubricators deliver oil in precise amounts. Combination units save space – 2-in-1 filter-regulators and 3-in-1 FRLs with G1/8 to G1 ports.

Metal or polycarbonate bowls with guards. Manual or auto-drain options. Pressure range 0.5-10 bar. ISO 9001 manufacturing. Add pressure gauges, auto drains, mounting brackets as needed. One component or a complete assembly – same reliability. For packaging lines, automation cells, any machine that runs on air.

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Air Preparation (FRL Units)

Compressed air is never clean enough straight from the compressor. Water, oil, dust – they all travel through your pipes, wearing down seals, clogging valves, slowing cylinders. Fokca FRL units are the first line of defense.

What an FRL Actually Does？

Three letters. Three jobs.

● F – Filter: Takes out the dirt. Water, oil, particulate. What's left is air that won't destroy your equipment.

● R – Regulator: Holds pressure steady. Not too high, not too low. Just what your system needs, regardless of what's happening upstream.

● L – Lubricator: Adds oil in precisely the right amount. Keeps seals alive, valves moving, cylinders cycling.

The Range

● Individual Components – When You Need Just One

• Air filters: 5µm for general use. 40µm for pre-filtration. 0.01µm for critical applications. Manual or auto drain. Metal or polycarbonate bowls. Bowl guards standard.

• Pressure regulators: Stable output regardless of inlet variation. Relieving type standard. With or without gauge. G1/8 to G1 ports.

• Lubricators: Adjustable drip rate. 0.1 to 1.5cc per cycle. Refill without stopping the machine.

● Combination Units – Everything in One

• Filter-regulators (2-in-1): Less plumbing. Less space. One less leak point.

• FRL units (3-in-1): The full package. Filter, regulator, lubricator. G1/8 to G1 ports. Most popular choice for a reason.

• Modular FRLs: Individual components with quick connectors. Build exactly what you need. Add or remove sections later.

● What Else Belongs in the Air Prep Line

• Pressure gauges: 40mm or 50mm diameter. G1/8 or G1/4 connections. Readable from across the machine.

• Auto drain valves: Float type or timer. No more climbing under machines to drain bowls.

• Soft start valves: Pressure builds gradually. Prevents sudden cylinder movement when restarting.

• Check valves: Hold pressure downstream. Useful when you need pressure to stay.

• Mounting brackets: For panel mounting. For wall mounting. For keeping everything where it belongs.

Why Fokca FRLs Don't Cause Problems

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● Bowls that don't crack: Polycarbonate or metal, your choice. Guards standard on polycarbonate.

● Drains that actually drain: Manual or auto. No stuck floats, no seized valves.

● Pressure that stays where you set it: Good regulation characteristics. No drift.

● Gauges you can read: Clear markings. Properly damped. No bouncing needles.

Numbers That Matter

● Pressure range: 0.5-10 bar

● Filter elements: 5µm, 40µm, 0.01µm

● Port sizes: G1/8, G1/4, G3/8, G1/2, G3/4, G1

● Bowl options: Polycarbonate (see-through) or metal (tough)

● Drain types: Manual, semi-auto, full auto

● Temperature: -5°C to +60°C standard

How to Pick the Right One

Step 1: What's your port size?

Match your existing piping. G1/4 for small machines. G1/2 for larger systems.

Step 2: What do you need?

Just filtration and regulation? 2-in-1. Need lubrication? 3-in-1. Existing lubricator? Add just a filter-regulator.

Step 3: Any special requirements?

Auto drain? Add it. Metal bowl? Choose it. Space tight? Go modular.

Common Questions

Q1: What size filter do I need?

5µm for most applications. 40µm if you have a separate main filter upstream. 0.01µm for critical applications like blow-off or precision instruments.

Q2: Auto drain or manual?

Auto if you want to forget about it. Manual if you prefer to check the bowl regularly and don't mind pushing a button.

Q3: Polycarbonate or metal bowl?

Polycarbonate lets you see contamination. Metal for high temperatures or if chemical resistance is needed.

Why Fokca for FRLs?

One source for everything in the air line. Components that work together because they're designed to. Competitive pricing. Stock ready to ship. Support when you need it.

Browse the range below. Or tell us what you're building and we'll recommend what goes in the air line.