Airtac GAFR Adjustable Filter Regulator GAFR300C10LJNW
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300C10LJNW is a genuine two-in-one filter & regulator — a diversion-type water/particulate filter and a balanced pressure regulator built into ONE body. It has 3/8" ports, a 5 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi). It has no lubricator, so it adds no oil to the airflow.
- TypeFilter & regulator
- Port size3/8"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade5 µm
- Bowl materialMetal
- Drainsemi-auto + manual
- Pressure gaugeNot fitted
- Weight500 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAFR Adjustable Filter Regulator GAFR300C10LJNW
The GAFR300C10LJNW is a filter and regulator combined into a single body, so the incoming air is cleaned and then set to a steady outlet pressure without needing separate components. This lower-pressure model operates from 0.15 to 0.4 MPa (20-58 psi), has a 5 um element, and uses a metal bowl for the 60 cc condensate chamber.
Weighing 500 g with a 3/8in port, this unit fits into the mid-range GAFR300 size class. The metal bowl is a build choice for the environment, while the 5 um element traps finer particles than the standard 40 um grade, making it suitable for lines feeding precision equipment.
Airtac GAFR Adjustable Filter Regulator GAFR300C10LJNW Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300C10LJNW |
|---|---|
| Series | GAFR300 filter & regulator |
| Port size | 3/8" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | Metal |
| Drain type | Semi-auto drain + manual drain |
| Fluid | Air |
|---|---|
| Max. pressure | 1.0 MPa (145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Capacity of drain bowl | 60 cc |
| Bracket | Not included (J) |
| Weight | 500 g |
Specifications follow the official AirTAC GAFR catalogue (pages 235-236). Air must not freeze in the unit. No gauge is supplied with this model — the gauge connection on a GAFR300 is 1/8" if you add one. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR300C10LJNW
| GAFR300 | GA300 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 10 | Port size 3/8". This body offers 08 = 1/4", 10 = 3/8", 15 = 1/2". |
| (blank) | Drain: Semi-auto drain + manual drain. |
| L | Lower pressure type — 0.15 - 0.4 MPa (20 - 58 psi). This body offers Standard (S) or Lower pressure (L). |
| J | No bracket (J) — supplied without the mounting bracket. |
| N | No pressure gauge; 1/8" gauge connection. |
| W | Filtering grade 5 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow valve. |
The filter and the regulator are ONE body here — there is no separate GAF filter or GAR regulator part to assemble. Need lubrication downstream too? Add a lubricator by ordering the matching GAFC300-10 F.R.L. combination instead.
Size Class & Flow Envelope
- GAFR2001/8"-1/4" · 2000 L/min
- GAFR3001/4"-1/2" · 3500 L/min
- GAFR4003/8"-1/2" · 7000 L/min
- GAFR5003/4" · 8000 L/min
- GAFR6003/4"-1" · 12000 L/min
Figures are the end of the flow curve plotted in the AirTAC catalogue at 0.7 MPa inlet pressure — a sizing envelope for comparing bodies, not a rated flow. Read the catalogue curve for a real duty point. Outlet pressure falls as flow rises, so size a body with headroom above your peak demand.
| This model | GAFR300 · 3/8" · curve to 3500 L/min |
|---|---|
| One size down | GAFR200 |
| One size up | GAFR400 (curve to 7000 L/min) |
| Add a lubricator | GAFC300-10 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR300C10LJNW Is Used
Precision valve control
Feed a bank of precision pneumatic valves that need clean, regulated air at a stable lower pressure, where the 5 um element protects sensitive internal orifices.
Laboratory air supply
Supply instrument air to a lab bench where fine filtration removes particles that could affect small-bore tubing or analytical equipment, with the lower pressure range matching delicate processes.
Compact machine station
Mount this regulator on a compact assembly station or test rig where space is tight, using the 3/8in port to feed a single actuator or small pneumatic circuit.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300C10LJNW the Right Air-Prep Unit?
Choose the GAFR300 body for 1/4in to 1/2in port lines; this 3/8in version sits between the smaller GAFR200 and the larger GAFR400. The metal bowl (C) is selected here, and the 5 um element (W) is for finer filtration. This model has no bracket (J) and no gauge (N), so plan for a panel mount and note the 1/8in gauge connection if you add one later. The lower-pressure type (L) tops out at 0.4 MPa, so confirm your system never needs more than that. The semi-auto and manual drains are both fitted, and the PT thread uses an MPa/psi gauge scale. If oil is needed downstream, order the matching GAFC300-10 combination instead. 1.0 MPa max supply leaves about 0.6 MPa above the 0.4 MPa top of the range.
Quick checklist
- ✓ Body size for your peak flow (3/8" here)
- ✓ Standard 0.9 MPa or lower-pressure 0.4 MPa
- ✓ Bowl material: PC (blank), Metal (C), Nylon (N)
- ✓ Drain: semi-auto + manual, or automatic
- ✓ Element 40 µm or 5 µm
- ✓ Bracket kept or removed (J); add a lubricator = GAFC
Installation & Maintenance Notes
- check Install with the airflow arrow: IN to OUT, gauge/knob accessible.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Set pressure with the pressed-in self-locking knob; pull to adjust, press to lock.
- check Drain condensate before the 60 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 500 g unit on its bracket, not on the tubing.
This is a filter and regulator only — it delivers filtered, pressure-set air with no added oil. If a downstream tool needs lubrication, add a separate lubricator or order the GAFC300-10 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR300C10LJNW FAQ
The GAFR300C10LJNW is a filter & regulator with a 3/8in port. The pressure range is 0.15-0.4 MPa (20-58 psi), with a max pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). It operates from -5 to 70 C, has a 60 cc drain bowl, and weighs 500 g. It uses a 5 um element and has a metal bowl.
The 'N' in the code means no gauge is supplied. This is for installations where a panel-mounted gauge already exists or where space is at a premium. The gauge connection on the GAFR300 body is 1/8in, so you can add a compatible gauge later if needed.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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