Airtac GAFR Adjustable Filter Regulator GAFR300C10SJN
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300C10SJN 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 40 µm filter element and regulates 0.15 - 0.9 MPa (20 - 130 psi). It has no lubricator, so it adds no oil to the airflow.
- TypeFilter & regulator
- Port size3/8"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 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 GAFR300C10SJN
The GAFR300C10SJN is a filter & regulator with both functions in one body. It spins incoming air to separate liquid water and trap solid particles, then a balanced regulator holds a steady outlet pressure. This unit has no lubricator and only one bowl - the 60 cc condensate bowl.
This model uses a 3/8in port, a metal bowl, and a standard pressure range of 0.15-0.9 MPa (20-130 psi). The 40 um element handles general shop air. It weighs 500 g and comes without a gauge, so the 1/8in gauge connection is ready for one if you add it later.
Airtac GAFR Adjustable Filter Regulator GAFR300C10SJN Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300C10SJN |
|---|---|
| Series | GAFR300 filter & regulator |
| Port size | 3/8" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| 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 GAFR300C10SJN
| 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. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 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. |
| (blank) | Filtering grade 40 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 GAFR300C10SJN Is Used
Machine tool air prep
Feed a 3/8in line to a CNC lathe or milling machine's pneumatic clutch and work-holding fixtures. The 40 um element and steady regulation keep actuation consistent.
Assembly station supply
Supply a manual assembly bench with filtered air for hand tools and small cylinders. The 60 cc bowl handles a shift of condensate before needing a drain check.
Test rig air source
Provide clean, regulated air to a leak tester or pressure gauge calibration rig. The balanced regulator holds setpoint as shop pressure fluctuates.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300C10SJN the Right Air-Prep Unit?
Choose the body and port first: GAFR300 offers 1/4in, 3/8in, or 1/2in ports with a flow curve plotted to 3500 L/min at 0.7 MPa inlet. The metal bowl (C) suits demanding environments, while the PC or nylon options are lighter. This model has the semi-auto and manual drains both fitted, so you can drain manually or let it purge automatically. The standard type (S) covers 0.15-0.9 MPa, and the 40 um element is the default. The J code means no bracket is included, so plan a panel mount or existing bracket. No gauge is fitted, and the thread is PT with an MPa/psi scale if you add one. If your line needs oil downstream, order the matching GAFC300-10 combination instead. The 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the range, so keep inlet pressure near 1.0 MPa for full output.
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 GAFR300C10SJN FAQ
Pressure range is 0.15-0.9 MPa (20-130 psi), max pressure is 1.0 MPa (145 psi), proof pressure is 1.5 MPa (215 psi), and temperature range is -5 to 70 C. The drain bowl holds 60 cc and the unit weighs 500 g. Port is 3/8in, element is 40 um, and the gauge connection is 1/8in.
The J code means the mounting bracket is NOT included. You will need a panel mount, a machine frame, or an existing bracket to secure the 500 g unit. The standard version includes the bracket, but this one omits it for installations where the bracket is already present.
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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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