Airtac GAFR Adjustable Filter Regulator GAFR30008SJN
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR30008SJN 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 1/4" 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 size1/4"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- Bowl materialPC
- 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 GAFR30008SJN
The GAFR30008SJN is a filter and regulator combined into a single body, saving rail space compared to separate GAF and GAR units. It spins incoming air to separate liquid water and trap solid particles, then regulates outlet pressure with a balanced, self-locking mechanism that resists drift from vibration.
This model has a 1/4in port, a 40 um element, and a working pressure range of 0.15-0.9 MPa (20-130 psi). It comes without a gauge or mounting bracket, and its 60 cc condensate bowl requires manual or semi-auto draining. Weighing 500 g, it suits compact machine builds where panel mounting is preferred.
Airtac GAFR Adjustable Filter Regulator GAFR30008SJN Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR30008SJN |
|---|---|
| Series | GAFR300 filter & regulator |
| Port size | 1/4" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| Bowl material | PC |
| 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 GAFR30008SJN
| GAFR300 | GA300 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| (blank) | Bowl material: PC. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 08 | Port size 1/4". 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 GAFC300-08 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 · 1/4" · curve to 3500 L/min |
|---|---|
| One size down | GAFR200 |
| One size up | GAFR400 (curve to 7000 L/min) |
| Add a lubricator | GAFC300-08 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR30008SJN Is Used
Precision jig actuation
Feed a single pneumatic jig or fixture on an assembly bench where a compact 1/4in filtered and regulated supply keeps clamping force consistent.
Prototype test rigs
Use on a lab or development rig where the 40 um element protects sensitive test valves and the 500 g body mounts easily to a profile rail.
Panel-mounted machine controls
Mount directly to a control panel without the included bracket, using the 1/8in gauge port to add a remote pressure readout for operator visibility.
Is the Airtac GAFR Adjustable Filter Regulator GAFR30008SJN the Right Air-Prep Unit?
Choose this GAFR300 with a 1/4in port when your line needs filtered, regulated air at flows within the 3500 L/min envelope (at 0.7 MPa inlet). The PC bowl is the standard choice; select a metal or nylon bowl if your environment demands different material compatibility. This unit ships with both semi-auto and manual drains, so you can drain condensate manually or let the semi-auto mechanism purge when pressure drops. The J code means no bracket is included, so plan for a panel mount or an existing bracket. The N code means no gauge is fitted, but the 1/8in gauge connection is ready for a field-installed unit. The 40 um element handles general workshop air; upgrade to a 5 um element for finer filtration. Thread is PT with an MPa/psi gauge scale. If you need lubrication downstream, order the matching GAFC300-08 combination instead. Note that 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the range, so plan for a supply near 1.0 MPa to achieve the full 0.9 MPa outlet.
Quick checklist
- ✓ Body size for your peak flow (1/4" 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 GAFC300-08 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR30008SJN FAQ
Working pressure range is 0.15-0.9 MPa (20-130 psi), with a maximum supply of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). Temperature range is -5 to 70 C and the unit must not freeze. The drain bowl holds 60 cc and the total weight is 500 g. The element grade is 40 um and the gauge connection is 1/8in.
The J code omits the mounting bracket for installations that use a panel mount or existing hardware, while the N code means no gauge is supplied. The 1/8in gauge connection remains available if you need to add a pressure gauge later to read the set pressure.
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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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