Airtac GAFR Adjustable Filter Regulator GAFR30008SJNK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR30008SJNK 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 GAFR30008SJNK
The GAFR30008SJNK is a filter and regulator combined into one body, replacing a separate filter plus regulator pair. It spins incoming air to separate liquid water and trap solid particles, then delivers a steady outlet pressure via a balanced, self-locking regulator. This unit has a 1/4in port, works in the 0.15-0.9 MPa (20-130 psi) range, and uses a 40 um element.
This model ships with a 60 cc condensate bowl and weighs 500 g, placing it in the mid-size GAFR300 class. The pressed-in knob resists drift from vibration, keeping the set pressure stable. No lubricator is included or fitted - this is a filter and regulator only, with a single drain bowl.
Airtac GAFR Adjustable Filter Regulator GAFR30008SJNK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR30008SJNK |
|---|---|
| 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 GAFR30008SJNK
| 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. |
| K | Reverse-flow (reflux) valve attached. |
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 GAFR30008SJNK Is Used
Precision Fixture Clamping
Feed a single pneumatic clamp or small fixture with stable 0.15-0.9 MPa pressure. The 40 um element protects the valve from particles, while the self-locking knob holds the setpoint during machine vibration.
Bench Test Rigs
Use on a test bench where a clean, regulated air supply is needed for prototype actuators or sensors. The 60 cc bowl provides a visible condensate level, and the manual drain allows quick purging between tests.
Maintenance Trolley
Mount on a mobile maintenance cart to supply filtered, regulated air to pneumatic tools. The compact 500 g body and 1/4in port fit tight spaces, while the reflux valve is pre-fitted for reverse-flow conditions.
Is the Airtac GAFR Adjustable Filter Regulator GAFR30008SJNK the Right Air-Prep Unit?
Choose the GAFR300 body for 1/4in or 3/8in ports, with a 60 cc drain bowl and flow plotted to 3500 L/min at 0.7 MPa inlet. This version has a PC bowl, a semi-auto plus manual drain, and no mounting bracket (J) for panel-mount installations. The 40 um element suits general shop air, while the 5 um option (W) is for finer filtration needs. No gauge is fitted (N), but the 1/8in gauge connection is ready for an add-on. The reverse-flow (reflux) valve (K) is included as an ordering difference. If downstream lubrication is required, order the matching GAFC300-08 combination instead. 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the range.
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 GAFR30008SJNK FAQ
The GAFR30008SJNK is a filter & regulator with a 1/4in port, working pressure 0.15-0.9 MPa (20-130 psi), max pressure 1.0 MPa (145 psi), proof pressure 1.5 MPa (215 psi), temperature range -5 to 70 C, 60 cc drain bowl, and 500 g weight. It uses a 40 um element and has a PC bowl.
The N code means no gauge is supplied, leaving a 1/8in connection for adding one later. The J code omits the mounting bracket, which suits installations using existing panel mounts or custom frames. Both options reduce cost when the standard accessories are not needed.
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