Airtac GAFR Adjustable Filter Regulator GAFR40015ALJNK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40015ALJNK 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 1/2" ports, a 40 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 size1/2"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade40 µm
- Bowl materialPC
- Drainautomatic
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR40015ALJNK
The GAFR40015ALJNK is a filter and pressure regulator combined into a single body, with no lubricator section. It cleans incoming air through a diversion structure that separates liquid water and solid particles, then delivers a steady outlet pressure via its balanced regulator mechanism. This model has a 1/2in port, a lower-pressure range of 0.15-0.4 MPa (20-58 psi), and a 40 um filter element.
This 880 g unit replaces the need for separate filter and regulator bodies, reducing potential leak points and saving space on the rail. The automatic drain clears condensate from the 100 cc bowl without manual intervention. A reverse-flow (reflux) valve is fitted as an ordering difference, and no gauge is supplied, though the 1/4in gauge connection is ready for one.
Airtac GAFR Adjustable Filter Regulator GAFR40015ALJNK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40015ALJNK |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | PC |
| Drain type | Automatic 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 | 100 cc |
| Bracket | Not included (J) |
| Weight | 880 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 GAFR400 is 1/4" if you add one. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR40015ALJNK
| GAFR400 | GA400 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). |
| 15 | Port size 1/2". This body offers 10 = 3/8", 15 = 1/2". |
| A | Drain: Automatic 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; 1/4" 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 GAFC400-15 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 | GAFR400 · 1/2" · curve to 7000 L/min |
|---|---|
| One size down | GAFR300 |
| One size up | GAFR500 (curve to 8000 L/min) |
| Add a lubricator | GAFC400-15 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR40015ALJNK Is Used
Precision pressure setting
Set a stable low pressure for a sensitive pneumatic control circuit that must not see spikes above 0.4 MPa, using the balanced regulator and its self-locking knob.
Wet main line protection
Protect downstream valves from water and solids on a 1/2in branch line where the automatic drain handles frequent condensate without manual checks.
Compact machine build
Save rail space on a machine frame by combining filtration and regulation in one 880 g body, with the bracket omitted for direct panel mounting.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40015ALJNK the Right Air-Prep Unit?
Choose this GAFR400 body for a 1/2in port line that needs a lower regulated pressure band. The automatic drain (A) suits unattended operation or wet supply lines, while the 40 um element handles general-purpose filtration. The bracket is omitted (J), so plan for panel mounting or an existing bracket, and the no-gauge (N) build leaves the 1/4in connection for your own gauge. The PT thread option matches standard piping. If the downstream line needs lubrication, order the matching GAFC400-15 combination instead, as this unit does not add oil. With a 1.0 MPa max supply, the regulated band tops out at 0.4 MPa, leaving about 0.6 MPa of headroom above the 0.4 MPa top of the range.
Quick checklist
- ✓ Body size for your peak flow (1/2" 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 100 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 880 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 GAFC400-15 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR40015ALJNK FAQ
The GAFR40015ALJNK has a pressure range of 0.15-0.4 MPa (20-58 psi), a max pressure of 1.0 MPa (145 psi), and a proof pressure of 1.5 MPa (215 psi). It operates from -5 to 70 C and must not freeze. The drain bowl holds 100 cc and the unit weighs 880 g.
The N code means no gauge is supplied, leaving a 1/4in connection for adding one later. The J code omits the mounting bracket, so this unit is intended for panel mounting or use with an existing bracket. Both options reduce cost when the standard accessories are not needed.
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