Airtac GAFR Adjustable Filter Regulator GAFR40015LNK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40015LNK 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
- Drainsemi-auto + manual
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR40015LNK
The GAFR40015LNK is a filter and pressure regulator combined in one body, handling 1/2in ports with a lower-pressure range of 0.15-0.4 MPa (20-58 psi). Its 40 um element and 100 cc condensate bowl serve a 880 g unit that replaces separate filter and regulator components, reducing potential leak points.
This model includes a semi-auto plus manual drain and a mounting bracket, but no gauge is fitted. The reverse-flow (reflux) valve is attached as an ordering difference. The balanced regulator mechanism helps hold the outlet pressure steady as supply varies, and the diversion structure spins air to separate liquid water and solid particles into the bowl.
Airtac GAFR Adjustable Filter Regulator GAFR40015LNK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40015LNK |
|---|---|
| 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 | 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 | 100 cc |
| Bracket | Included |
| 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 GAFR40015LNK
| 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". |
| (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). |
| (blank) | Mounting bracket included. |
| 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 GAFR40015LNK Is Used
Precision valve control
Feed a bank of precision pneumatic valves that require a stable, lower supply pressure. The balanced regulator holds the setpoint as upstream pressure fluctuates, while the 40 um element protects sensitive internals from particle wear.
Machine tool coolant lines
Supply a machine tool's pneumatic actuation circuits where a 1/2in port matches existing plumbing. The 100 cc bowl captures condensate from the diversion filter, and the semi-auto drain lets operators empty it during routine checks.
Test rig air supply
Provide filtered air to a benchtop test fixture that operates below 0.4 MPa. The 880 g body mounts securely on a frame, and the included bracket simplifies installation without relying on tubing support.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40015LNK the Right Air-Prep Unit?
Choose the GAFR400 body when your line needs 1/2in ports and a 7000 L/min flow envelope at 0.7 MPa inlet, stepping up from the GAFR300's 3500 L/min envelope. The PC bowl and 40 um element are the standard build; the semi-auto drain requires manual attention while the automatic version suits unattended lines. The L-type regulation tops at 0.4 MPa, so verify your machine never needs more than that. The included bracket aids mounting, and the absent gauge means the 1/4in gauge connection is ready if you add one later. The PT thread carries the MPa/psi scale, and the reflux valve is fitted per the K code. If oil is needed downstream, order the matching GAFC400-15 combination instead. With a 1.0 MPa max supply, you have about 0.6 MPa 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 GAFR40015LNK FAQ
The GAFR40015LNK is a filter & regulator with a 1/2in port, working pressure range of 0.15-0.4 MPa (20-58 psi), maximum 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 40 um element, a 100 cc drain bowl, and weighs 880 g.
The N code after the port means no gauge is supplied. The GAFR400 body has a 1/4in gauge connection, so you can add a compatible pressure gauge later. Without one, the set pressure cannot be read directly on the unit.
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