Airtac GAFR Adjustable Filter Regulator GAFR40010LNWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40010LNWK 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 5 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 size3/8"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade5 µm
- Bowl materialPC
- Drainsemi-auto + manual
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR40010LNWK
The GAFR40010LNWK is a filter & regulator that combines air filtration and pressure regulation in a single body, eliminating the need for separate GAF and GAR units. It handles a 3/8in port and delivers a lower pressure range of 0.15-0.4 MPa (20-58 psi) with a 5 um element for finer particle removal.
This model features a 100 cc condensate bowl and weighs 880 g, placing it in the GAFR400 size class. The diversion structure spins incoming air to separate liquid water and solid particles, while the balanced, self-locking regulator maintains a stable outlet pressure. A reverse-flow (reflux) valve is fitted as an ordering difference.
Airtac GAFR Adjustable Filter Regulator GAFR40010LNWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40010LNWK |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 3/8" (PT thread) |
| Filtering grade | 5 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 GAFR40010LNWK
| 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). |
| 10 | Port size 3/8". 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. |
| W | Filtering grade 5 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 GAFC400-10 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 | GAFR400 · 3/8" · curve to 7000 L/min |
|---|---|
| One size down | GAFR300 |
| One size up | GAFR500 (curve to 8000 L/min) |
| Add a lubricator | GAFC400-10 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR40010LNWK Is Used
Precision valve control
Feed a bank of precision pneumatic valves that need clean, regulated air at a consistent lower pressure, with the 5 um element protecting sensitive internals from fine particulate.
Light assembly station
Supply a light assembly station's pneumatic hand tools and small actuators, where the 3/8in port and 100 cc bowl handle moderate flow and condensate without frequent draining.
Instrument air supply
Provide filtered, regulated air to laboratory instruments or gauging equipment that requires a stable, lower pressure output and protection from water and solid contaminants.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40010LNWK the Right Air-Prep Unit?
Choose the GAFR400 body for a 3/8in port and a 100 cc drain bowl, which holds about 1.7x the condensate of the GAFR300's 60 cc bowl, reducing drain frequency. The PC bowl is standard and shares the same 1.0 MPa max and -5 to 70 C rating as metal or nylon options, so select based on your environment and confirm compatibility for aggressive surroundings. This unit ships with both semi-auto and manual drains, the mounting bracket is included, and the 5 um element traps finer particles than the standard 40 um, though it may require more frequent service. The L-type regulation tops out at 0.4 MPa, and no gauge is supplied, so the 1/4in gauge connection is ready for an add-on if you need to read set pressure. The PT thread matches a MPa/psi gauge scale, and the K code confirms the reverse-flow valve is attached. If oil is needed downstream, order the matching GAFC400-10 combination instead. With a 1.0 MPa max supply, you have about 0.6 MPa of headroom above the 0.4 MPa top of the regulated range.
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 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 GAFC400-10 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR40010LNWK FAQ
The GAFR40010LNWK is a filter & regulator with a 3/8in port, a pressure range of 0.15-0.4 MPa (20-58 psi), and a maximum pressure of 1.0 MPa (145 psi). Proof pressure is 1.5 MPa (215 psi), and the operating temperature range is -5 to 70 C. It has a 100 cc drain bowl and weighs 880 g, with a 5 um filter element.
The K code indicates the reverse-flow (reflux) valve is fitted to the GAFR40010LNWK. It is an ordering difference from models without the K code; the catalogue does not detail its function in our data.
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