Airtac GAFR Adjustable Filter Regulator GAFR40015SJNW
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40015SJNW 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 5 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 size1/2"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 µm
- Bowl materialPC
- Drainsemi-auto + manual
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR40015SJNW
The GAFR40015SJNW is a filter and regulator combined into a single body, removing the need for separate GAF and GAR units. This 1/2in port model handles air up to 0.15-0.9 MPa (20-130 psi) and uses a 5 um element to trap fine particles.
Its diversion structure spins incoming air to separate liquid water and solid debris into the 100 cc drain bowl. The balanced regulator holds the set pressure steady as supply varies, and the pressed-in self-locking knob resists drift from vibration. No lubricator is fitted or available on this unit.
Airtac GAFR Adjustable Filter Regulator GAFR40015SJNW Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40015SJNW |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 1/2" (PT thread) |
| Filtering grade | 5 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 | 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 GAFR40015SJNW
| 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. |
| 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; 1/4" gauge connection. |
| W | Filtering grade 5 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 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 GAFR40015SJNW Is Used
Precision valve control
Feed a bank of precision pneumatic valves on a machining center where the 5 um element protects fine internal passages from particle wear.
Machine tool header
Supply a 1/2in header feeding several actuators on a single machine station, with the 100 cc bowl handling condensate between shifts.
Test bench air
Provide regulated air to a laboratory test bench where the balanced regulator keeps outlet pressure stable as the shop supply fluctuates.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40015SJNW the Right Air-Prep Unit?
Choose the GAFR400 for medium-flow lines where a 1/2in port and 880 g mass suit a fixed installation; the mounting bracket is omitted here (J), so plan for a panel mount or existing bracket. The 5 um element (W) filters finer than the standard 40 um, making it suitable for precision valves, though it will need more frequent service. The semi-auto and manual drains are both fitted, giving you a choice between automatic purge and manual operation. The PT thread with MPa/psi gauge scale is standard; no gauge is supplied (N), but the 1/4in gauge connection is ready for one. If oil is needed downstream, order the matching GAFC400-15 combination instead. Remember 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 reach the full regulated output.
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 GAFR40015SJNW FAQ
The GAFR40015SJNW is a filter & regulator with a 1/2in port, working pressure range of 0.15-0.9 MPa (20-130 psi), max pressure of 1.0 MPa (145 psi), and proof pressure of 1.5 MPa (215 psi). It operates in temperatures from -5 to 70 C and must not freeze. The drain bowl holds 100 cc and the unit weighs 880 g. It uses a 5 um element and has both semi-auto and manual drains.
The J code means the mounting bracket is omitted, so you must use a panel mount or existing bracket. The N code means no gauge is supplied, but the 1/4in gauge connection is ready for adding one. The set pressure cannot be read without fitting a gauge, so plan to add one if you need to monitor outlet pressure.
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