Airtac GAFR Adjustable Filter Regulator GAFR400C15ASNW
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C15ASNW 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 materialMetal
- Drainautomatic
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR400C15ASNW
The GAFR400C15ASNW is a filter and regulator combined into a single body, so the incoming air is cleaned and then set to a steady outlet pressure without needing a separate filter plus regulator pair. This 1/2in version uses a metal bowl and a 5 um element, with a working range of 0.15-0.9 MPa (20-130 psi).
The diversion structure spins the air to drop liquid water and solid particles into the 100 cc drain bowl, while the balanced, self-locking regulator holds the set pressure as supply varies. At 880 g, this unit is a substantial mid-size component meant for a panel or frame mount, not for support from the tubing alone.
Airtac GAFR Adjustable Filter Regulator GAFR400C15ASNW Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C15ASNW |
|---|---|
| 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 | Metal |
| 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 | 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 GAFR400C15ASNW
| GAFR400 | GA400 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. 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. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 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. |
| (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 GAFR400C15ASNW Is Used
Precision valve control
Feed a bank of precision pneumatic valves that need clean, regulated air at a steady pressure. The 5 um element filters fine particles, and the balanced regulator holds the setpoint as the supply fluctuates.
Machine tool header
Mount this 1/2in unit on a machine tool header to supply a consistent pressure to multiple actuators. The automatic drain clears condensate without manual attention, and the metal bowl suits a fixed industrial installation.
Test rig supply
Use it on a test rig where the outlet pressure must stay stable while the inlet pressure varies. The self-locking knob resists drift from vibration, keeping the set pressure reliable during a long test sequence.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C15ASNW the Right Air-Prep Unit?
Choose the GAFR400 body when you need a 1/2in port and a flow envelope plotted to 7000 L/min at 0.7 MPa inlet; it steps up from the GAFR300's 3500 L/min envelope when the line demands more capacity. The metal bowl (C) is a build choice, and the 5 um element (W) traps finer particles than the standard 40 um for precision valves or instrument air. This model has an automatic drain (A), so it suits unattended or wet lines, and the mounting bracket is included. There is no gauge fitted (N), so the 1/4in gauge connection is available if you add one later; the PT thread carries an MPa/psi scale. If the downstream line needs lubrication, order the matching GAFC400-15 combination instead, since this unit does not add oil. The 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 (1/2" 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 GAFR400C15ASNW FAQ
The GAFR400C15ASNW 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), proof pressure of 1.5 MPa (215 psi), and a temperature range of -5 to 70 C. It has a 100 cc drain bowl, weighs 880 g, and uses a 5 um element.
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 gauge later to read the outlet pressure. Without a gauge, the set pressure cannot be read directly on the unit.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC Air-Preparation Units
Request a Quote for Airtac GAFR Adjustable Filter Regulator GAFR400C15ASNW
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.