Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJWK 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 gaugeCircular, MPa / psi
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJWK
The GAFR400C15ASJWK is a filter and pressure regulator combined into one body, eliminating the need for separate components. It handles 1/2" ports and delivers a regulated output from 0.15 to 0.9 MPa (20-130 psi) while filtering the air stream to 5 um.
Its metal bowl holds 100 cc of condensate, and the unit weighs 880 g. The integrated diversion structure spins the air to separate liquid water and solid particles, protecting downstream equipment. This model includes an automatic drain and a circular gauge with an MPa/psi scale.
Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJWK |
|---|---|
| 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 | Not included (J) |
| Weight | 880 g |
Specifications follow the official AirTAC GAFR catalogue (pages 235-236). Air must not freeze in the unit. The fitted circular gauge reads in MPa / psi, set by the PT thread code. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJWK
| 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). |
| J | No bracket (J) — supplied without the mounting bracket. |
| (blank) | Circular pressure gauge fitted. |
| 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 GAFC400-15 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 GAFR400C15ASJWK Is Used
CNC coolant systems
Feed a consistent 0.15-0.9 MPa air supply to CNC coolant valves and actuators, with the 5 um element protecting precision metering orifices from fine debris.
Machine tool headers
Mount on a 1/2" machine header to supply filtered, regulated air to multiple pneumatic cylinders and tool changers, with the automatic drain handling condensate from wet shop lines.
Packaging line automation
Use on a packaging line to power grippers and pushers, where the metal bowl resists impacts and the 5 um filtration protects sensitive solenoid valves from wear.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJWK the Right Air-Prep Unit?
Choose the GAFR400 body for medium-flow applications needing 1/2" ports; it offers a flow envelope plotted to 7000 L/min at 0.7 MPa inlet, a step up from the GAFR300's 3500 L/min. The metal bowl (C) suits demanding environments, while the 5 um element (W) captures finer particles than the standard 40 um. This unit has an automatic drain (A) for unattended operation, and the J code means no mounting bracket is included. The K code indicates a reverse-flow valve is fitted. The gauge reads in MPa/psi with PT threads. For lines needing oil downstream, order the matching GAFC400-15 combination instead. With a 1.0 MPa max supply, you have 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 GAFR400C15ASJWK FAQ
The GAFR400C15ASJWK operates from 0.15 to 0.9 MPa (20-130 psi) with a maximum supply of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It is rated for -5 to 70 C and must not freeze. The unit has a 100 cc drain bowl and weighs 880 g.
The K code indicates a reverse-flow (reflux) valve is fitted to the GAFR400C15ASJWK. This is an ordering difference from models without the K code. The catalogue does not detail its function, so consult the datasheet for operational specifics.
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