Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJW
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJW 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 GAFR400C15ASJW
The GAFR400C15ASJW is a filter & regulator with both functions in one body: it spins incoming air to separate liquid water and trap solid particles, then a balanced regulator holds the outlet steady as supply pressure varies. This 1/2in unit carries a 5 um element and a metal bowl, with no lubricator anywhere in the design.
Its working range is 0.15-0.9 MPa (20-130 psi) with a 1.0 MPa (145 psi) maximum and a 1.5 MPa (215 psi) proof pressure, operating from -5 to 70 C. The 100 cc drain bowl and 880 g mass place it in the mid-size class, a step above the GAFR300's 60 cc bowl and 500 g body.
Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJW Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJW |
|---|---|
| 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 GAFR400C15ASJW
| 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. |
| (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 GAFR400C15ASJW Is Used
Machine tool circuits
Feed a 1/2in header on a CNC or lathe where the 5 um element protects precision valves and the automatic drain handles condensate without daily attention.
Assembly line stations
Supply a multi-station assembly fixture where the 100 cc bowl reduces drain frequency and the metal bowl suits a shop-floor environment.
Test benches
Regulate air for a pneumatic test rig where the balanced regulator keeps outlet pressure stable as shop supply fluctuates.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJW the Right Air-Prep Unit?
Choose the GAFR400 body when 1/2in ports and a 100 cc condensate bowl suit your line; the flow curve plots to 7000 L/min at 0.7 MPa inlet, roughly double the GAFR300's 3500 L/min envelope. This model has a metal bowl, an automatic drain for unattended wet lines, no mounting bracket (J), a fitted gauge with MPa/psi scale, and a 5 um element for finer filtration than the standard 40 um. If oil is needed downstream, order the matching GAFC400-15 combination instead. 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 GAFR400C15ASJW FAQ
Working pressure is 0.15-0.9 MPa (20-130 psi), maximum pressure is 1.0 MPa (145 psi), proof pressure is 1.5 MPa (215 psi), and temperature range is -5 to 70 C. The drain bowl holds 100 cc and the unit weighs 880 g.
The J means the mounting bracket is not included. You would use this when mounting to an existing panel or frame rather than relying on the included bracket that comes with blank codes.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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