Airtac GAFR Adjustable Filter Regulator GAFR400C15SJ
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C15SJ 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 40 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 grade40 µm
- Bowl materialMetal
- Drainsemi-auto + manual
- Pressure gaugeCircular, MPa / psi
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR400C15SJ
The GAFR400C15SJ is a filter & regulator combining both functions in one body, eliminating the need for separate GAF and GAR units. This 1/2in port model handles a standard 0.15-0.9 MPa (20-130 psi) range with a 40 um element, and its metal bowl suits demanding environments.
A balanced, self-locking regulator keeps the outlet steady as supply varies, while the diversion structure spins air to separate liquid water and solids into the 100 cc drain bowl. Weighing 880 g, this unit requires a proper panel or frame mount rather than support from tubing.
Airtac GAFR Adjustable Filter Regulator GAFR400C15SJ Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C15SJ |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| Bowl material | Metal |
| 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. 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 GAFR400C15SJ
| 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". |
| (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. |
| (blank) | Circular pressure gauge fitted. |
| (blank) | Filtering grade 40 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 GAFR400C15SJ Is Used
Machine tool circuits
Feed a precision drilling or milling fixture with clean, regulated air at a steady 0.15-0.9 MPa, using the 40 um element to protect sensitive valves.
Assembly line stations
Supply a multi-station assembly bench where the 100 cc bowl and 880 g mass suit a fixed frame, with the semi-auto drain for scheduled maintenance.
Test rigs
Power a pneumatic test jig requiring a stable outlet pressure, leveraging the balanced regulator to hold the setpoint as inlet conditions vary.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C15SJ the Right Air-Prep Unit?
Choose the GAFR400 body for medium-flow lines needing a 1/2in port and a 7000 L/min flow envelope at 0.7 MPa inlet, stepping up from the GAFR300's 3500 L/min. The metal bowl (C) is a build choice; the semi-auto plus manual drain requires periodic attention, and the J code means no bracket is included. The fitted circular gauge reads MPa/psi via the PT thread, and the 40 um element is the standard grade. 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 GAFR400C15SJ FAQ
This filter & regulator has a 1/2in port, standard 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 operates from -5 to 70 C. It has a 100 cc drain bowl and weighs 880 g.
Yes, the J code indicates no mounting bracket is included. You will need an existing bracket or a panel-mount solution for this 880 g unit, rather than supporting it from the tubing.
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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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