Airtac GAFR Adjustable Filter Regulator GAFR40015SJK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40015SJK 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 materialPC
- Drainsemi-auto + manual
- Pressure gaugeCircular, MPa / psi
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR40015SJK
The GAFR40015SJK is a filter and regulator combined into a single body, removing the need for separate GAF and GAR units. It handles 1/2in ports and delivers a regulated output from 0.15 to 0.9 MPa (20-130 psi) with a 40 um element.
This 880 g unit spins incoming air to separate liquid water and solid particles into its 100 cc condensate bowl, while a balanced, self-locking regulator keeps the outlet pressure steady as supply varies. The pressed-in knob resists drift from vibration, and the included circular gauge shows the set pressure on an MPa/psi scale.
Airtac GAFR Adjustable Filter Regulator GAFR40015SJK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40015SJK |
|---|---|
| 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 | 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. 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 GAFR40015SJK
| 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. |
| (blank) | Circular pressure gauge fitted. |
| (blank) | Filtering grade 40 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 GAFR40015SJK Is Used
Machine tool actuation
Feed a single-axis positioning table or a clamping fixture on a CNC machine, where the 1/2in port and stable regulated pressure keep cycle times consistent.
Assembly line workstations
Supply a pneumatic screwdriver or a pick-and-place arm at a dedicated bench, with the 100 cc bowl reducing how often an operator must check condensate.
Test rig air supply
Provide clean, regulated air to a leak tester or a pressure gauge calibration setup, where the 40 um element and steady outlet pressure protect sensitive instruments.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40015SJK the Right Air-Prep Unit?
Choose this GAFR400 body for medium-flow lines needing a 1/2in port and the 100 cc drain bowl, which holds about 1.7x the condensate of a GAFR300's 60 cc bowl before needing a drain. The PC bowl suits general-purpose use, while the semi-auto plus manual drain gives you both automatic dumping and a manual override. This model has no mounting bracket (J), so plan for a panel mount or an existing bracket, and the 40 um element handles standard shop air.
The standard pressure type covers 0.15-0.9 MPa, and the PT thread means the gauge reads in MPa/psi. The fitted reverse-flow (reflux) valve is an ordering difference to note. If your line needs oil downstream, order the matching GAFC400-15 combination instead. Max supply 1.0 MPa 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 GAFR40015SJK FAQ
The GAFR40015SJK is a filter and regulator with a 1/2in port, a working pressure range of 0.15-0.9 MPa (20-130 psi), and a maximum pressure of 1.0 MPa (145 psi). Proof pressure is 1.5 MPa (215 psi), and the operating temperature range is -5 to 70 C. It has a 100 cc drain bowl and weighs 880 g.
The J code means the mounting bracket is omitted. This is for installations where the unit is panel-mounted or secured to an existing frame, so the included bracket would be redundant. You can still add a gauge later via the 1/4in gauge connection if needed.
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