Airtac GAFR Adjustable Filter Regulator GAFR400C15SJN
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C15SJN 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 gaugeNot fitted
- Weight880 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAFR Adjustable Filter Regulator GAFR400C15SJN
The GAFR400C15SJN is a filter & regulator in one body: it spins incoming air to separate liquid water and trap solid particles, then a balanced regulator holds a steady outlet pressure as supply varies. This 1/2in unit works in the 0.15-0.9 MPa (20-130 psi) range with a 40 um element, and has no lubricator - it only filters and regulates.
Its metal bowl holds 100 cc of condensate, and the 880 g body needs a proper panel or frame mount rather than support from the tubing. The pressed-in self-locking knob resists set-pressure drift from vibration, keeping the outlet stable in industrial environments.
Airtac GAFR Adjustable Filter Regulator GAFR400C15SJN Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C15SJN |
|---|---|
| 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. 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 GAFR400C15SJN
| 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. |
| N | No pressure gauge; 1/4" gauge connection. |
| (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 GAFR400C15SJN Is Used
Machine tool circuits
Feed a 1/2in line to a CNC machine's clamping system, where the 40 um element protects solenoid valves and the stable regulated pressure keeps clamping force consistent.
Assembly station headers
Mount this GAFR400 on a multi-station assembly bench to supply filtered air at a set pressure to multiple pneumatic tools, with the 100 cc bowl reducing drain frequency during shifts.
Test rig air supply
Use it on a test bench where you need clean, regulated air at a known pressure for fixture actuation, relying on the balanced regulator to hold the setpoint as shop pressure fluctuates.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C15SJN the Right Air-Prep Unit?
Choose the GAFR400 body for 1/2in ports and a 100 cc drain bowl, stepping up from the GAFR300's 60 cc bowl when you need longer intervals between draining. The metal bowl (C) suits demanding build environments, while the semi-auto plus manual drain gives you both automatic purging and a manual override. This J model omits the mounting bracket for panel-mount installations, and the N code means no gauge is supplied - the 1/4in gauge connection is ready if you add one later. The standard S type covers 0.15-0.9 MPa, and the 40 um element handles general shop air; choose the W option for 5 um filtration if you feed precision valves. With a 1.0 MPa max supply, you have about 0.1 MPa above the 0.9 MPa top of the regulated range, so plan your inlet pressure near 1.0 MPa for full output.
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 GAFR400C15SJN FAQ
This filter & regulator has 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 operates from -5 to 70 C. The metal drain bowl holds 100 cc, the unit weighs 880 g, and it uses a 40 um element with a 1/4in gauge connection.
The N code after the port means no gauge is fitted - you can add one later via the 1/4in connection if you need to read the set pressure. The J code omits the mounting bracket, which suits panel-mount installations or setups that already have a bracket in place. Both options reduce initial cost when you don't need those components.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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