Airtac GAFR Adjustable Filter Regulator GAFR40015ASNK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40015ASNK 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
- Drainautomatic
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR40015ASNK
The GAFR40015ASNK is a filter and regulator combined into a single body, so incoming air is first spun to separate liquid water and solid particles, then regulated to a steady outlet pressure. This 1/2in model operates from 0.15 to 0.9 MPa (20-130 psi) with a 40 um element, and it weighs 880 g, placing it in the mid-range size class.
A balanced, self-locking regulator holds the set pressure as supply varies, and the pressed-in knob resists drift from vibration. The automatic drain clears condensate without manual intervention, and the 100 cc bowl is the largest service point on this unit.
Airtac GAFR Adjustable Filter Regulator GAFR40015ASNK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40015ASNK |
|---|---|
| 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 | 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 | Included |
| 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 GAFR40015ASNK
| 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". |
| A | Drain: Automatic drain. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 psi). This body offers Standard (S) or Lower pressure (L). |
| (blank) | Mounting bracket included. |
| N | No pressure gauge; 1/4" gauge connection. |
| (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 GAFR40015ASNK Is Used
CNC coolant lines
Feed a 1/2in line to a CNC machine's coolant system, where the automatic drain handles condensation from high-humidity shop air and the 40 um element protects downstream solenoid valves.
Assembly station headers
Supply a multi-station assembly bench with a 1/2in header, using the 100 cc bowl to reduce drain checks between shifts and the balanced regulator to keep pneumatic tools at steady pressure.
Test rig air supply
Power a pneumatic test fixture with a 1/2in port, where the 7000 L/min envelope at 0.7 MPa inlet supports multiple cylinders and the self-locking knob holds the setpoint during vibration.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40015ASNK the Right Air-Prep Unit?
Choose this GAFR400 for 3/8in or 1/2in lines where a 100 cc drain bowl and 7000 L/min flow envelope at 0.7 MPa inlet suit the demand; step up to the GAFR500 for a 3/4in port and 8000 L/min envelope, or down to the GAFR300 for 1/4in to 1/2in ports with a 60 cc bowl. The PC bowl suits general dry indoor use, while the automatic drain handles wet or unattended lines, and the included bracket simplifies panel mounting. The 40 um element is the standard grade, and the PT thread carries an MPa/psi gauge scale, though this unit ships without a gauge - its 1/4in connection is ready for one. The reverse-flow (reflux) valve is fitted as an ordering difference, and if oil is needed downstream, order the matching GAFC400-15 combination. 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 GAFR40015ASNK FAQ
Pressure range is 0.15-0.9 MPa (20-130 psi), max pressure is 1.0 MPa (145 psi), proof pressure is 1.5 MPa (215 psi), temperature range is -5 to 70 C. The drain bowl holds 100 cc and the unit weighs 880 g, with a 1/2in port and 40 um element.
The K code indicates a reverse-flow (reflux) valve is fitted, which is an ordering difference from the standard unit. The N code means no gauge is supplied, but the 1/4in gauge connection is present for adding one later.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC Air-Preparation Units
Request a Quote for Airtac GAFR Adjustable Filter Regulator GAFR40015ASNK
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.