Airtac GAFR Adjustable Filter Regulator GAFR300N15SJNK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300N15SJNK 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 materialNylon
- Drainsemi-auto + manual
- Pressure gaugeNot fitted
- Weight500 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 GAFR300N15SJNK
The GAFR300N15SJNK is a filter and pressure regulator combined in a single body, cleaning incoming air and holding a steady outlet pressure without needing a separate filter plus regulator pair. This 1/2in version weighs 500 g and uses a nylon bowl, with a 60 cc condensate chamber that sets the service rhythm.
Its standard pressure range spans 0.15-0.9 MPa (20-130 psi), and the 40 um element traps solid particles while the diversion structure spins out liquid water. The pressed-in self-locking knob resists drift from vibration, keeping the setpoint stable on moving equipment.
Airtac GAFR Adjustable Filter Regulator GAFR300N15SJNK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300N15SJNK |
|---|---|
| Series | GAFR300 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 | Nylon |
| 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 | 60 cc |
| Bracket | Not included (J) |
| Weight | 500 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 GAFR300 is 1/8" if you add one. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR300N15SJNK
| GAFR300 | GA300 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| N | Bowl material: Nylon. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 15 | Port size 1/2". This body offers 08 = 1/4", 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; 1/8" 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 GAFC300-15 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 | GAFR300 · 1/2" · curve to 3500 L/min |
|---|---|
| One size down | GAFR200 |
| One size up | GAFR400 (curve to 7000 L/min) |
| Add a lubricator | GAFC300-15 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR300N15SJNK Is Used
Precision valve control
Feed a bank of pneumatic valves on a small assembly station where stable pressure and clean air protect sensitive pilot solenoids.
Machine tool circuits
Supply a single-axis positioning table or a clamping fixture that needs consistent force and filtered air without taking up much rail space.
Dedicated line branch
Protect a dedicated branch feeding a pick-and-place unit, where the 60 cc bowl handles condensate from a moderately wet supply line.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300N15SJNK the Right Air-Prep Unit?
Choose this GAFR300 when a 1/2in port and 500 g mass fit your line; the nylon bowl suits applications where a clear view of condensate is less critical than build choice. This model omits the mounting bracket (J), so plan for panel mounting or an existing bracket, and it ships without a gauge - the 1/8in gauge connection is ready if you add one later. The semi-auto plus manual drain gives you both automatic purging and a manual override, while the 40 um element handles general shop air; the reverse-flow (reflux) valve is fitted as an ordering difference. If your line needs oil downstream, order the matching GAFC300-15 combination instead. With a 1.0 MPa max supply, you have about 0.1 MPa above the 0.9 MPa top of the regulated range, so keep inlet pressure near the maximum to reach 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 60 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 500 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 GAFC300-15 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR300N15SJNK FAQ
It operates from 0.15-0.9 MPa (20-130 psi) with a 1.0 MPa (145 psi) maximum and 1.5 MPa (215 psi) proof pressure. Temperature range is -5 to 70 C, the drain bowl holds 60 cc, and the unit weighs 500 g. The port is 1/2in, the element is 40 um, and the bowl is nylon.
The N after the port code means no gauge is supplied; the 1/8in gauge connection is there if you add one later. The J code means the mounting bracket is omitted, so you mount it on a panel or use an existing bracket rather than the included one.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC Air-Preparation Units
Request a Quote for Airtac GAFR Adjustable Filter Regulator GAFR300N15SJNK
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.