AirTAC GFR300-10 Filter Regulator (GFR30010AJC3W)
The AirTAC AirTAC GFR300-10 Filter Regulator (GFR30010AJC3W) is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT3/8" ports, a automatic drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
- TypeFilter regulator
- Port sizePT3/8"
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 µm
- DrainAutomatic drain
- Bowl materialPC
- Pressure gaugeFitted
- ThreadPT
- 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 GFR300-10 Filter Regulator (GFR30010AJC3W)
The GFR30010AJC3W is an AirTAC GFR-series filter regulator: filtration and pressure regulation combined in one body. This 300-size unit carries a 3/8in PT port, a 5 um filter element (finer than the standard 40 um grade), an automatic drain that ejects collected condensate on its own, and a round external gauge reading in bar. With this automatic-drain configuration the regulator setting range is 0.15-0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the polycarbonate bowl suits ambient temperatures from -5 to 70 C, non-freezing. The J suffix means no mounting bracket is fitted.
This is a genuine AirTAC part. The G-series filter regulator range spans 200, 300, 400 and 600 sizes with ports from 1/8in to 1in, and drain type, filter grade, gauge scale and thread (PT standard, G and NPT as catalogue options) can all be specified. Rated flow is published as curves rather than a single figure, so contact us and we will confirm flow and full datasheet figures for your application.
AirTAC GFR300-10 Filter Regulator (GFR30010AJC3W) Technical Specifications
| Model | AirTAC GFR300-10 Filter Regulator (GFR30010AJC3W) |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (PT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, bar scale |
| Reflux valve | Not fitted |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
Model Code: AirTAC GFR300-10 Filter Regulator (GFR30010AJC3W)
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| 10 | Port size PT3/8". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| A | Drain: Automatic drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
Size Class
- GFR200PT1/8" - PT1/4"
- GFR300PT1/4" - PT1/2"
- GFR400PT3/8" - PT1/2"
- GFR600PT3/4" - PT1"
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR300 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Where the AirTAC GFR300-10 Filter Regulator (GFR30010AJC3W) Is Used
CNC machining center air supply
Feed the tool-changer and clamp actuators on a CNC machining center through this 3/8in filter regulator, giving the machine's control valves clean 5 um air held at a steady preset pressure.
Laboratory pneumatic test bench
On a lab bench that cycles air cylinders for fixture testing, the bar-scale round gauge lets technicians read and set supply pressure directly, while the auto drain keeps condensate out of precision instruments.
Pneumatic control valve manifold
Mount this unit ahead of a bank of pneumatic directional control valves on a process skid so each valve station receives filtered, regulated air with condensate drained automatically.
Is the AirTAC GFR300-10 Filter Regulator (GFR30010AJC3W) the Right Unit?
Step up or down in size to match your line: 300 is the 3/8in step of the G-series, with 200 (1/4in and below) and 400/600 (1/2in and up) either side for higher or lower flow duty. This unit is already specified with automatic drain, a 5 um element and a round bar-scale gauge; the alternatives are differential-pressure or manual drain, the standard 40 um element, a square gauge in MPa or psi, or no gauge at all. PT thread is the standard; G (BSPP) and NPT versions are orderable options, and a bracket can be added if you want panel mounting.
Flow is published as curves, not a single rated number, so before ordering send us your application conditions and we will confirm sizing against the datasheet.
Quick checklist
- ✓ Body size for your peak flow (PT3/8" here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Thread PT, G (BSPP) or NPT
- ✓ Oil needed downstream? Use GFC instead
Installation & Maintenance Notes
- check Mount vertically, bowl down, following the airflow arrow.
- check One body does the filtering and the regulating — no separate regulator needed.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Adjust only within 0.15 - 0.9 MPa (20 - 130 psi).
- check Drain condensate before the bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC GFR300-10 Filter Regulator (GFR30010AJC3W) FAQ
AirTAC publishes flow for this series as characteristic curves rather than a single rated figure, so there is no one l/min or SCFM number we can quote honestly. Send us your inlet pressure, set pressure and expected demand, and we will confirm the flow data from the datasheet before you order.
This code has an automatic drain (A), and with that drain type the regulator adjustment range is 0.15-0.9 MPa (20-130 psi). GFR versions specified with manual drain instead have a wider setting range of 0.05-0.9 MPa (7-130 psi), so if you need to regulate below 0.15 MPa, choose a manual-drain variant such as the M-suffix code.
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Request a Quote for AirTAC GFR300-10 Filter Regulator (GFR30010AJC3W)
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.