The AirTAC GFR300C10AJNWT AirTAC Filter Regulator NPT3/8, 5 um is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has See datasheet ports, a differential-pressure 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.
The AirTAC GFR300C10AJNWT is a GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built around 3/8 in NPT ports in the 300 size, with the fine 5 um filter element (code W) instead of the standard 40 um grade, and an automatic drain that bleeds collected condensate from the polycarbonate bowl without manual attention. The standard regulator covers a setting range of 0.15-0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and the unit is rated for -5 to 70 C in non-freezing conditions. No pressure gauge is fitted (code N) and no mounting bracket is included, so plan for a separate gauge and bracket if your panel needs them.
This is a genuine AirTAC part from the GFR filter-regulator line, which spans the 200, 300, 400 and 600 sizes with a choice of ports, thread standards (PT as standard, G and NPT to order), drain types, filter grades, gauge options and bracket choices. Because AirTAC publishes flow only as curves rather than a single rated figure, we confirm the exact flow and datasheet figures for your application on request before you order.
| Model | GFR300C10AJNWT AirTAC Filter Regulator NPT3/8, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard 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.
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| C1 | Port size See datasheet. This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 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.
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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C1 (two-unit set) |
Feeding filtered, regulated air to the tool-change clamps and pneumatic valves on a CNC machining center, where the 5 um element protects close-tolerance actuators from particulate and the automatic drain keeps condensate out of an unmanned cell.
Supplying the cylinders that divert, clamp and eject cartons on a packaging conveyor line, with the regulator holding a steady downstream setting so stops and pushes repeat consistently through a shift.
Conditioning the air feeding grippers and fill-head actuators on a bottling line, where the automatic drain handles the moisture load of a humid production hall and no gauge is needed because the setting is locked at the panel.
Start with the port step: the 300 size with 3/8 in NPT ports sits in the middle of the GFR range (200/300/400/600), so step up a size if your line's flow demand grows beyond what a 3/8 in circuit carries - ask us to check the flow curve against your consumption before committing. Choose the drain to match access: automatic (this unit) suits enclosed or infrequently visited installations, manual suits attended stations, and the differential-pressure default is the baseline. On filtration, 40 um is the standard element and 5 um (this unit, code W) is the finer option for sensitive downstream components. Gauges are optional - this configuration ships without one, and square or round gauges with MPa, psi or bar scales can be ordered. Thread is PT as the catalogue standard, with G (BSPP) and NPT as order options, and brackets are optional (not included here).
One honest note on sizing: AirTAC publishes flow as curves, not a single rated number, so we do not quote a rated flow figure. Send us your application details and we will confirm the sizing against the datasheet before you order.
Quick checklist
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 publishes flow for the GFR series as curves rather than a single rated figure, so we do not quote a rated flow number for this unit. Tell us your port size, working pressure and estimated air consumption, and we will confirm the flow from the datasheet and check the sizing for your application on request.
The automatic drain (code A) expels collected condensate from the bowl on its own, so it suits panels and enclosures that are not checked daily; a manual-drain version is the alternative where an operator bleeds the bowl routinely. The N in the code means no pressure gauge is fitted, so if you want to read the downstream setting at the unit, order a square or round gauge (MPa, psi or bar scale) alongside it. The 5 um element (code W) is the finer option over the standard 40 um grade.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
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.