The AirTAC AirTAC GFR30010AJF3WT Filter Regulator NPT 3/8 5 um 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.
The AirTAC GFR300 is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single body. This configuration is the 300 size with a 3/8 in NPT port, a 5 um filter element, and an automatic drain that ejects collected condensate without operator attention. An embedded square gauge scaled in bar is fitted, and the standard regulator covers 0.15-0.9 MPa (20-130 psi). The polycarbonate bowl lets you see the liquid level at a glance.
This is a genuine AirTAC part. The G-series filter regulators span four sizes (200/300/400/600) with ports from 1/8 to 1 in, a choice of manual, automatic or differential-pressure drains, 40 um or 5 um elements, and MPa, psi or bar gauge scales. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application on request.
| Model | AirTAC GFR30010AJF3WT Filter Regulator NPT 3/8 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT 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 — square, 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.
| 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). |
| F | Gauge shape: Square. 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. |
| T | NPT 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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Feeds filtered, pressure-stabilised air to the tool-clamp and pallet-changer circuits of a CNC machining centre, with the 5 um element protecting the machine's pilot valves from water and fine particles carried in shop air.
Sits at the drop of a packaging conveyor to condition and regulate air for the cylinders that raise, clamp and seal cartons, while the automatic drain keeps condensate out of the line across multi-shift running without daily bowl draining.
Provides clean, precisely set air to a test bench or pilot rig where instruments and small actuators need a stable supply, and the bar-scaled square gauge gives a direct local reading of the set pressure.
Size and port set the capacity: the 300 frame with a 3/8 in NPT port sits mid-range in the GFR line, one step above 1/4 in and below 1/2 in, so move up or down a size if your line flow demands it. The 5 um element (code W) suits air that feeds precision valves and cylinders; the standard 40 um element is enough for general shop air. The automatic drain (code A) suits unattended duty, while manual and differential-pressure drains are the other catalogue choices. This unit is fitted with a square gauge scaled in bar (MPa and psi scales are order options), comes without a mounting bracket (code J), and carries an NPT thread; PT and G (BSPP) are the other thread options. Because flow is published as curves rather than a single rated figure, send us your application details and we will confirm 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 G-series as curves rather than a single rated figure, so we do not quote a number here. Send us your application details - line pressure, downstream demand and duty - and we will confirm the flow and the full datasheet for this exact model on request.
In the code GFR30010AJF3WT, W is the 5 um filter grade (the catalogue standard is 40 um) and A is the automatic drain, which ejects collected condensate on its own instead of relying on an operator. Both are order choices: 40 um elements and manual or differential-pressure drains are available if your application prefers them.
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.