The AirTAC GFR30010AF1WTK AirTAC Filter Regulator 3/8in NPT 5um 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 GFR300-10T is a size-300 filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady, in a single compact body. This configuration is a 3/8 in NPT ported unit with 5 um filtration (the finer of the two catalogue grades), an automatic drain that expels collected condensate without manual attention, a standard regulator with a 0.15-0.9 MPa (20-130 psi) adjustment range, an embedded square MPa gauge, and a reverse/check valve fitted. The polycarbonate bowl suits this size, and the mounting bracket is included.
This is a genuine AirTAC part. The GFR line runs from size 200 to 600 with port sizes from 1/8 in to 1 in, with a choice of drain type, 40 um or 5 um filtration, gauge style and scale, PT, G or NPT thread, and check-valve options. Rated flow for this series is published as curves rather than a single figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR30010AF1WTK AirTAC Filter Regulator 3/8in NPT 5um |
|---|---|
| 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, MPa scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 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. |
| K | Reverse-flow (reflux) valve fitted. |
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) |
Feeding clean, pressure-stable air to a machining centre's tool-clamp and chip-clearing cylinders, where the 5 um grade protects the machine's directional valves and the check valve holds downstream pressure if the main supply dips.
A point-of-use station on a carton-forming line, regulating air to the case erector and sealer cylinders while the automatic drain keeps condensate out of the actuators on a line that runs unattended through shifts.
A workshop wall drop feeding impact wrenches and air ratchets, with the regulator set to the tool maker's working pressure and the 5 um element and auto drain keeping rust and water out of the tools.
Size and port set the capacity envelope: this is size 300 with a 3/8 in NPT port, one step up from the 1/4 in size-300 base, so step up to size 400 if your line may grow. Drain type is a real choice here: automatic (this unit) suits unattended duty, manual drain suits stations someone already walks past, and differential-pressure drain is the catalogue default. Filtration is 5 um on this unit versus the 40 um standard - choose 5 um for downstream valves, cylinders and instruments that tolerate less particulate. Gauge scale is MPa here; psi and bar scales and an external round gauge are options. PT is the standard thread; G and NPT are order-time specifications, as on this NPT unit. The bracket is included.
Because catalogue flow is published as curves rather than a single rated number, we cannot quote you one figure here - send us your application's flow and pressure requirements 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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as performance curves, not as a single rated number, so we do not quote one here. Tell us your required flow and working pressure and we will confirm the sizing against the datasheet for this 3/8 in NPT, size-300 unit before you order.
The W code in GFR30010AF1WTK selects the 5 um element, the finer of the two catalogue grades (40 um is the standard); it suits downstream valves, cylinders and instruments that tolerate less particulate. The A code selects an automatic drain, which expels collected condensate from the polycarbonate bowl on its own instead of waiting for a manual drain.
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.