The AirTAC GFR30010JF3WTK AirTAC Filter Regulator NPT3/8 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 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 GFR30010JF3WTK is a size-300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built with NPT3/8 ports, a 5 um filter element (finer than the 40 um standard), a differential-pressure drain, an embedded square gauge scaled in bar, and a reverse/check valve that holds downstream pressure when the supply is interrupted. It ships without a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator adjustment range for this drain type is 0.15-0.9 MPa (20-130 psi), and the operating temperature range is -5 to 70 C (non-freezing). The polycarbonate bowl suits the 300 size; only the 600 size uses an aluminium alloy bowl.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, gauge scale options, PT, G or NPT threads, and bracket or no-bracket mounting. Published flow data appears as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR30010JF3WTK AirTAC Filter Regulator NPT3/8 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, bar 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". |
| (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. |
| 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. |
| 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) |
Feeds clean, pressure-controlled air to the tool-change and clamping circuits of a CNC machining centre, with the 5 um element protecting fine spool valves and the check valve holding the clamp circuit if shop air drops.
Conditions and regulates the air driving conveyor stop-gate and diverting cylinders on a packaging line, with the bar-scaled gauge giving operators a visible setpoint at the machine.
Serves a spray-booth air drop where water and fine particulate must be stripped before the gun and the regulator holds a steady atomising pressure; the check valve prevents backflow at the drop when the header is vented.
Choose the size and port step against the air consumption of the machine or line you are supplying - the 300 size here carries a 3/8 inch NPT port, and larger sizes give larger ports and more flow. This unit already fixes several choices: 5 um filtration (select W when finer than the 40 um standard element is needed), a differential-pressure drain (automatic drain and manual drain are the other catalogue options), a square gauge scaled in bar (MPa and psi scales, and an external round gauge, are alternatives), a reverse/check valve, no bracket, and NPT thread where PT is the standard and G is the other order option. Flow for this family is published as curves, not a single rated figure, so before ordering send us your application details and we will confirm sizing and the datasheet figures on request.
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 family as curves rather than a single rated number, so we do not quote a rated flow figure. Send us your application details and we will confirm the datasheet flow curve and sizing for this 3/8 inch NPT unit on request.
The W in the code GFR30010JF3WTK selects the optional 5 um filter element instead of the 40 um standard, and the K selects a built-in reverse/check valve that holds downstream pressure when the supply is interrupted. Both are catalogue options; the 40 um standard version without the valve is available if your application does not need 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.