The AirTAC GFR30008LF1WTK AirTAC Filter Regulator NPT1/4 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 PT1/4" 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 GFR30008LF1WTK is a GFR300-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one compact body. This configuration is built for a 1/4 in NPT port, is the low-pressure regulator type, carries the 5 um filter element (code W), and drains condensate by differential pressure. It comes with the embedded square pressure gauge on the MPa scale, a reverse/check valve fitted on the regulator, and a mounting bracket. The polycarbonate bowl and body are rated for a maximum inlet pressure of 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, configurable by drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um optional), gauge style and scale, thread (PT standard, with G and NPT as order options), reverse/check valve and bracket. Flow is published only as curves rather than a single rated figure, so ask us to confirm the datasheet and flow figures for your application on request.
| Model | GFR30008LF1WTK AirTAC Filter Regulator NPT1/4 |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure 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, 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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. |
|---|---|
| 08 | Port size PT1/4". 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)). |
| L | Low-pressure 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 · PT1/4" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Filtering and regulating the air that actuates pneumatic clamps on an assembly fixture, where the low-pressure regulator type supplies a reduced pressure to the clamp cylinders and the 5 um element protects the directional-valve seals.
Supplying clean, regulated air to the cylinders that raise gates and stopers along a packaging conveyor, with the fitted reverse/check valve holding the downstream side if the main supply dips.
Conditioning shop air into a filtered, low-pressure supply for instrument and actuator testing on a lab bench, with the embedded MPa gauge giving a direct local readout of the set pressure.
Size and port are the first choice: GFR300 takes a 1/4 in port, and the 200/300/400/600 steps move up in port size and flow capacity, so match the step to the air your circuit actually uses. From there the decodable options are: low-pressure regulator type (this unit) versus standard; 5 um filtration (this unit, code W) versus the 40 um standard; differential-pressure drain (this unit) versus automatic or manual; square MPa gauge (this unit, code F1) with psi or bar scales available; NPT thread (this unit, code T) against PT standard or G; reverse/check valve fitted (code K); and bracket included. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application before ordering.
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 curves rather than a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow and datasheet figures for GFR30008LF1WTK on request before you order.
L is the low-pressure regulator type, F1 is the embedded square gauge with MPa scale, W is the 5 um filter element (40 um is the standard), T is the NPT thread (PT is the standard thread and G is also available to order), and K means a reverse/check valve is fitted. The drain is the differential-pressure type and a mounting bracket is included.
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.