The AirTAC GFR30015F1TK AirTAC Filter Regulator NPT1/2 Square Gauge 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 PT1/2" 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 GFR30015F1TK is a GFR-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure in one compact body. This configuration is the size 300 unit with 1/2 in NPT ports, a 40 um filter element, differential-pressure drainage, a built-in reverse (check) valve and the embedded square gauge with MPa scale. Operating temperature is -5 to 70 C (non-freezing) and maximum inlet pressure is 1.0 MPa (145 psi).
It is a genuine AirTAC part. The GFR line spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, filter grades of 40 um (standard) or 5 um (code W), automatic, manual or differential-pressure drains, and G or NPT thread options. Flow is published as curves rather than a single rating, so ask us to confirm sizing figures from the datasheet for your application.
| Model | GFR30015F1TK AirTAC Filter Regulator NPT1/2 Square Gauge |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT 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 — 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. |
|---|---|
| 15 | Port size PT1/2". 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). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 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 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Clean, regulated air to the tool-clamp cylinders on a machining centre, where the 40 um element keeps swarf and condensate out of the clamp circuit and the gauge lets setters verify clamp pressure at a glance.
Air preparation for the pneumatic cylinders and grippers on a carton sealer, holding a steady downstream pressure so case-flap folding stays consistent through the shift.
Conditioning the air feed to spray guns and air-assisted applicators, where water and particulate removal plus a stable regulated pressure support an even finish.
Choose the size and port step against the air demand of your circuit: this unit is size 300 with 1/2 in NPT ports. Regulation covers 0.15-0.9 MPa (20-130 psi) with the differential-pressure drain fitted here; a manual-drain variant widens the range down to 0.05 MPa (7 psi). The 40 um element suits general plant air; specify code W for 5 um where finer filtration is needed. Thread is NPT on this model (PT is the AirTAC standard; G and NPT are order options), the square MPa gauge is fitted, a mounting bracket is included and the reverse/check valve is fitted. Because flow is published as curves, not 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 GFR-series flow as curves rather than a single rated figure, so we do not quote a flow number here. Send us your application details and we will confirm the flow and sizing from the datasheet on request.
This unit uses differential-pressure drainage, which bleeds the bowl automatically as air passes; automatic and manual drains are also available in the family. The regulation range differs by drain: 0.15-0.9 MPa (20-130 psi) with differential-pressure or automatic drainage, and 0.05-0.9 MPa (7-130 psi) with manual drainage.
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.