The AirTAC GFR30015AF3WT AirTAC Filter Regulator NPT1/2, 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 PT1/2" 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 GFR30015AF3WT is a 300-size filter regulator that removes water and particulate from compressed air and sets downstream pressure in a single body. This configuration is built around a 1/2 in NPT port, an automatic drain that expels collected condensate without manual attention, and a fine 5 um filter element where the standard 40 um grade is not fine enough. The fitted square gauge reads outlet pressure in bar, and the standard-type regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi). A mounting bracket is included and the polycarbonate bowl suits the 300 size.
This is a genuine AirTAC part from the GFR filter-regulator family, which spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in and PT, G or NPT threads. Drain, filter grade, gauge and thread options let you match the unit to the line. Flow is published as curves rather than a single rating, so we confirm the datasheet and sizing figures on request.
| Model | GFR30015AF3WT AirTAC Filter Regulator NPT1/2, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (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. |
|---|---|
| 15 | Port size PT1/2". 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. |
| 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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeding clean, regulated air to a carton-sealing and wrapping line, where the 5 um element protects downstream valves and the automatic drain keeps condensate off the products without operator rounds.
Regulating supply pressure to conveyor stopper and pusher cylinders, with the square bar gauge giving operators a clear local reading and the bracket allowing tidy panel-side mounting.
Conditioning air for laboratory automation and test-rig actuators, where the finer 5 um filtration and stable 0.15-0.9 MPa regulation support consistent instrument actuation.
Start with size and port: the 300 body with a 1/2 in NPT port suits lines where larger supply piping feeds the unit, and the next step up or down changes both port and flow capacity. Choose the drain to match access: automatic (as here) for unattended duty, manual where you prefer controlled blows-down, or the differential-pressure default. Filter grade is 40 um standard; the W code gives 5 um for finer protection, as selected on this model. Gauge scale is MPa, psi or bar (bar here), thread is PT standard with G and NPT as order options, and a bracket is included on this configuration. Because flow is published as curves rather than a single rated figure, ask us to confirm sizing against your air demand before ordering.
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 GFR300 series as curves, not as a single rated figure, so we do not quote one number. Send us your line pressure and air demand and we will confirm the sizing from the datasheet on request.
The A code fits an automatic drain, which discharges collected condensate by itself and suits units mounted in awkward or unattended positions. Manual and differential-pressure drain versions of the same GFR300 body are available if you prefer a different arrangement.
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.