The AirTAC GFR30015ALJF1WT 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 GFR30015ALJF1WT is a GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single compact body. This 300-size unit is ordered with 1/2 in NPT ports, a 5 um filter element (code W, finer than the 40 um standard), an automatic drain that expels collected condensate without manual attention, and the low-pressure regulator type. A square pressure gauge with MPa scale is fitted, and the unit is ordered without a mounting bracket. Maximum working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing. The polycarbonate bowl gives a clear view of condensate level and drain condition.
This is a genuine AirTAC part. The GFR filter-regulator family spans sizes 200, 300, 400 and 600, with port sizes from 1/8 in to 1 in, PT as the standard thread and G (BSPP) or NPT as order options, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, standard or low-pressure regulation, and gauge or no-gauge variants. Flow is published as curves rather than a single rated figure, so ask us to confirm flow and datasheet figures for your application before ordering.
| Model | GFR30015ALJF1WT 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 | 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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, MPa 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. 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. |
|---|---|
| 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)). |
| L | Low-pressure 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. |
| 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. |
| (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) |
Cleaning and regulating the shop-air feed to a machining centre's pneumatic tool-changer and clamping circuits, with 5 um filtration protecting precision valves and the automatic drain handling condensate from long unattended shifts.
Feeding a low-pressure actuation or process-control loop where the low-pressure regulator type is required rather than a standard-range regulator, with the fitted MPa gauge giving a direct local pressure readout at the panel.
Conditioning the air drop that serves a packaging machine's sealing and vacuum-assist cylinders: the filter-regulator in one body saves panel space, and the automatic drain keeps moisture out of the seal bars without daily bowl bleeding.
Start with size and port: the 300 size with 1/2 in NPT ports suits lines where larger supply piping feeds a moderate flow demand - step up to 400 or 600, or down to 200, depending on the flow curve for your consumption. Choose the drain: automatic (this unit) drains itself and suits inaccessible or unattended installations; manual drain is the lowest-cost choice where an operator is present; differential-pressure drain is the catalogue default. Choose the filter grade: 5 um (code W, as ordered here) for finer protection of downstream components, or the 40 um standard for general water and particulate removal. This unit is the low-pressure regulator type - confirm its adjustment range from the datasheet with us. Gauge scale (MPa, psi or bar), thread (PT standard, G or NPT to order) and bracket inclusion are all decodable choices. Flow is published as curves, not a single rating, so 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. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes GFR flow as performance curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number. Send us your line pressure and air consumption and we will confirm the flow and datasheet figures for this exact model on request before you order.
Both are decodable from the model code: A in the drain position means an automatic drain that expels condensate without manual attention, and W in the filter-grade position means the 5 um element instead of the 40 um standard. Choose automatic drain for unattended or hard-to-reach installations and 5 um when downstream components need finer protection; the manual-drain and 40 um versions of the same GFR300 size are available to order.
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.