The AirTAC GFR30015ALF1WT 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 GFR30015ALF1WT is a GFR-series filter regulator: it removes water and particulate from compressed air and sets downstream pressure in a single 300-size body with a 1/2 in NPT port. This configuration carries the 5 um filter element (code W) for finer filtration than the standard 40 um grade, an automatic drain that expels collected condensate without manual attention, the low-pressure regulator type, and the embedded square gauge scaled in MPa so the set pressure is always visible at the unit. It is a filter and regulator only - it does not lubricate the air.
This is a genuine AirTAC part in the GFR300 size class, one of four published sizes (200, 300, 400, 600) with port options from 1/8 in to 1 in and PT, G or NPT threads. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR30015ALF1WT 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. |
| (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. |
| (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) |
Supplies filtered, pressure-set air to clamp cylinders on a CNC fixture line, with the 5 um element protecting the clamp valves and the automatic drain handling condensate between shifts.
Feeds bagging and carton-sealing machinery from a plant air main, holding a steady low set pressure for sealing actuators while the automatic drain keeps moisture out of the machine circuit.
Sits ahead of a directional-valve manifold on an automated assembly station, filtering fine particulate and regulating supply pressure, with the MPa gauge giving operators a visible setpoint.
Step up or down through the GFR sizes (200, 300, 400, 600) and their ports against the air demand of the circuit - the 300 size with a 1/2 in NPT port suits lines that have outgrown 1/4 in and 3/8 in supply. Choose the drain to match attendance on site: automatic (this model) for unattended drains, manual where an operator is present, or the differential-pressure default. Pick the 5 um element (W) when downstream valves and cylinders need finer air than the standard 40 um grade. The embedded square gauge here reads in MPa; external round gauges and psi or bar scales are options. PT is the standard thread, with G and NPT as orderable variants, and a bracket is included for mounting.
One honest note on sizing: flow for this series is published as curves, not as a single rated number, so we cannot quote a rated flow here. Send us your application details and we will confirm the datasheet figures and the right size before you order.
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 GFR series as curves, not as a single rated figure, so we do not quote a rated flow, Cv or SCFM number for this unit. Tell us your application and we will confirm the datasheet flow figures and check the 300-size, 1/2 in port unit against your air demand before you order.
The A in the code sets the automatic drain, which ejects collected condensate on its own - the right choice where the unit is not checked daily; manual and differential-pressure drains are available in the same size. The W sets the 5 um filter element, one grade finer than the 40 um standard, for circuits with sensitive valves or cylinders. The L sets the low-pressure regulator type and the F1 the embedded square gauge scaled in MPa.
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.