The AirTAC GFR40015ALC1WT AirTAC Filter Regulator NPT 1/2 in, 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 GFR40015ALC1WT is an AirTAC GFR400 filter regulator: one body that removes water and particulate from compressed air and then regulates downstream pressure. This configuration is the size 400 unit with a 1/2 in NPT port, the fine 5 um filter element (code W), an automatic drain that expels collected condensate without manual attention, and the low-pressure regulator type for applications set below the standard range. A round pressure gauge scaled in MPa is fitted so the set point can be read directly, and the mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). The filter bowl on this size is PC (polycarbonate).
This is a genuine AirTAC part. The GFR filter-regulator family is published in sizes 200, 300, 400 and 600 with a choice of ports, threads, drain types, filter grades, gauges and regulator types, so a matching unit can be specified for most lines. Flow is published as curves rather than a single rated figure; ask us to confirm the sizing and the exact datasheet figures for this model before you order.
| Model | GFR40015ALC1WT AirTAC Filter Regulator NPT 1/2 in, 5 um |
|---|---|
| Series | GFR400 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 — round, 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.
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 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). |
| C | Gauge shape: Round. 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 | GFR400 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Feeds filtered, regulated air to clamp and fixture cylinders on a CNC machining cell, with the 5 um element protecting the directional valves and the automatic drain keeping condensate out of the circuit during unattended shifts.
Sits at the air inlet of a cartoning or wrapping machine, cleaning the supply and holding a steady low set point for the machine's cylinders and grippers, with the fitted MPa gauge giving operators a visible set point.
Prepares air for paint spray guns and air-assisted applicators, where the 5 um element reduces particulate reaching the finish and the regulator holds the lower delivery pressure the gun needs.
Start with the port step: this is the size 400 unit with a 1/2 in NPT thread, one step above the 3/8 in size 300 and below the 3/4 in size 500-class 600 body - pick the size whose flow curve covers your demand. Drain type is a real choice: automatic (this model) empties the bowl on its own, manual needs an operator, and the default is differential-pressure; choose automatic for lines that run unattended. Filter grade is 40 um standard or 5 um (code W, fitted here) where finer particulate protection matters. Gauges come as the embedded square type or an optional external round gauge, scaled in MPa, psi or bar - this unit carries a round MPa gauge. Thread is PT as the catalogue standard with G (BSPP) and NPT (this model) as order options; a bracket is included unless code J is specified.
Because AirTAC publishes flow as curves, not a single rated number, we do not quote a rated flow for this unit. Send us your application demand and we will confirm the sizing against the datasheet curves before you order, along with the exact low-pressure regulation range for this type.
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 filter-regulator flow as curves, not as a single rated figure, so we do not quote a rated flow, Cv or SCFM number for this unit. Send us your line demand and we will confirm the sizing against the datasheet curves for the size 400 body on request, together with the full datasheet.
Both are decoded from the model code. A is the automatic drain, which ejects collected condensate by itself instead of waiting for a manual or differential-pressure drain - useful on lines that run unattended. W is the 5 um filter element, one grade finer than the 40 um standard, chosen where downstream valves and actuators need cleaner air.
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.