The AirTAC GFR40015ALC2K AirTAC Filter Regulator PT1/2 Low-Pressure 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 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 GFR40015ALC2K is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is fitted with PT1/2 ports, a 40 um standard filter element, an automatic drain that expels collected condensate without manual attention, and a low-pressure regulator type for applications that work at reduced setpoints. It also carries a round psi gauge for direct reading of the outlet pressure and a built-in reverse (check) valve, and it comes with a mounting bracket.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in and options including manual or differential-pressure drains, a 5 um element (code W), G or NPT threads, and alternative gauge scales. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR40015ALC2K AirTAC Filter Regulator PT1/2 Low-Pressure |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (PT thread) |
| Filtering grade | 40 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, psi 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. 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. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT 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 | GFR400 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Feeds and regulates the air supply to fixture clamps on a CNC cell, holding a stable low setpoint while the automatic drain keeps condensate out of the clamp cylinders.
Conditions the supply to a carton-forming and sealing line, filtering water and debris at 40 um and regulating the low operating pressure the sealing actuators require.
Supplies the air cylinders that divert or stop product on a conveyor line, with the check valve holding the set circuit and the auto drain protecting the valves from moisture.
Choose the size 400 / PT1/2 step when your line's flow demand sits above what a 300-size unit serves; flow is published as curves, not a single rating, so send us your air consumption and we will confirm the sizing before you order. This unit's automatic drain suits unattended installations - choose manual drain only if you prefer controlled, scheduled draining, or differential-pressure drain if you want the bowl to discharge on a pressure differential. The 40 um element is the standard grade; specify the W code for the 5 um element if downstream equipment needs finer filtration. The round gauge here reads in psi; square embedded gauges and MPa or bar scales are alternatives. PT thread is the standard on this model, with G (BSPP) and NPT available as order options, and the bracket is included.
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 flow for the GFR400 series as curves, not as a single rated number, so we do not quote a figure. Send us your required flow and operating pressure and we will confirm the datasheet curve and correct sizing for your application before you order.
The A in the code selects the automatic drain, which discharges condensate from the PC bowl without manual intervention - useful for unattended equipment. The C and 2 select the external round gauge with a psi scale; the embedded square gauge is the standard alternative, with MPa or bar scales available. The K code adds the reverse (check) valve, and the low-pressure L type sets the regulator for reduced setpoints - ask us to confirm the exact adjustment range for your setpoint.
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.