The AirTAC GFR400C15ALC2TK AirTAC Filter Regulator NPT 1/2 in 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 See datasheet ports, a differential-pressure 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 GFR400C15ALC2TK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 400 unit is threaded NPT 1/2 in, carries the automatic drain (code A) so collected condensate is ejected without manual attention, and uses the standard 40 um filter element. The L in the code selects the low-pressure regulator variant, the C2 code fits an external round gauge reading in psi, K adds a built-in reverse (check) valve, and the mounting bracket is included. The polycarbonate bowl handles a maximum inlet pressure of 1.0 MPa (145 psi) at air temperatures of -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, drain choices (differential-pressure, automatic or manual), an optional 5 um element (code W), gauge scales in MPa, psi or bar, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rating, so ask us to confirm sizing and any datasheet figure for your application before ordering.
| Model | GFR400C15ALC2TK AirTAC Filter Regulator NPT 1/2 in |
|---|---|
| Series | GFR400 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard 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.
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| C1 | Port size See datasheet. This body offers 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure 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). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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. |
| (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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
Filtering and regulating the air feeding glue applicator heads on a corrugated box closing machine, where the low-pressure variant and steady regulation keep bead placement consistent shift after shift.
Conditioning supply air for swing and riser clamps on machining fixtures: the 40 um element keeps water and chips out of the valve stack while the regulator holds the clamp pressure the fixture was set up with.
Clean, regulated air for the pneumatic label-press cylinders on a bottle line, with the automatic drain dealing with condensate carried over from humid summer compressor air.
Step up or down through sizes 200, 300, 400 and 600 against the flow your line needs; this size 400 unit takes a 1/2 in port. Choose the drain to match maintenance habits: automatic (this unit) for unattended condensate ejection, manual where an operator drains on schedule, or the differential-pressure default. Filter grade is 40 um standard or 5 um with code W if downstream equipment needs finer filtration. Gauge scale can be ordered in MPa, psi or bar, and the thread is PT as standard with G and NPT as catalogue options; this unit is the NPT version. Bracket is included.
One honest note before you order: AirTAC publishes flow for this series as curves, not a single rated figure, and this unit is the low-pressure regulator variant whose exact adjustment range is not published either. Send us your flow, setpoint and working pressure and we will confirm the sizing against the datasheet.
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 GFR400 series as curves, not as a single rated number, so we do not quote a figure here. Send us your required flow and working pressure and we will confirm from the datasheet that this size 400, 1/2 in unit is right before you order.
The A in this code fits the automatic drain, which ejects collected condensate on its own so the bowl does not depend on an operator. The same GFR400 size is also available with a manual drain (code M) or the differential-pressure drain (no code) if your maintenance routine suits those better.
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.