The AirTAC GFR400C15ALC2 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 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 GFR400C15ALC2 is an AirTAC GFR400 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration is built with 1/2 in PT ports, an automatic drain that clears collected condensate on its own, the standard 40 um filter element, and a low-pressure regulator for circuits that run at reduced settings. A round gauge scaled in psi is fitted and the mounting bracket is included. The polycarbonate bowl lets you see the condensate level at a glance. Rated for a maximum inlet pressure of 1.0 MPa (145 psi) and -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR series is made in sizes 200, 300, 400 and 600, with port sizes from 1/8 to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um standard or 5 um (W) filtration, embedded square or external round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the figures for your application on request.
| Model | GFR400C15ALC2 AirTAC Filter Regulator PT1/2 Low Pressure |
|---|---|
| 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) |
Feeding the clamping cylinder on a carton-sealing machine: the 40 um element strips water and particles from plant air before the valve, while the low-pressure regulator holds a reduced setting for the delicate forming step and the round psi gauge gives the operator a direct read.
Conditioning supply air ahead of the spray guns in a woodshop finishing booth. The automatic drain keeps condensate out of the air line without daily attention, and the low-pressure regulator suits atomizing circuits that run at gentle settings.
Supplying the low-pressure air cylinders that push cartons between conveyor lanes in a fulfilment centre. The 1/2 in PT ports tie into the main drop leg, the automatic drain handles moisture from long runs of piping, and the bracket secures the unit beside the control panel.
Step up or down through the GFR sizes (200/300/400/600) to match the port and flow path your line needs; this unit sits at size 400 with 1/2 in PT ports. Choose the drain to suit maintenance habits: automatic (this code) expels condensate by itself, while differential-pressure (blank) and manual (M) are orderable alternatives. Filtration is 40 um standard; specify W for the 5 um element where downstream equipment needs finer air. Gauges come as the embedded square type or an external round gauge, scaled in MPa, psi or bar - this model carries the round psi gauge. PT is the standard thread; G (BSPP) and NPT are catalogue options to order. A mounting bracket is included with this code.
One honest note on sizing: AirTAC publishes flow as curves, not a single rated figure, so send us your application details and we will confirm the right size against the datasheet 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 number, so there is no honest one-line figure we can quote. Send us your application - port size, downstream demand and line pressure - and we will confirm the sizing directly from the datasheet on request.
The A in this code means the bowl drain expels collected condensate automatically, so the unit does not rely on someone bleeding it by hand. If you prefer, the same GFR400 body can be ordered with a differential-pressure drain (blank) or a manual drain (M); just ask and we will quote the alternative code.
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.