The AirTAC GFR400C15ALJC2GK AirTAC Filter Regulator G1/2 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 AirTAC GFR400 series is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure at a set point in a single body. This unit is the size 400 frame with a G1/2 (BSPP) port, an automatic drain that bleeds condensate from the metal bowl without manual intervention, a 40 um standard filter element, and the low-pressure regulator type. It is fitted with a round external gauge reading in psi and a reverse/check valve, and is supplied without a mounting bracket.
This is a genuine AirTAC part. The GFR family runs from size 200 to 600 with port sizes from 1/8 to 1 inch, a choice of automatic, manual or differential-pressure drains, 40 um or 5 um (code W) elements, and gauges scaled in MPa, psi or bar. 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 rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR400C15ALJC2GK AirTAC Filter Regulator G1/2 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) |
Filtered and regulated air to gripper and actuator circuits on assembly robots, where the automatic drain keeps condensate out of the valves between shift checks.
Low-pressure air to capper, clamp and ejector actuators on a filling line, with the 40 um element protecting directional valves from water and debris.
A regulated low-pressure supply for leak and functional test rigs in the lab, with the psi-scaled round gauge giving a direct readout at the bench.
Choose the size and port step against the air demand of the circuit: size 400 with a G1/2 port sits in the upper mid-range of the GFR line, which steps from 1/8 inch at size 200 to 1 inch at size 600. Decide the drain next: automatic (this unit) suits unattended duty, manual suits periodic checks, and differential-pressure is the catalogue default. Filter grade is 40 um as standard; specify code W for the 5 um element where finer particulate matters. Gauges can be ordered with MPa, psi or bar scales, and the thread is selectable as PT (the series standard), G or NPT at order time. This low-pressure type configuration has no published regulation range, so confirm the set-point window with us before ordering, and ask us to check sizing against the flow curves rather than a single rated figure.
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 number here. Send us your operating pressure and air demand and we will confirm the flow from the datasheet for this size 400, G1/2 unit before you order.
The automatic drain (code A) bleeds collected condensate from the metal bowl on its own, which suits installations that run unattended or are checked infrequently. Manual and differential-pressure drains are the alternatives within the same family if you prefer to control draining yourself.
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.