The AirTAC GFR400C15ALC2G 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 GFR400C15ALC2G is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure at a set point, in one body. This configuration is the size 400 unit with a G1/2 (BSPP) port, automatic drain, standard 40 um filtration, the low-pressure regulator type, a round pressure gauge reading in psi, and a metal bowl. The automatic drain clears collected condensate without daily attention, the mounting bracket is included, and no reverse/check valve is fitted. Maximum working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -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 to 1 inch, and options across the family include manual or differential-pressure drains, a 5 um filter element (code W), embedded square or external round gauges with MPa, psi or bar scales, and G or NPT threads alongside the PT standard. Flow figures are published as curves rather than a single rating, so ask us to confirm the datasheet for your application.
| Model | GFR400C15ALC2G 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) |
Feeds filtered, regulated low-pressure air to the clamping cylinders on a machining fixture, with the round psi gauge giving the setter a direct readout at the set point and the automatic drain keeping condensate out of the clamp valves.
Mounted at the air drop feeding the seal-bar and cutoff cylinders of a packaging machine, where the 40 um element stops pipe scale reaching the valves and the automatic drain handles the condensate that collects overnight.
Prepares the air feeding a robotic pick-and-place gripper circuit: filtration protects the small control valves, the low-pressure regulator type suits a gentle grip circuit, and the included bracket fixes the unit beside the cell manifold.
Step the size to the job: this unit is size 400 with a 1/2 inch port; the 200/300 sizes step down and 600 steps up in port and flow capacity. Drain choice matters in practice - differential-pressure is the default, automatic (this unit) suits drops that are not checked daily, and manual gives full control at the point of use. Filtration is 40 um standard, with 5 um (code W) where finer protection is needed. The low-pressure regulator type (L) is selected for circuits working below standard regulator settings; confirm the exact adjustment range with us before ordering. Gauges: an embedded square gauge is standard and an external round gauge is optional, with MPa, psi or bar scales - this unit carries a round psi gauge. Thread here is G (BSPP); PT is the standard thread and G or NPT are order options, and a bracket is included. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application before ordering.
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 as curves, not as a single rated figure, so we do not quote a number here. Send us your required flow and working pressure and we will confirm the sizing against the datasheet before you order.
The A in the code sets the automatic drain, which clears collected condensate without daily attention. The GFR400 is also available with a manual drain or the differential-pressure default, and the filter element can move from the 40 um standard to 5 um with code W - tell us which combination you need and we will confirm the 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.