The AirTAC GFR400C15MJC2G AirTAC Filter Regulator G1/2 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 GFR400C15MJC2G is a size 400 filter regulator: water and particulate removal plus downstream pressure regulation combined in one body. This configuration is built around a G1/2 port with G (BSPP) thread, a 40 um standard filter element, and a manual drain bowl in polycarbonate (size 400 bowls are PC; only size 600 uses aluminium alloy). It regulates from 0.05 to 0.9 MPa (7-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), operates from -5 to 70 C in non-freezing conditions, and carries no reverse/check valve. The fitted gauge is the external round type with a psi scale; the embedded square gauge remains the series standard, and no mounting bracket is included with this code.
This is a genuine AirTAC part from the GFR filter-regulator line, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in. Across the series you can order automatic, manual or differential-pressure drains, a 5 um element (code W), gauges scaled in MPa, psi or bar, and PT, G or NPT threads. Rated flow is published only as curves rather than a single figure, so ask us and we will confirm the datasheet flow data for your operating conditions before you order.
| Model | GFR400C15MJC2G AirTAC Filter Regulator G1/2 |
|---|---|
| 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) |
Point-of-use supply for a machining centre's pneumatic clamps and tool-change actuators: the 40 um element strips water and chips-laden condensate from the header line while the regulator holds a steady setting at the machine, with the manual drain bled during shift checks.
Filtered, regulated air for the cylinders and grippers on a case-erector and taping station, where a stable downstream pressure keeps stroke timing consistent across the shift and the G1/2 port matches the line's drop piping.
Clean, pressure-controlled air to valves and small actuators on lab benchtop automation, where the psi-scaled round gauge gives operators a direct local reading and the manual drain suits the supervised, indoor environment.
Size 400 with a 1/2 in port sits in the upper half of the GFR range; step up to size 600 or down to 300/200 depending on the flow your line needs, and match the port to your piping. Drain type is a real operating choice: this code has a manual drain, which suits supervised installations where an operator bleeds the bowl on a routine; choose automatic or differential-pressure drain codes where the unit runs unattended. The 40 um element is the standard grade; specify 5 um (code W) only where finer particulate capture is required. The round gauge on this unit reads in psi; square embedded gauges and MPa or bar scales are available. PT is the standard thread, with G and NPT as orderable options, and brackets can be added on codes that carry them. Because flow is published as curves and not a single rating, send us your application conditions and we will confirm sizing 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 only as curves, not as a single rated number, so we do not quote one. Send us your line pressure, set pressure and expected air demand, and we will confirm the flow from the datasheet curves for this size 400, G1/2 unit before you order.
The M in the code selects the manual drain bowl: collected water and condensate must be bled off by hand at the drain fitting. It suits supervised installations with routine checks. If the unit will run unattended, ask about GFR400 codes with an automatic or differential-pressure drain instead.
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.