The AirTAC GFR400C10MC2GK AirTAC Filter Regulator 3/8in G 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 GFR400C10MC2GK is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration has a 3/8 in port with G (BSPP) thread, a manual drain bowl in polycarbonate, a 40 um standard filter element, an external round gauge scaled in psi, a built-in reverse/check valve, and a mounting bracket. The regulator adjusts from 0.05 to 0.9 MPa (7-130 psi), and the unit handles a maximum inlet pressure of 1.0 MPa (145 psi) at temperatures from -5 to 70 C (non-freezing).
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, a choice of drain type, a 5 um optional filter element (code W), gauge style and scale, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm datasheet figures for your application on request.
| Model | GFR400C10MC2GK AirTAC Filter Regulator 3/8in G |
|---|---|
| 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) |
Clean, regulated air to the tool-change clamps and pneumatic actuators on a machining centre, with the check valve holding set pressure through supply dips and the manual drain bled at shift start.
Filtered and pressure-regulated air to spray guns in a finishing line, where the 40 um element keeps water and debris out of the finish and the psi gauge lets operators set gun pressure directly.
Conditioned air upstream of directional valves and cylinders on a carton packaging conveyor, with the regulator holding a stable setting and the bracket mounting the unit on the machine frame.
Choose the size and port step against the air demand of the circuit: this unit is size 400 with a 3/8 in port, one step up from size 300 and one below size 600. Drain type is a real choice: manual drain (this unit) needs periodic bleeding, while automatic and differential-pressure drains discharge condensate without attention. Filter grade is 40 um standard here; specify code W for the 5 um element where finer filtration is needed. Gauge options are the embedded square gauge or an external round gauge, with MPa, psi or bar scales - this unit carries a round psi gauge. Thread is G (BSPP) here; PT is the standard and G/NPT are order options. A reverse/check valve (fitted here, code K) holds downstream pressure if the supply drops, and the 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 GFR series as curves, not as a single rated figure, so we do not quote a flow number. Send us your application details and we will confirm the flow and datasheet figures on request before you order.
The M in the code means the polycarbonate bowl has a manual drain: condensate collects in the bowl and is bled off by hand. Automatic and differential-pressure drain versions are available in the same series if you would rather not drain manually.
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.