The AirTAC GFR400C10LC2G AirTAC Filter Regulator G3/8 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 GFR400C10LC2G is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 400 unit carries a G3/8 (3/8 in) port, a 40 um standard filter element and a differential-pressure drain. It is the low-pressure type, selected where regulated settings sit below the standard range, and it is fitted with an external round gauge scaled in psi. A mounting bracket is included and no reverse (check) valve is fitted.
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 line include 5 um (W) filtration, automatic or manual drains, square or round gauges in MPa, psi or bar scales, PT, G (BSPP) or NPT threads, and bracket choices. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR400C10LC2G AirTAC Filter Regulator G3/8 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 clean, regulated low-pressure air to the clamping and hold-down cylinders on a machining-cell fixture, where the workpiece calls for gentler, lower set pressures than a standard regulator delivers.
Conditions the air supply to sealing jaws, labeling heads and sorting cylinders on a packaging line, combining water and particulate removal with pressure control at one 3/8-inch takeoff point.
Prepares the air feeding spray guns and coating applicators in a finishing booth, filtering condensed water and pipe scale ahead of a low-pressure regulated supply to the application equipment.
Size 400 with a G3/8 port sits mid-range in the GFR line; step up or down a size depending on the flow your circuit needs. Flow is published as curves, not a single rating, so send us your air demand and we will confirm the correct size against the datasheet before you order. The real choices on this family are: drain type (differential-pressure as fitted here, automatic with code A, or manual with code M), filter grade (40 um standard, 5 um with code W), gauge (embedded square as standard, external round optional, in MPa, psi or bar scales - this unit carries the round psi gauge), thread (PT is the standard; G (BSPP) or NPT are order options) and the bracket. Because this is the low-pressure type (code L), it is chosen when regulated pressures sit below the standard range; the exact adjustment range for the low-pressure type is not published, so confirm it with us.
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 this family as curves rather than a single rated figure, so we do not quote one number. Send us your line pressure, downstream demand and duty cycle, and we will confirm the sizing against the datasheet on request before you order.
L is the low-pressure regulator type, chosen when regulated settings sit below the standard range; the exact adjustment range for the low-pressure type is not published, so confirm it with us. C is the external round gauge and 2 is the psi scale. The unit also carries the differential-pressure drain and the 40 um standard element, since no drain or grade letter appears in 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.