The AirTAC GFR400C10MLJF3WT AirTAC Filter Regulator 3/8 in NPT 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, all in a single body. This unit is the 400 size with a 3/8 in NPT port, fitted with a 5 um filter element (code W), a manual drain, and the low-pressure regulator type. An embedded square gauge with a bar scale is included so the set point can be read directly; no mounting bracket is supplied with this configuration and no reverse/check valve is fitted. The polycarbonate bowl suits non-freezing compressed air from -5 to 70 C, and the maximum working (inlet) pressure is 1.0 MPa (145 psi).
This is a genuine AirTAC part. The GFR400 size sits within a family that spans sizes 200, 300, 400 and 600, with ports from 1/8 to 1 in, drain options (differential-pressure, automatic or manual), 40 um standard or 5 um fine elements, gauge scales in MPa, psi or bar, and PT, G or NPT thread options. 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 | GFR400C10MLJF3WT AirTAC Filter Regulator 3/8 in NPT |
|---|---|
| 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) |
Conditioning the air feeding directional control valves on a bottling line: the 5 um element keeps scale and pipe debris out of the valve seats, while the regulator holds the circuit at the set point the valve bank was set up for. The bar-scale gauge lets a technician read the line setting at a glance during changeover.
Supplying clean, regulated air to a light-duty bench press or clamping fixture. The low-pressure regulator type suits circuits that run at modest set points, the 3/8 in NPT port matches typical cell drop lines, and the manual drain fits a cell that is checked at the start of each shift.
Feeding the diverters, pushers and stop gates on a packaging conveyor. Filtered air protects the small actuating cylinders from water and grit, steady regulated pressure keeps divert timing repeatable, and the square gauge gives operators a visible reference for the line pressure setting.
Size and port step up with flow demand: this is the 400 size with a 3/8 in NPT port, while smaller 200/300 bodies carry 1/8 to 1/2 in ports and the 600 body carries 3/4 to 1 in. Drain type is a real choice: this unit has a manual drain (code M, drained by hand), while the differential-pressure default and the automatic drain option suit unattended installations. The 5 um element (code W) gives finer filtration than the 40 um standard where downstream components need cleaner air. The gauge on this unit reads in bar; MPa and psi scales are the alternatives. Thread is NPT here - PT is the standard and G (BSPP) is the other order option - and the J code means no mounting bracket is included. Flow is published as curves, not a single rating, so have us 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 rather than a single rated figure, so we do not quote a number here. Send us your application details - line pressure, set point and the equipment downstream - and we will confirm the flow and datasheet figures for this exact model on request before you order.
The M code in this model means a manual drain: accumulated water in the bowl is released by hand, which suits installations that are checked regularly. If the unit will sit unattended, the automatic drain (code A) or the differential-pressure default may be the better choice - both are orderable in the same GFR400 size. This particular unit is specified with the manual drain.
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.