The AirTAC AirTAC GFR400C10MJC2G Filter Regulator 3/8 in G Thread 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 GFR400C10MJC2G is an AirTAC GFR-series filter regulator: water and particulate filtration plus downstream pressure regulation combined in a single body. This size 400 unit is configured with a G3/8 (3/8 in) G-thread port, a manual drain, a standard 40 um filter element, and a standard regulator adjustable from 0.05 to 0.9 MPa (7 to 130 psi). A round pressure gauge reading in psi is fitted; no mounting bracket and no reverse/check valve are included. Maximum inlet pressure is 1.0 MPa (145 psi), the operating temperature range is -5 to 70 C (non-freezing), and the bowl on this size is polycarbonate (PC).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and is available with manual, automatic or differential-pressure drains, 40 um or 5 um (code W) filter grades, embedded square or external round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | AirTAC GFR400C10MJC2G Filter Regulator 3/8 in G Thread |
|---|---|
| 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) |
Feeding clean, regulated air to a machining centre's pneumatic circuits - tool changer, clamps and chip-clearing jets - with the 40 um element catching water and pipe scale before they reach the valves.
Conditioning the air feeding carton-sealers, labelling heads and sorting pushers on a packaging conveyor line, holding a stable set pressure so cylinders stroke consistently through each shift.
Preparing air for torque tools, clamping fixtures and pick-and-place cylinders at an assembly cell, with the manual drain letting maintenance bleed accumulated condensate from the bowl at planned intervals.
Size and port are the first choice: 200, 300, 400 and 600 step up in port size and flow capacity, and this unit sits at size 400 with a G3/8 (3/8 in) G-thread port, so match the step to the air demand of your circuit. Drain type matters: this configuration is manual drain, which allows the regulator to be set down to 0.05 MPa (7 psi); automatic and differential-pressure drain versions adjust from 0.15 to 0.9 MPa (20-130 psi). The filter grade here is the standard 40 um element; a 5 um element (code W) is offered where finer filtration is needed. The gauge fitted is the external round type reading in psi; embedded square gauges and MPa or bar scales are alternatives. Thread is G (BSPP); PT is the standard thread and NPT can be ordered as an option. Brackets are optional and this unit is supplied without one. Flow for the series is published as curves, not a single rating, so 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.
Flow for the GFR series is published as curves rather than a single rated figure, so we do not quote a rated flow number. Send us your air demand and operating pressure and we will confirm the datasheet figures on request and check that this size 400 unit with its 3/8 in port is correctly sized before you order.
M is the manual drain code: condensate collected in the polycarbonate bowl is released by hand, which suits duties with regular maintenance rounds. The alternative drains are automatic (code A) and differential-pressure (blank, the default). Drain choice also affects the adjustment range: with a manual drain the regulator sets from 0.05 to 0.9 MPa (7-130 psi), while automatic and differential-pressure versions set from 0.15 to 0.9 MPa (20-130 psi).
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.