The AirTAC GFR400C10MLJF2WG AirTAC Filter Regulator G3/8, 5 um 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 GFR400C10MLJF2WG is a size 400 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration carries a G3/8 (BSPP) port, a 5 um filter element (the W grade, finer than the 40 um standard), a manual drain on the metal bowl, and the low-pressure regulator type. A square pressure gauge with a psi scale is fitted, no mounting bracket is included, and no reverse/check valve is fitted. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part from the GFR400 series. The GFR line is offered in sizes 200, 300, 400 and 600 with a choice of drain type (differential-pressure, automatic or manual), 40 um or 5 um filtration, square or external round gauges with MPa, psi or bar scales, PT (standard), G or NPT threads, and optional brackets. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR400C10MLJF2WG AirTAC Filter Regulator G3/8, 5 um |
|---|---|
| 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) |
On a machining cell where clamps and swing cylinders must run at a reduced, stable setting rather than full line pressure, this filter regulator cleans the supply and holds the setpoint at each station, with the psi gauge giving the operator a direct local readout.
Spray guns and air-assisted applicators need air stripped of water and fine particulate before it reaches the gun. The 5 um element on this unit handles that job, and the regulator lets the finisher set and hold the gun supply pressure at the booth.
Sorting and diverting actuators along a packaging line behave best when fed clean air at a fixed, moderate pressure. Mounted at the line drop, this unit filters the supply, regulates it for the divert cylinders, and its manual drain suits a line that is blown down at shift end.
Choose the GFR400 size and its 3/8 in port when your line sits between the smaller 300 and the larger 600 frame; the right step depends on the flow your circuit needs, so let us check the published flow curve against your demand before you order. Drain type is a real decision: this unit has a manual drain, which means the bowl is emptied by hand, while automatic and differential-pressure drains are available on other codes if you cannot schedule manual draining. Filtration is 5 um here (code W); the 40 um standard element suits general shop air if finer filtration is not required. The fitted square gauge reads in psi; MPa and bar scales and an external round gauge are alternatives. Thread is G (BSPP) on this code - PT is the standard thread, with G and NPT as order options. Brackets are optional; this code is supplied without one. 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 GFR400 series as curves, not as a single rated number, so we do not quote a figure here. Tell us your line pressure and the flow your circuit needs and we will confirm the sizing against the datasheet curve on request before you order.
This code carries an M drain: accumulated condensate in the metal bowl is released by operating the drain by hand, so it suits installations where someone checks the unit routinely. If the unit is mounted out of reach or the line runs unattended, the GFR400 is also available with an automatic or a differential-pressure drain on other codes - ask us for those variants.
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.