The AirTAC GFR400C10MLJC2GK AirTAC Filter Regulator G3/8 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 GFR400C10MLJC2GK is an AirTAC GFR400 filter regulator: one body that removes water and particulate from compressed air and then regulates the downstream pressure. This configuration is a size 400 unit with G3/8 (BSPP) ports, a 40 um standard filter element and a manual-drain polycarbonate bowl, and it is the low-pressure regulator type. It comes fitted with an external round gauge reading in psi and a reverse/check valve, and it is supplied without a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing).
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 for thread (PT standard; G or NPT to order), drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um with code W), gauge style and scale, bracket and reverse valve. Flow is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR400C10MLJC2GK AirTAC Filter Regulator G3/8 |
|---|---|
| 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) |
Filtered, regulated air to the clamp cylinders that hold cartons in place during gluing and sealing on a carton-forming line; the manual drain suits a shift-start maintenance routine.
Supplying the air cylinders that divert and gate bottles between the filler and capper, where the low-pressure regulator type provides a gentler supply for light-duty actuators.
A clean, regulated pilot supply to diaphragm control valves on a water-treatment skid; the fitted reverse/check valve blocks backflow in the pilot line if upstream air dips.
Size 400 with G3/8 ports sits in the middle of the GFR range; step between sizes 200/300/400/600 as your circuit's demand grows, and send us your consumption figures so we can check the flow curve with you. Drain choice matters: this unit has a manual drain, so the bowl is emptied by hand, which suits attended installations; choose automatic or differential-pressure drain where the unit runs unattended. The 40 um element is the standard grade; specify code W for the 5 um option where finer filtration is needed. The fitted round gauge reads in psi - an embedded square gauge and MPa or bar scales are the alternatives. Thread here is G (BSPP); PT is the AirTAC standard and NPT is an order option. No bracket is fitted, so order one if you panel-mount. Because flow is published as curves, not 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 G-series flow as curves rather than a single rated figure, so there is no one l/min or SCFM number we can quote. Send us your line pressure and air consumption and we will confirm the flow from the datasheet for this exact model before you order.
Code M in the model means the bowl is drained by hand, which suits attended installations with a regular maintenance routine; the GFR family is also available with automatic or differential-pressure drains for unattended duty. This unit is also the low-pressure regulator type, whose adjustment range is not published in the standard table, so confirm the range with us when ordering.
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.