The AirTAC GFR400C10MLJF2WTK AirTAC Filter Regulator NPT3/8 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.
GFR400C10MLJF2WTK is an AirTAC GFR400 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration is built for a 3/8 in NPT port at size 400, with a 5 um filter element (code W), a manual drain, the low-pressure regulator type, an embedded square gauge reading in psi, a reverse (check) valve fitted, and no mounting bracket. The bowl is metal. 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. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and options across the series include manual, automatic or differential-pressure drains, 40 um standard or 5 um filtration, an embedded square gauge (external round gauge optional, with MPa, psi or bar scales), PT thread as standard with G and NPT order options, and an optional mounting bracket. Flow is published as curves rather than a single rated figure, and the exact adjustment range of the low-pressure type is not listed in our sheet - ask us and we will confirm the datasheet figures for your application.
| Model | GFR400C10MLJF2WTK AirTAC Filter Regulator NPT3/8 |
|---|---|
| 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) |
On a carton-sealing or case-packing line, clamp and gripper cylinders often run below standard plant pressure. This low-pressure type filter regulator sits at the drop, the 5 um element protects the directional valves, and the manual drain is emptied at shift start.
At a paint-shop spray drop, guns need a low, stable setting rather than full line pressure. The regulator sets it, the square psi gauge makes the setting repeatable, and 5 um filtration keeps water and particulate out of the finish.
Downstream of a bottling plant's ring main, actuator circuits for filler lift and capper heads need filtered air at a set pressure. This unit filters to 5 um, regulates to the circuit's setting, and its metal bowl is drained manually during scheduled checks.
Size and port step up together across the GFR range (200/300/400/600, 1/8 in to 1 in), so choose the size whose flow curve covers your demand - we can check the curve against your air consumption before you order. The real choices on this series: drain type (manual as here, automatic, or the differential-pressure default), filter grade (40 um standard or 5 um with code W), gauge (the embedded square gauge is standard, here in psi; an external round gauge is optional with MPa, psi or bar scales), thread (PT is the standard; G and NPT are order options - this unit is NPT), and bracket (included unless code J specifies none - this one has none). The C code selects the low-pressure regulator type, which regulates below the standard range; its exact range is not published, so confirm it with us. Flow itself is published as curves, not a single rating - ask us to confirm sizing against the 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 this series as curves, not as a single rated figure, so we will not quote a number we cannot stand behind. Tell us your working pressure and air consumption and we will confirm from the datasheet whether this size 400, NPT3/8 unit covers your application.
The M in the code means the bowl drain is operated by hand - open it periodically to discharge collected water, which suits attended installations. The same GFR series is orderable with an automatic drain (code A) or the differential-pressure drain (blank) if you prefer unattended operation.
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.