The AirTAC GFR40010MJNTK 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 PT3/8" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR40010MJNTK is a size-400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration carries a 3/8 in NPT port, a 40 um standard filter element, a manual drain bowl in polycarbonate, a built-in reverse/check valve, and no pressure gauge or mounting bracket. The standard regulator covers 0.05-0.9 MPa (7-130 psi) with manual drain, and the unit handles a maximum inlet pressure of 1.0 MPa (145 psi) at -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with a choice of ports, threads (PT standard; G and NPT as order options), drain types, filter grades (40 um standard, 5 um with code W) and gauge options. Flow is published as curves rather than a single rating, so ask us to confirm datasheet figures for your application on request.
| Model | GFR40010MJNTK AirTAC Filter Regulator NPT3/8 |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Not fitted |
| Reflux valve | Fitted (reverse flow permitted) |
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 0.05 - 0.9 MPa (7 - 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. |
|---|---|
| 10 | Port size PT3/8". This body offers 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| N | No pressure gauge (N). |
| (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. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Positioned upstream of clamping cylinders on a machining centre, this unit filters machining-air moisture and particulate and holds the regulated pressure the clamp circuit needs, with the check valve holding downstream conditions if supply dips.
On a packaging or cartoning line, the 40 um element strips water and debris before diverters and actuators, while the regulator keeps the pressure feeding the line's cylinders steady through shift-length running.
Mounted at an individual work cell fed from a plant air main, this 3/8 in unit gives local filtration and pressure control for the cell's air tools and actuators, with manual drain suited to a cell that is checked each shift.
Choose the size and port step (200/300/400/600 with ports from 1/8 in to 1 in) against the air demand of the circuit; this unit is the size-400, 3/8 in NPT step. Drain type matters: manual drain (this unit) needs periodic bowl draining, while automatic or differential-pressure drains suit unattended installations. Filter grade is 40 um standard; specify 5 um (code W) where finer particulate removal is needed. Gauge and scale (round or square, MPa/psi/bar), thread (PT standard, G or NPT to order) and bracket are each selectable.
Flow for this family is published as curves, not a single rated figure, so we do not quote a number here. Send us your application details and we will confirm sizing and datasheet figures against the curves before you order.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for this family as curves, not as a single rated figure, so we do not quote a number here. Tell us your application's air demand and we will confirm the sizing and the datasheet flow figures for the GFR400 at 3/8 in on request before you order.
The M in the code GFR40010MJNTK specifies a manual drain bowl: condensate collected by the 40 um element is released by opening the drain periodically. If the installation runs unattended, the same GFR400 family is available with automatic (code A) or differential-pressure (blank) draining - 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.