The AirTAC GFR40010MF2WT AirTAC Filter Regulator NPT3/8, 5 um is a genuine G-series filter regulator: water separation, 5 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 GFR400 is a size-400 filter regulator: it removes water and particulate from compressed air and sets a stable downstream pressure in one body. This configuration has a 3/8 in NPT port, a 5 um filter element for finer filtration than the 40 um standard, a manual drain on the polycarbonate bowl, an embedded square gauge reading in psi, and a mounting bracket. The standard regulator covers 0.05-0.9 MPa (7-130 psi) and maximum inlet pressure is 1.0 MPa (145 psi). Operating temperature is -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 port sizes from 1/8 in to 1 in, a choice of 40 um or 5 um filtration, manual, automatic or differential-pressure drains, square or external round gauges with MPa, psi or bar scales, and G, NPT or PT threads. Flow figures are published as curves rather than a single rating, so ask us to confirm the datasheet flow for your application on request.
| Model | GFR40010MF2WT AirTAC Filter Regulator NPT3/8, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 5 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 | Fitted — square, psi 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 0.05 - 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Feeds filtered, pressure-regulated air to the tool-clamp and actuation circuits of a CNC machining centre, where the 5 um element helps protect precision valves from fine particulate.
Supplies regulated air to the stop, divert and clamp cylinders along a packaging conveyor line, with the psi gauge giving operators a clear local pressure reference.
Drops filtered and regulated air to handheld pneumatic tools at an assembly-line station, with the manual drain allowing scheduled bowl emptying during shift changeover.
Step up or down through the size range (200/300/400/600) to match the port and flow your line needs; this unit sits at 3/8 in NPT. Choose the drain to suit maintenance routines: manual drain (this model) requires someone to open the bowl, while automatic and differential-pressure drains discharge condensate without attention. Pick 5 um filtration when downstream valves, cylinders or instruments need finer air than the 40 um standard. Gauge scale (psi on this unit, with MPa or bar available) and thread (PT standard, G and NPT as order options) complete the decode.
Because flow is published as curves rather than a single rated figure, 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 GFR series as curves, not as a single rated number, so we do not quote a figure here. Ask us to confirm the datasheet flow for your operating conditions on request, and we will check it against your application before you order.
This model is coded M for a manual drain: the polycarbonate bowl is emptied by hand on a maintenance schedule. The GFR family also offers an automatic drain (code A) and a differential-pressure drain (blank) that discharge condensate without operator attention - choose those if the unit is installed where regular draining is impractical.
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.