The AirTAC GFR40010MLF2TK AirTAC Filter Regulator NPT 3/8 in 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 GFR40010MLF2TK is an AirTAC GFR400 filter regulator: a 400-size unit that removes water and particulate from compressed air and holds a set downstream pressure, all in one body. This configuration carries a 3/8 in NPT port, a manual drain on the PC (polycarbonate) bowl, and the standard 40 um filter element. The regulator is the low-pressure type, an embedded square gauge with a psi scale is fitted, a reverse/check valve is built in, and a mounting bracket is included. 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 200, 300, 400 and 600 sizes with port choices from 1/8 in to 1 in, manual, automatic or differential-pressure drains, 40 um standard or 5 um (W) elements, embedded square or external round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow for this family is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application.
| Model | GFR40010MLF2TK AirTAC Filter Regulator NPT 3/8 in |
|---|---|
| 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 | Low-pressure 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 | 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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)). |
| L | Low-pressure 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. |
| (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) |
Feeding clean, pressure-set air to the wrapper and sealer cylinders on a packaging line, with the manual drain emptied as part of the shift check routine.
Supplying filtered, regulated air to a small pneumatic press or clamping fixture where the operator sets and holds a lower working pressure at the gauge.
Conditioning air for conveyor diverter and stopper cylinders, with the built-in reverse/check valve guarding the circuit against backflow.
Choose the size by port and flow demand: this 400 unit sits mid-range with a 3/8 in NPT port; step down to 300 or 200, or up to 600, as the line requires. The drain is manual here - the bowl is emptied by hand at its valve; automatic (A) and differential-pressure (blank) drain codes are available if the unit runs unattended. The element is the standard 40 um grade; specify the W code for the 5 um option. The gauge is the embedded square type on a psi scale; MPa and bar scales, and an external round gauge, are order options. Thread is NPT, with PT and G as catalogue alternatives. This is the low-pressure regulator type, and its adjustment range is not published, so confirm it with us. Because flow is published as curves, not a single rating, ask us to check sizing against your application before ordering.
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 the GFR family as curves, not as a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow figures from the datasheet before you order.
The M in the code means the PC bowl is emptied by hand at its drain valve - simple and dependable where the unit is checked regularly. Automatic (A) and differential-pressure (blank) drain versions of the same 400-size filter regulator can be ordered instead if the installation runs unattended.
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.