The AirTAC GFR40010MLF2T AirTAC Filter Regulator NPT3/8, Low-Pressure 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 GFR40010MLF2T is an AirTAC GFR400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built on the size-400 frame with a 3/8 in NPT port, a polycarbonate bowl with a manual drain, the 40 um standard filter element, and the low-pressure regulator type. A square pressure gauge scaled in psi is fitted as standard, a mounting bracket is included, the 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 in, drain choices (manual, automatic or differential-pressure), an optional 5 um element (code W), gauge scales in MPa, psi or bar, and G (BSPP) or NPT threads as order options alongside the PT standard. Flow for this model is published as a curve rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR40010MLF2T AirTAC Filter Regulator NPT3/8, Low-Pressure |
|---|---|
| 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 | 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. 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. |
| (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" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Filtered, regulated air to paint spray guns and atomising nozzles, where the low-pressure regulator type holds a reduced downstream setting and the 40 um element keeps water and particulate out of the finish.
Supplying conditioned air to clamping fixtures and swing cylinders on machining centres, with the square psi gauge giving the operator a direct reading at the machine and the manual drain suiting a supervised cell.
Point-of-use conditioning for carton sealers, case packers and labelling heads, combining water and particulate removal with pressure regulation in one body to protect the actuators and valves on the line.
Match the size and port step to your air demand: this unit is size 400 with a 3/8 in NPT port, and the GFR range steps from 1/8 to 1 in across sizes 200 to 600. Drain type is a real decision: this configuration uses a manual drain (the bowl is drained by hand), while automatic and differential-pressure drains suit unattended installations. The element here is the 40 um standard grade; specify code W for the 5 um grade where finer filtration is needed. The fitted square gauge reads in psi; round external gauges and MPa or bar scales are options. Thread: this model is NPT; PT is the standard thread and G (BSPP) is an order option. A mounting bracket is included. Flow is published as curves, not a single rating, so 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 GFR400 as a curve, not a single rated figure, so we do not quote a number here. Send us your air demand and line pressure and we will confirm the datasheet figures and check the sizing against your application before you order.
This model is coded M for a manual drain: the bowl is drained by hand, which suits attended installations. The GFR400 is also available with an automatic or differential-pressure drain for unattended duty - ask us for those codes. The bowl on this size is polycarbonate, and the element is the 40 um standard grade (5 um available as code W).
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.