The AirTAC GFR40010MLJF2TK 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 GFR40010MLJF2TK is an AirTAC GFR400 series filter regulator: filtration and pressure regulation combined in one body. It removes water and particulate from compressed air with a 40 um filter element, then regulates downstream pressure as a low-pressure type. This configuration has 3/8 in NPT ports, a manual drain bowl in polycarbonate (PC), an embedded square pressure gauge reading in psi, and a reverse/check valve fitted. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). No mounting bracket is included on this variant.
This is a genuine AirTAC part. The GFR filter-regulator family is published in sizes 200, 300, 400 and 600, with port options from 1/8 to 1 in, PT as the standard thread and G or NPT as order options, a choice of manual, automatic or differential-pressure drains, a 5 um (code W) filter grade alternative, gauge scale choices of MPa, psi or bar, and bracket or no-bracket variants. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR40010MLJF2TK 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 | 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. |
| J | Supplied without bracket. |
| (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) |
Clean, regulated air feeding the tool-change clamps and air-blast nozzles on a machining centre, where the manual drain suits a shift-based purge routine and the psi gauge lets operators set the circuit at a glance.
Supplying filtered, pressure-controlled air to the cylinders and grippers on a carton packing conveyor, with the reverse/check valve holding the downstream circuit if the upstream supply is interrupted.
A low-pressure regulated drop serving air-operated valves and light pneumatic tooling on a factory manifold, where the 40 um element protects downstream components from water and pipe scale.
This unit is already decoded: GFR400 size, 3/8 in NPT ports, manual drain, 40 um filtration, low-pressure regulation, square psi gauge, reverse/check valve fitted, no bracket. If you are selecting within the family, step up or down the size (200/300/400/600) against the port and the flow your line needs, choose the drain type (manual for occasional purging, automatic or differential-pressure for hands-off condensate removal), and pick 40 um standard or 5 um (W) where finer filtration is required. Gauge scale (MPa, psi or bar), thread (PT standard, G or NPT to order) and bracket inclusion are also decodable choices.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated number, and the exact regulation range of the low-pressure type is not stated on the datasheet we transcribe. Tell us your line pressure band and air demand and we will confirm the right size and figures on request 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 the GFR family as curves, not as a single rated figure, so we do not quote a number here. Send us your line pressure and air consumption and we will confirm the datasheet curve and sizing against your application on request before you order.
The L in the code marks this as the low-pressure regulation type rather than the standard type; the exact adjustment range for the low-pressure variant is not published on the datasheet we transcribe, so we confirm it on request. Regulation range is set on the regulator body and read on the fitted square gauge, which on this model is scaled in psi.
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.