The AirTAC GFR40010MLJC2K AirTAC Filter Regulator PT3/8 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 GFR40010MLJC2K is an AirTAC GFR400 series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is a size 400 unit with a PT3/8 (3/8 in) port, PT thread, a 40 um standard filter element, and a manual drain you open by hand to empty collected condensate. It is the low-pressure regulator type, fitted with an external round gauge reading in psi and a reverse/check valve that holds downstream pressure if the supply drops. No mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, drain choices (differential-pressure, automatic or manual), a 40 um standard or 5 um (W) element, gauge and thread options. Max working pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing). Flow is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application.
| Model | GFR40010MLJC2K AirTAC Filter Regulator PT3/8 Low-Pressure |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (PT 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 — round, 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). |
| C | Gauge shape: Round. 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. |
| (blank) | PT 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) |
Supplies filtered, low-pressure air to pneumatic clamps and hold-downs on a machining or assembly fixture, with the psi gauge letting an operator verify clamp circuit pressure at a glance.
Feeds regulated air to packaging machinery actuators that run at reduced pressure, where the check valve holds the set pressure if the main supply dips during a shift.
Filters and regulates the air feeding blow-off nozzles and air knives on a food or bottling line, with the 40 um element stopping pipe scale and the manual drain clearing accumulated water.
Size 400 with a 3/8 in port suits lines whose air demand sits in the middle of the GFR range; step up to size 600 or down to 300/200 against the published flow curves for your circuit. This unit is the low-pressure regulator type, so choose it where the working pressure is well below standard regulator territory - and confirm the exact adjustment band with us before ordering, since the low-pressure range is published separately. The manual drain needs an operator to open it periodically; pick an automatic or differential-pressure drain variant instead where nobody will be on hand to drain the bowl. The 40 um element is the standard grade; specify the W code for a 5 um element if downstream equipment needs finer filtration. The fitted round gauge reads in psi; square embedded gauges and MPa/bar scales are the other gauge options. PT thread is standard on this code, with G (BSPP) and NPT available as order options, and the J code means no mounting bracket is supplied. Because flow is published as curves, not a single rating, send us your application details and we will confirm sizing 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 series as curves, not as a single rated number, so we do not quote a flow figure for this unit. Send us your line pressure, port size and downstream demand and we will confirm the sizing against the datasheet curves on request before you order.
The M in the code selects a manual drain: condensate collects in the polycarbonate bowl and an operator opens the drain by hand to empty it, which suits stations that are checked during routine rounds. If nobody will be nearby, order the automatic (A) or differential-pressure (blank) drain variant instead. The trailing K fits a reverse/check valve, which holds downstream pressure if the upstream supply is lost.
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.