The AirTAC GFR40015MLJC3TK AirTAC Filter Regulator NPT1/2 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 PT1/2" 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 GFR40015MLJC3TK is an AirTAC GFR400 filter regulator: filtration and pressure regulation combined in one body. It removes water and particulate from compressed air through a 40 um element and regulates downstream pressure with its low-pressure type regulator, so one unit does the job that would otherwise need a separate filter and regulator. This configuration is built for 1/2 in NPT ports, drains moisture by hand through its manual drain, carries a fitted round gauge reading in bar, and includes a reverse (check) valve so downstream pressure is held if the supply drops. No mounting bracket is fitted, so plan to mount it in-line or on your own plate.
This is a genuine AirTAC part from the GFR400 size in the G-series range, which steps through sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in and PT, G or NPT threads. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application before you order.
| Model | GFR40015MLJC3TK AirTAC Filter Regulator NPT1/2 Low-Pressure |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (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 — round, bar 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. |
|---|---|
| 15 | Port size PT1/2". 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. |
| 3 | Gauge scale: bar. 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 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
On a stamping or assembly press with 1/2 in air drops, this filter regulator cleans the supply of water and swarf and holds a steady low set pressure to the clamping cylinders, with the check valve holding the clamp if the main supply drops.
Cartoning and wrapping machines run many small valves off one 1/2 in header; a GFR400 at the machine inlet strips condensate and particles and gives each station a stable, low regulated supply, with the bar gauge giving operators a quick visual check.
Purge, agitate or actuation circuits that must run well below normal shop pressure suit the low-pressure regulator type; the 40 um element protects downstream instruments and the manual drain fits supervised, regularly checked installations.
Start with the port and size: this unit is the 400 size with 1/2 in NPT ports, the right step when your main air line is 1/2 in and your circuit needs the flow capacity of the larger G-series frame. Because flow is published as curves rather than one rated number, send us your flow requirement and we will confirm the GFR400 curve covers it before you order. On drain choice, this model uses a manual drain, which suits installations where someone checks the bowls on a routine; if you would rather not rely on that, ask about automatic or differential-pressure drain variants. The 40 um element is the standard grade; a 5 um element (code W) is available if the application needs finer filtration. The fitted round gauge reads in bar; square embedded gauges and MPa or psi scales are the other catalogue options. Thread is NPT here, with PT as the standard and G (BSPP) also available to order. This is the low-pressure regulator type and no bracket is fitted; the exact regulation range for the low-pressure type is not published, so confirm it with us against your set pressure.
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 G-series flow as curves, not as a single rated number, so we do not quote a figure here. Send us your line size and required flow and we will confirm against the GFR400 datasheet curve on request before you order.
The manual drain means moisture collected in the polycarbonate bowl is released by opening the drain by hand, so the unit suits installations checked on a routine. The regulator is the low-pressure type, intended for set pressures below the standard range; the exact range is not published, so confirm your set pressure with us. This model also carries a round bar-scale gauge, a reverse (check) valve, and no mounting bracket.
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.