The AirTAC GFR40015LJF2T 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 differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR40015LJF2T is a GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body, so one component does both jobs ahead of your valves and cylinders. This size 400 unit is built with 1/2 in NPT ports, the standard 40 um filtration grade, and a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element is high enough. It is the low-pressure (L) type, comes with the embedded square gauge scaled in psi, has no reverse/check valve fitted, and ships without a mounting bracket.
This is a genuine AirTAC part from the GFR range, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um (W) filtration, gauge scale options, and G, NPT or PT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR40015LJF2T AirTAC Filter Regulator NPT1/2 Low-Pressure |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure 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. |
|---|---|
| 15 | Port size PT1/2". This body offers 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 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. |
| (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 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Clean, regulated air ahead of clamping cylinders on a machine-tool press line, where the low-pressure regulator type and psi-scaled gauge let operators set and read the clamping circuit directly.
Point-of-use prep for packaging lines running diverters, sealers and case-eject cylinders, with the differential-pressure drain keeping condensate out of the valves without daily manual draining.
A 1/2 in filtered-and-regulated drop feeding an assembly cell's actuators and air tools, replacing a separate filter and regulator pair with one GFR body and one bowl to maintain.
Start with the port step: this unit is size 400 with 1/2 in NPT ports; step up or down in the 200/300/400/600 range if your line size or air demand calls for it, and match the thread to your piping - PT is the standard, with G (BSPP) and NPT as order options. Choose the drain for how the unit will be tended: differential-pressure (as fitted here) drains on demand, automatic (A) drains continuously, and manual (M) needs an operator. Pick 40 um for general air prep or the 5 um (W) grade where finer filtration matters, and select the gauge scale - MPa, psi or bar - to suit your crew. Bracket (J deletes it) and the low-pressure (L) regulator type are also decodable choices. Because flow is published as curves, not a single rating, send us your application details and we will confirm sizing against the datasheet before you order.
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 G-series flow as curves, not as a single rated figure, so we do not quote a rated flow, Cv or SCFM number for this unit. Send us your application - line pressure, downstream demand and acceptable pressure drop - and we will confirm the sizing against the datasheet on request before you order.
The code position F2 decodes to the embedded square gauge with a psi scale, which is fitted as standard on this unit. If your plant reads in MPa or bar, the gauge scale is a decodable choice (1 = MPa, 2 = psi, 3 = bar), and an external round gauge is also available as an option - just order the matching code.
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.