The AirTAC GFR40015ALJC2TK AirTAC Filter Regulator NPT1/2 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 automatic 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 GFR40015ALJC2TK is an AirTAC GFR400 filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This 400-size unit is fitted with 1/2 in NPT ports, an automatic drain that expels collected condensate without manual attention, the standard 40 um filter element, a round pressure gauge reading in psi, a reverse/check valve that holds downstream pressure when the supply is lost, and it ships without a mounting bracket. As a low-pressure (L) type it is intended for circuits that run below standard regulated pressures. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing); the polycarbonate bowl suits 200/300/400 sizes.
This is a genuine AirTAC part. The GFR line spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options include manual or differential-pressure drains, a 5 um (W) filter element, square or round gauges with MPa, psi or bar scales, G or NPT threads, brackets and a reverse valve. Rated flow is published as curves rather than a single figure, so ask us to confirm datasheet figures for your application before ordering.
| Model | GFR40015ALJC2TK AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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 | Automatic 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. |
|---|---|
| 15 | Port size PT1/2". This body offers 10 = PT3/8", 15 = PT1/2". |
| A | Drain: Automatic 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). |
| 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. |
| 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) |
Feeds and regulates the air to clamping fixtures on a CNC machining line, where the automatic drain keeps condensate out of the fixtures and the check valve holds clamp pressure if the main supply drops.
Installed at the drop feeding carton-sealing and wrapping machines, filtering water and debris from the shop air line and holding a steady low regulated pressure to the machine's valve manifold.
Used on a process skid to condition and regulate the air supply to solenoid valves and pneumatic actuators, with the psi gauge giving operators a local pressure readout at the panel.
Start with the port step: this unit is size 400 with 1/2 in NPT ports, one step up from 3/8 in and one below 3/4 in, so match the size to the air demand of the circuit rather than oversizing on guesswork. Drain choice matters: automatic (this unit, code A) empties the bowl on its own, manual (M) needs operator attention, and differential-pressure (blank) drains on a pressure drop. Filter grade is 40 um standard here; specify 5 um (code W) only where finer particulate control is genuinely needed. Gauge options are the embedded square type or an external round gauge (this unit, code C) with MPa, psi or bar scales - this one reads psi. Thread is NPT here; PT is the standard catalogue thread and G (BSPP) is also orderable. Brackets are optional (this unit has none, code J), and K adds a reverse/check valve. Because rated flow is published as curves rather than a single number, 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. 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 performance curves rather than a single rated figure, so there is no one rated flow number we can quote. Tell us your application and we will confirm the flow and datasheet figures for this unit on request before you order.
A is the automatic drain, which expels condensate from the bowl without manual attention. L is the low-pressure regulator type. C is the external round gauge, reading in psi (scale 2). T is the NPT thread option, and K means a reverse/check valve is fitted, holding downstream pressure if the supply is interrupted.
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.