The AirTAC GFR40015AJC3WT AirTAC Filter Regulator NPT1/2, 5 um is a genuine G-series filter regulator: water separation, 5 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 AirTAC GFR40015AJC3WT is a size 400 filter regulator: water and particulate filtration plus downstream pressure regulation in a single body, with a 1/2 in NPT port. This configuration carries the 5 um filter element (code W) for finer particle removal than the standard 40 um grade, an automatic drain that bleeds collected condensate from the polycarbonate bowl without manual attention, and an external round pressure gauge scaled in bar. The standard regulator adjusts from 0.15 to 0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing). No mounting bracket is fitted and no reverse/check valve is included.
This is a genuine AirTAC part from the GFR filter-regulator family, 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 filtration, square or round gauges in MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm flow and datasheet figures for your application before ordering.
| Model | GFR40015AJC3WT AirTAC Filter Regulator NPT1/2, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard 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, bar 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. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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)). |
| (blank) | Standard 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. |
| W | Filtering grade 5 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" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Feeds clean, regulated air to the tool-change clamps and pneumatic actuators on a machining centre, where the 5 um element protects fine-tolerance valves from particles and the automatic drain keeps condensate out of the circuit between shifts.
Prepares air for the cylinders and grippers on a carton packaging conveyor, holding a steady regulated pressure so sealing and diverting motions stay repeatable while the auto-drain bowl handles moisture from a humid plant.
Conditions the supply to pneumatic loom and winding-machine actuators, where fine 5 um filtration guards the machine's control valves and the bar-scaled round gauge lets operators check set pressure at a glance during rounds.
Sizing a GFR starts with the port step: this unit is size 400 with a 1/2 in NPT port, one step up from the 3/8 in size 400/10 and below the 3/4 in size 600, so match the size to the flow your line needs. Drain type is a real choice: automatic (as fitted here) suits unattended duty, manual suits periodic checks, and the default differential-pressure drain uses line pressure drop to purge. Filter grade is 40 um standard or 5 um (code W) for finer protection - this unit carries the 5 um element. Gauge options are the embedded square gauge or an external round gauge, in MPa, psi or bar scales; this unit has the round gauge in bar. Thread is PT as the catalogue standard, with G and NPT as order options - this unit is NPT. Bracket (J = none) and reverse/check valve (K) are also selectable.
Because flow is published as curves rather than a single rating, 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. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR400 as curves, not as a single rated number, so we do not quote a figure. Tell us your inlet pressure, set pressure and required flow, and we will confirm from the datasheet whether this 1/2 in unit is correctly sized before you order.
The A in the code fits an automatic drain, which purges condensate from the polycarbonate bowl on its own - the right choice for unattended or hard-to-reach installations. Manual drain (code M) costs less attention on paper but needs an operator to open the drain, and the default differential-pressure drain purges on a line pressure drop. If your duty cycle differs, we can quote the same unit in another drain variant.
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.