The AirTAC GFR400-15AJC2WG AirTAC Filter Regulator, G1/2, 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 GFR400-15AJC2WG is a size-400 filter regulator: it removes water and particulate from compressed air and sets downstream pressure in a single body. This configuration is threaded G1/2 (BSPP), carries a 5 um filter element for finer filtration than the standard 40 um grade, and uses an automatic drain that expels collected condensate without manual attention. The fitted round gauge reads in psi, and the regulator is the standard type with an adjustment range of 0.15-0.9 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).
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with a choice of ports, threads (PT standard, G and NPT as order options), drain types, filter grades and gauge styles. Flow is published as curves rather than a single rating, so we confirm the datasheet figures for your application on request.
| Model | GFR400-15AJC2WG AirTAC Filter Regulator, G1/2, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (G (BSPP) 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, 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. 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. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) 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) |
Feeding filtered, regulated air to a workshop pneumatic press or clamp cylinder, where the 5 um element protects the valve and cylinder seals and the psi gauge lets operators set and check working pressure at the machine.
Supplying air to diverters, pushers and gripper cylinders on a packaging conveyor, with the automatic drain keeping condensate out of the line during continuous shifts and the regulator holding a stable setting for repeatable actuator speed.
Conditioning the compressed air feed to a laboratory or test-bench ring main, where the finer 5 um grade and automatic drain protect sensitive instruments and the regulator sets a controlled pressure for bench-mounted equipment.
Size and port set the flow capacity: the 400 size with its 1/2 in port suits lines with higher air demand than the 200 or 300 sizes, while the 600 size covers the largest duties. Choose the automatic drain on this unit where condensate must be removed without operator attention; manual and differential-pressure drains are available on other variants. The 5 um element (code W) is the finer option against the standard 40 um grade, and the round psi gauge is one of the gauge styles and scales (MPa, psi, bar) offered across the range. Thread here is G (BSPP); PT is the standard and G/NPT are order options, and a mounting bracket can be specified. Flow is published as curves, not a single rating, so 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 series as curves, not as a single rated figure, so there is no one l/min or SCFM number we can quote. Send us your application details and we will confirm the flow and datasheet figures for this unit on request.
The A in the code sets the automatic drain: the bowl expels collected condensate on its own, with no manual bleeding. Choose it for unattended or continuous-duty installations; manual and differential-pressure drain variants are available if you prefer operator-controlled or pressure-differential draining.
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.