The AirTAC GFR400C15AJF1WT 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 See datasheet 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 GFR400C15AJF1WT is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady, in a single body. This unit is the size GFR400 with a 1/2 in NPT port, a 5 um filter element (code W, against the 40 um standard), an automatic drain that expels condensate from the polycarbonate bowl without manual attention, and the embedded square gauge scaled in MPa. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), and no mounting bracket is fitted.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and the catalogue options include manual or differential-pressure drains, a 40 um standard element, external round gauges with MPa, psi or bar scales, G (BSPP) or NPT threads, and a reverse/check valve. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application.
| Model | GFR400C15AJF1WT AirTAC Filter Regulator NPT1/2 |
|---|---|
| Series | GFR400 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard 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. |
|---|---|
| C1 | Port size See datasheet. 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT 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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
Mounted at the drop feeding a machining center, it cleans the shop air of water and swarf-carrying particles and holds a steady setting for the machine's pneumatic valves, clamps and tool-change cylinders.
On a cartoning or wrapping line, it conditions the air feeding seal bars, pusher cylinders and diverters, keeping the pressure the operators set regardless of what the compressor room is doing.
At the air drop for a robotic welding cell, it filters condensate out before the weld-gun clamps and fixture cylinders and regulates the supply so clamp force stays consistent through the shift.
The real choices in this family are the size and port step, the drain type, the filter grade and the gauge. Size 400 with a 1/2 in port sits in the upper half of the range; step down to 300 or up to 600 depending on the air demand of your line - because flow is published as curves and not as a single rating, ask us to confirm sizing against your application before ordering. This code carries the automatic drain; manual and differential-pressure drain versions exist in the same size if your maintenance routine prefers them. The 5 um element (code W) suits points of use that need cleaner air than the 40 um standard. The square gauge reads in MPa; psi or bar scales and an external round gauge are orderable. The thread here is NPT, G (BSPP) is the other catalogue option, and PT is the standard thread. No bracket is fitted with this code.
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 figure, so we do not quote one number. Send us your line pressure and the air demand of your equipment and we will confirm the datasheet curve and check the sizing for your application before you order.
The A in the code fits the automatic drain, which expels collected condensate from the polycarbonate bowl on its own - useful on drops that are not checked daily. Manual and differential-pressure drain versions are available in the same size if your maintenance routine prefers them, and the filter grade can also be specified as the 40 um standard instead of this unit's 5 um element.
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.