The AirTAC GFR400C15AJF3T AirTAC Filter Regulator NPT1/2 Square Gauge 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 GFR400C15AJF3T is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration has a 1/2 in NPT port, an automatic drain that expels collected condensate without manual attention, a 40 um standard filter element, and an embedded square gauge reading in bar. The standard regulator covers 0.15-0.9 MPa (20-130 psi), and the unit is rated to 1.0 MPa (145 psi) maximum inlet pressure with an operating temperature of -5 to 70 C (non-freezing). The polycarbonate bowl suits the 400 size, and no mounting bracket is included with this code.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, drain choices (differential-pressure, automatic or manual), an optional 5 um element (code W), gauge scale options, and G or NPT thread variants. Flow is published as curves rather than a single rating, so we confirm flow and datasheet figures for your application on request.
| Model | GFR400C15AJF3T AirTAC Filter Regulator NPT1/2 Square Gauge |
|---|---|
| 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) |
Feeding clean, regulated air to the tool-change and clamping circuits of a CNC machining centre, with the automatic drain keeping condensate out of the valves during unattended shifts.
Regulating supply pressure to pneumatic cylinders and grippers on a carton-forming and sealing conveyor, where the 40 um element protects directional valves from particulate carryover.
A point-of-use filter regulator at the drop feeding assembly-cell air tools and fixtures, with the bar-scale square gauge giving operators a local pressure reference at the station.
Step up or down through the size range (200/300/400/600) to match the port and flow requirement of your line - the 400 size with a 1/2 in port sits in the upper-middle of the range. Choose the drain to suit access: automatic (this code) for unattended condensate removal, manual where you prefer operator-controlled blows, or the differential-pressure default. The 40 um element is standard; specify code W for the 5 um grade where finer particulate removal matters. Gauge scale (MPa, psi or bar - bar on this unit), thread (PT standard, G or NPT to order) and bracket inclusion are all selectable.
Because AirTAC publishes flow as curves rather than one rated figure, 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 rather than a single rated figure, so we do not quote a number here. Tell us your application and required flow, and we will confirm the sizing from the datasheet on request.
The A in the code selects the automatic drain: collected condensate is expelled without manual attention, which suits unattended or hard-to-reach installations. The F3 selects the embedded square gauge with a bar scale; MPa and psi scales and an external round gauge are available as options.
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.