The AirTAC GFR400C15AJF3TK 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 GFR400C15AJF3TK is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a 1/2 in NPT port, an automatic drain that expels collected condensate without manual attention, a 40 um standard filter element, an embedded square gauge reading in bar, and a fitted reverse (check) valve. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi) against a maximum inlet pressure of 1.0 MPa (145 psi), and the unit operates from -5 to 70 C (non-freezing). No mounting bracket is included with this code.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with a choice of port sizes, PT, G or NPT threads, differential-pressure, automatic or manual drains, 40 um or 5 um (W) filtration, gauge scale options, and reverse-valve or bracket variants. Flow is published as curves rather than a single rated figure, so contact us and we will confirm the datasheet figures for your application on request.
| Model | GFR400C15AJF3TK 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) |
Feeding clean, pressure-controlled air to tool-clamp and pallet-change cylinders on a machining centre, with the automatic drain keeping condensate out of the valves during long unattended runs.
Conditioning and regulating air for carton-forming and sealing cylinders on a packaging conveyor, where the bar-scale square gauge lets operators set and verify line pressure at a glance.
Serving as the filter-regulator stage for a robotic assembly cell, delivering 40 um-filtered air at a set pressure to grippers and pick-and-place actuators, with the check valve holding downstream settings.
Size 400 with a 1/2 in port sits in the upper-middle of the GFR range; step up to size 600 or down to 300/200 depending on the flow your line needs - we can check the published flow curves against your demand before you order. Drain choice matters: the automatic drain on this code suits unattended installations, while manual and differential-pressure drains are alternatives within the family. Filtration is 40 um standard on this unit; specify the W code for 5 um where finer particle capture is required. The embedded square gauge here reads in bar; MPa and psi scales, and an external round gauge, are order options. Thread is NPT on this code, with PT as the standard and G (BSPP) available to order. Brackets are optional (this code omits one), and the K code adds a reverse/check valve. Ask us to confirm sizing against the flow curves 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 there is no one rated flow number to quote. Send us your required flow and working pressure and we will confirm the datasheet figures for this exact configuration on request.
The A code in GFR400C15AJF3TK specifies an automatic drain, which expels collected condensate from the bowl without operator attention. Within the GFR family you can also order a manual drain (M) or the differential-pressure drain (blank code); the automatic option is the usual choice for installations that run unattended.
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.