The AirTAC GFR40015AF1TK 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 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 GFR40015AF1TK is a size 400 filter regulator: it removes water and particulate from compressed air and sets downstream pressure in a single body. This configuration carries a 1/2 in NPT port, an automatic drain that bleeds collected condensate from the PC bowl without manual attention, a 40 um standard filter element, an embedded square pressure gauge scaled in MPa, and a built-in reverse/check valve that holds the downstream setting if upstream supply is interrupted. The regulator adjusts from 0.15 to 0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and the unit operates from -5 to 70 C in non-freezing conditions. A mounting bracket is included.
This is a genuine AirTAC part from the GFR range, which spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, a choice of automatic, manual or differential-pressure drains, an optional 5 um element (code W), gauge scales in MPa, psi or bar, and PT, G or NPT threads. Flow figures for this series are published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR40015AF1TK AirTAC Filter Regulator NPT1/2 |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (NPT 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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, MPa scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Feeds filtered, pressure-set air to the tool-clamp and chuck-actuation circuits of a CNC machining centre, with the check valve holding the clamp setting through supply dips and the automatic drain keeping condensate out of the valves.
Sits at the drop point feeding the air cylinders that divert cartons on a bottling or packaging conveyor, giving the gate actuators clean air at a stable, repeatable setting shift after shift.
Conditions the supply to the pick-and-place cylinders and air grippers in a robotic assembly cell, where the 40 um element protects the directional valves and the regulator pins the working pressure for consistent cycle behaviour.
Size 400 with a 1/2 in port suits lines whose air demand sits in the upper mid-range of the G-series; step up to size 600 or down to 300 depending on the flow curve for your consumption - we can check the curve against your application before you order. Drain choice matters: this unit's automatic drain empties the bowl unattended, while manual and differential-pressure drains are the other catalogue options. The 40 um element is the standard grade; specify code W for the 5 um fine grade if downstream equipment needs it. The fitted square gauge reads in MPa; psi or bar scales and an external round gauge are available. This code carries the NPT thread; PT is the standard thread and G (BSPP) is the other order option. A bracket is included with this configuration.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as curves, not as a single rated number, so there is no one figure we can honestly quote. Send us your air consumption and line conditions and we will confirm the datasheet curve figures for this 1/2 in size 400 unit on request before you order.
The A in the code selects the automatic drain, which expels collected condensate from the PC bowl on its own - useful where the unit is mounted in a hard-to-reach spot. The catalogue also offers a manual drain and a differential-pressure drain (the default) on GFR units if you would rather control draining yourself.
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.