The AirTAC GFR40015F2K AirTAC Filter Regulator PT1/2, 40 um 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 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 GFR40015F2K is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady, in a single 400-size body with a PT1/2 (1/2 in) port. This configuration carries the standard 40 um filter element with a differential-pressure drain that bleeds collected condensate automatically whenever the pressure drop across the bowl is high enough, so there is no drain fitting to attend by hand. The embedded square pressure gauge reads in psi, a reverse/check valve is fitted to hold the set pressure if upstream supply is interrupted, and the mounting bracket is included for panel or wall fixing.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, optional 5 um filtration (code W), automatic or manual drains, alternative gauge scales, and G or NPT threads to order. The maximum working pressure is 1.0 MPa (145 psi), the standard regulation range is 0.15-0.9 MPa (20-130 psi), and the operating temperature is -5 to 70 C (non-freezing). Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application.
| Model | GFR40015F2K AirTAC Filter Regulator PT1/2, 40 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (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 — square, psi 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". |
| (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). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 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. |
| 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) |
Feeding the air cylinder of a bench or C-frame press: the 40 um element keeps weld spatter and pipe scale out of the valve stack, the regulator holds a steady working pressure stroke to stroke, and the check valve keeps the set pressure from bleeding back if the plant supply dips.
Supplying the grippers, diverters and flap cylinders on a carton packaging conveyor: clean, regulated air stops erratic actuator timing, the differential-pressure drain copes with condensate carried over from the ring main, and the PT1/2 port matches the main drop leg.
Dropping a regulated branch off the compressor receiver in a plant air room: the filter regulator conditions the branch feeding air tools and blow-off stations, the psi square gauge gives operators a local setpoint readout, and the included bracket mounts the unit straight onto the backplate.
Start with the port step: the 400 size takes PT1/2 here, and the sensible move is to size the body against the air demand of the machine rather than the pipe alone - larger sizes carry more flow at the same pressure drop. If your line needs finer filtration than the standard 40 um element, the W option gives 5 um; if the bowl sits where operators cannot reach it, compare the differential-pressure drain fitted here with the fully automatic (A) and manual (M) variants. The gauge in this code is the embedded square type reading psi; MPa and bar scales and an external round gauge are alternatives. PT thread is the standard on this model, with G (BSPP) and NPT available as order options, and the bracket is included.
One honest note before you order: AirTAC publishes flow for this series as curves, not as a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the datasheet flow and sizing against your requirement before you commit.
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 performance curves rather than a single rated figure, so we do not quote a number here. Tell us your working pressure and air demand and we will confirm the datasheet flow curve and check the sizing for your application before you order.
The blank drain code on GFR40015F2K means a differential-pressure drain: it purges the bowl automatically when the pressure drop from collected condensate gets high enough, with no operator action. If you would rather have a fully automatic float drain or a simple manual drain, the A and M code variants of the same unit cover those choices.
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.