The AirTAC GFR40010ALC2WGK AirTAC Filter Regulator G3/8, 5 um is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT3/8" 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 GFR series combines a filter and a pressure regulator in a single body: compressed air is cleaned of water and particulate, then regulated downstream. This GFR400 configuration is a size 400 unit with a G3/8 (BSPP) port, a 5 um filter element (the finer of the two published grades), an automatic drain that discharges collected condensate without manual attention, and a low-pressure regulator type. It is supplied with a round psi gauge and a reverse/check valve fitted, and the polycarbonate bowl is mounted on the included bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, drain choices (differential-pressure, automatic or manual), 40 um standard or 5 um filtration, gauge and scale options, and PT, G or NPT threads. Rated flow is published as curves rather than a single figure, so ask us to confirm sizing and the datasheet for your application before ordering.
| Model | GFR40010ALC2WGK AirTAC Filter Regulator G3/8, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (G (BSPP) thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure 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 — round, 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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. |
|---|---|
| 10 | Port size PT3/8". 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)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) 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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Filtered, low-pressure-regulated air to clamping cylinders on a machining cell, with the 5 um element helping protect precision valve seals from particulate carryover.
Air preparation for seal bars and diverters on a wrapping line: the automatic drain handles condensate from humid compressor air while the regulator holds a steady low set pressure.
Clean, regulated air for pick-and-place modules and small actuators on lab automation, with the round psi gauge giving a familiar local pressure readout at the station.
Choose the size and port step (200/300/400/600, 1/8 to 1 inch) against the flow your line needs - the larger the size, the larger the port and flow path; we confirm exact flow from the datasheet curves on request. Drain: this unit is automatic; the differential-pressure drain (default) and a manual drain are also available in the family. Filtration: 40 um standard, 5 um (this unit, code W) where finer protection is needed. Gauge: the embedded square gauge is standard with MPa, psi or bar scales, or an external round gauge as fitted here (psi). Thread: PT is the standard; G (BSPP) and NPT are order options - this unit is G. A mounting bracket is included. If your circuit runs at low set pressures, the L-type regulator in this code is the relevant choice; we confirm its exact adjustment range on request.
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 GFR400 flow as performance curves rather than a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the flow and the full datasheet figures on request.
The A in this code specifies an automatic drain, which ejects collected condensate without operator attention - useful on lines that run unattended. The GFR family also offers the differential-pressure drain (the default) and a manual drain; choose according to your maintenance routine.
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.