The AirTAC GFR400C15ALF2WG AirTAC Filter Regulator G1/2, 5 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 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 GFR400C15ALF2WG is a size-400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is built with G1/2 ports, an automatic drain that ejects collected condensate without manual attention, a fine 5 um filter element (the 40 um standard element is also available in this series), and a low-pressure regulator type fitted with an embedded square gauge reading in psi. The bowl is metal, a mounting bracket is included, and no reverse/check valve is fitted.
This is a genuine AirTAC part in the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um filtration, 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 to confirm sizing and datasheet details for your application before ordering.
| Model | GFR400C15ALF2WG AirTAC Filter Regulator G1/2, 5 um |
|---|---|
| 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 cleaned, pressure-controlled air to a bank of directional valves on a carton-forming and sealing line, with the automatic drain keeping condensate out of the manifold during continuous shifts.
Conditioning the air ahead of a small pneumatic press or clamping fixture, where the 5 um element protects the cylinder seals and the low-pressure regulator holds a gentle, repeatable working pressure.
Providing filtered, regulated air to actuators and sensor-driven grippers on a bottling or filling line, with the psi-scaled square gauge giving operators a direct local pressure readout.
Choose the GFR400 size step when your line's port and flow requirements sit at the 1/2 inch level; smaller duties can step down to GFR200 or GFR300, larger ones to GFR600. The 5 um element in this unit suits air that feeds sensitive components; the standard 40 um grade is the economical choice for general shop air. The automatic drain here is the low-maintenance option - pick manual drain only if you prefer operator-controlled blowdown, or differential-pressure drain to dump condensate on a set pressure drop. The square gauge reads psi; MPa and bar scales and an external round gauge are alternatives. Thread is G here, with PT as the standard and NPT orderable. A bracket is included; a reverse/check valve can be specified on other variants.
Because flow for this series is published as curves and not a single rated figure, send us your application details and we will confirm sizing against the datasheet before you order.
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 GFR series as curves rather than a single rated number, so we do not quote a figure that is not in the datasheet. Send us your application conditions and we will confirm the flow and sizing data for this exact model on request before you order.
The L-type regulator in this configuration is the low-pressure version of the GFR400, intended for circuits that run below standard working pressures; its exact adjustment range is not published in the material we hold, so we confirm it on request. The automatic drain (code A) discharges collected condensate by itself, so the bowl does not need manual blowdown - a good fit for unattended or continuously running equipment.
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.