The AirTAC GFR400C15AJF2WG AirTAC Filter Regulator G1/2 Auto Drain 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 GFR400C15AJF2WG is a size 400 filter regulator: water and particulate filtration plus pressure regulation in a single body. This configuration carries G1/2 (BSPP) ports, a 5 um filter element (the W grade, finer than the 40 um standard), an automatic drain that bleeds condensate from the polycarbonate bowl without manual attention, and a standard-type regulator adjustable from 0.15 to 0.9 MPa (20-130 psi). An embedded square gauge with a psi scale is fitted, and no mounting bracket or reverse/check valve is included on this variant. 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 GFR400 sits in the GFR range, which spans sizes 200, 300, 400 and 600 with a choice of ports, drain types, 40 um or 5 um filtration, gauge scales and PT, G or NPT threads. Flow is published in the catalogue as curves rather than a single rated figure, so if you need a flow or datasheet number for sizing, ask us and we will confirm it on request.
| Model | GFR400C15AJF2WG AirTAC Filter Regulator G1/2 Auto Drain |
|---|---|
| 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) |
Point-of-use preparation for a CNC machining center's pneumatic valves and tool-clamp cylinders: the 5 um element protects fine spool valves from particulate and condensed water, while the regulator holds a steady supply pressure to the clamp circuit.
Conditioning the air feeding conveyor stopper and pusher cylinders on a bottling line. The automatic drain keeps condensate out of the bowl on a line that runs unattended across shifts, and the psi square gauge lets maintenance verify set pressure at a glance.
Supplying regulated air to the clamping cylinders of a pneumatic assembly press. Filtered, regulated air at a stable setpoint gives repeatable clamp force, and the G1/2 port suits the larger cylinder volumes typical of press circuits.
Size 400 with G1/2 ports is the step to choose when your line's flow demand sits above what a 300-size unit comfortably passes - match the size/port step to your required flow before fixing anything else. This unit already carries the 5 um (W) element; drop to the 40 um standard grade if your actuators tolerate coarser air and you want less element loading. The automatic drain suits unattended installations; a manual drain (M) or the differential-pressure default are the alternatives if you prefer controlled blowdown. The fitted square gauge reads in psi; MPa or bar scales and an external round gauge are order options. G (BSPP) thread is the specification here, with PT and NPT available to order, and this variant ships without a bracket - add the bracket option if you panel- or surface-mount.
One honest note before you order: AirTAC publishes GFR flow as curves, not a single rated number, so send us your application's flow and pressure conditions and we will confirm the correct size against the datasheet before you commit.
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 GFR flow as curves in the catalogue rather than a single rated figure, so we do not quote a l/min, m3/h or SCFM number. Send us your application's flow and pressure conditions and we will confirm the sizing against the datasheet on request before you order.
The A in the code GFR400C15AJF2WG specifies an automatic drain, which expels collected condensate from the bowl without operator attention - useful on unattended or hard-to-reach installations. The GFR400 is also available with a manual drain (code M) or the differential-pressure drain (blank code) if you prefer controlled or demand-based blowdown. Note that with an automatic drain the regulator adjustment range is 0.15-0.9 MPa (20-130 psi).
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.