The AirTAC GFR400C15AC2WG 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 GFR400C15AC2WG is an AirTAC GFR400 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration decodes to a G1/2 (BSPP) port, a 5 um filter element (the fine W grade), an automatic drain, a round external pressure gauge with a psi scale, the standard regulator type, and a mounting bracket included; no reverse/check valve is fitted. In service, incoming compressed air drops out condensate and particles down to 5 um in the bowl, and the regulator sets downstream pressure anywhere in the 0.15-0.9 MPa (20-130 psi) adjustment range. 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 from the GFR400 size of the G-series air-treatment line. Across the GFR family you can choose sizes 200, 300, 400 and 600 with ports from 1/8 in up to 1 in, a differential-pressure (default), automatic or manual drain, the 40 um standard element or the 5 um W option, and a gauge scale in MPa, psi or bar; PT is the standard thread with G and NPT available as order options. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application.
| Model | GFR400C15AC2WG 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) |
Placed at the drop feeding a CNC machine's pneumatic actuators and clamping fixtures, the unit strips condensate and fine particles from the shop air line and holds a steady regulated pressure so clamps and tool-change cylinders behave consistently through the shift.
On the air line serving spray guns and air-assisted applicators in a finishing booth, the 5 um element removes water and particulate that would otherwise blemish the finish, while the regulator lets operators set and hold the delivery pressure each gun was set up for.
Mounted on the supply to carton-sealing and case-erecting cylinders along a packaging conveyor, the unit conditions the plant air and keeps working pressure stable, and the automatic drain handles condensate on a line that runs unattended for long stretches.
Start with the port step: the 400 size carries a 1/2 in port, and moving up or down a size (200/300/400/600) changes both the port and the flow capacity, so match the size to the air demand of the circuit rather than to the pipe alone. This unit already carries the 5 um fine element; if your application tolerates coarser filtration, the 40 um standard grade is the default choice, and the finer element suits points of use that are sensitive to particles. The automatic drain on this unit discharges collected condensate without anyone opening it - a good fit where bowls are hard to reach - while manual and differential-pressure drains are the alternatives in the family. The fitted round gauge reads in psi; MPa and bar scales are the other options, and the embedded square gauge is the standard style. Thread is G (BSPP) here, with PT as the catalogue standard and NPT orderable; a bracket is included.
One honest note on sizing: AirTAC publishes GFR flow as performance curves, not as a single rated number, so we do not quote a rated flow figure here. Send us your application details and we will confirm the sizing against the datasheet curves 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 performance curves rather than a single rated figure, so we do not state a rated flow, Cv or SCFM number here. Tell us your application and operating conditions and we will confirm the relevant flow figures from the datasheet on request.
The A in this model code selects the automatic drain, which discharges collected condensate from the bowl without manual attention - useful where the unit is mounted out of reach or the line runs continuously. The GFR family also offers a manual drain and a differential-pressure drain (the default), and the drain choice affects the regulator adjustment range quoted in the catalogue.
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.