The AirTAC GFR40015AC2WG AirTAC Filter Regulator G1/2, 5 um, Auto Drain 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 PT1/2" 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 GFR40015AC2WG is an AirTAC GFR400 filter regulator: water and particulate filtration plus downstream pressure regulation in a single body, sized for a 1/2 in port with G (BSPP) thread. This configuration carries the 5 um filter element (code W, finer than the 40 um standard), an automatic drain that discharges collected condensate without manual attention, a round pressure gauge reading in psi, and a mounting bracket. The polycarbonate bowl is standard at this size, and the maximum inlet pressure is 1.0 MPa (145 psi) with an operating temperature range of -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, gauge style and scale options, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR40015AC2WG AirTAC Filter Regulator G1/2, 5 um, Auto Drain |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (G (BSPP) thread) |
| Filtering grade | 5 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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, psi 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. |
|---|---|
| 15 | Port size PT1/2". 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)). |
| (blank) | Standard 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. |
| (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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Mounted at the drop feeding a pneumatic press or clamping station, it removes water and fine particles from the shop air and holds the working pressure set for the tooling, with the automatic drain clearing condensate between cycles.
On the air feed to a cartoning or wrapping machine, the 5 um element protects directional valves and cylinders from particulate carry-over while the regulator keeps actuator pressure stable through the machine cycle.
Feeding bench-top test rigs or laboratory automation, the fine 5 um filtration and the psi-reading round gauge give operators a clean, monitored supply, and the automatic drain keeps the bowl clear during long unattended runs.
Size the GFR400 step by the port and flow your line needs: this unit is the 400 size with a 1/2 in port and G thread; smaller and larger steps (200/300/600, 1/8 in to 1 in) exist if your flow demand differs. Drain choice matters in use: automatic drain (this unit) suits unattended duty, manual drain suits periodic checks, and differential-pressure drain is the catalogue default. Filter grade is a real trade-off: 40 um is standard, while the 5 um element fitted here protects finer downstream components. Gauge style and scale (embedded square or external round; MPa, psi or bar) and thread (PT standard, G or NPT to order) are also decodable choices.
One honest note on sizing: AirTAC publishes flow for this family as curves, not a single rated number, so we cannot 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 family as curves, not as a single rated figure, so we do not quote a rated flow, Cv or l/min number here. Tell us your application and required flow, and we will confirm the sizing against the datasheet curves on request before you order.
The A in the code selects the automatic drain, which discharges collected condensate from the bowl without anyone opening it - useful on lines that run unattended. The catalogue also offers manual drain (code M) and the differential-pressure drain (blank), which is the default. Filter grade is another choice: 40 um is standard and the 5 um element (code W) is fitted on this model.
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.