
The AirTAC AirTAC GF400-15 Filter (GF40015A) is a genuine G-series air filter. It separates condensed water and filters particulate from the compressed-air line through a 40 µm element, with PT1/2" ports and a automatic drain. A filter does not set downstream pressure — pair it with a GR regulator, or use a GFR filter regulator, when pressure control is needed.
The GF40015A is an AirTAC G-series air filter: its job is filtration only - water and particulate removal, with no regulation and no lubrication. This 400-size configuration has a PT 1/2 in port, the standard 40 um element, and an automatic drain (the A suffix) that ejects collected condensate from the bowl on its own, so the unit keeps working in attended or unattended positions without someone cracking a manual drain. The bowl is polycarbonate at this size, and the bracket is included.
This is a genuine AirTAC part from the GF family, offered in sizes 200 through 600 with drain, element grade and thread options. We confirm datasheet and flow-curve figures for your application on request, since rated flow is published as curves rather than a single number.
| Model | AirTAC GF400-15 Filter (GF40015A) |
|---|---|
| Series | GF400 air filter |
| Port size | PT1/2" (PT thread) |
| Filtering grade | 40 µm |
| Drain type | Automatic drain |
| Bracket | Mounting bracket included |
| Fluid | Compressed air |
|---|---|
| Inlet pressure | 0.15 - 1.0 MPa (22 - 145 psi) |
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Bowl material | PC |
| Feature | Low pressure loss |
Specifications follow the official AirTAC G-series air-preparation data. The inlet-pressure band is set by the drain type: automatic and differential-pressure drains run 0.15 - 1.0 MPa, a manual drain runs 0 - 0.9 MPa. 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.
| GF400 | G-series air filter, 400 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 10 = PT3/8", 15 = PT1/2". |
| A | Drain: Automatic drain. Options are differential (blank), automatic (A) or manual (M). |
| (blank) | Mounting bracket included. A bracket ships by default; J orders it without. |
| (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. |
Field order is size, port, drain, bracket, grade, thread — a blank position takes the default. Example: GF300-10AJW is a 300 body, PT3/8", automatic drain, no bracket, 5 µm element, PT thread.
A larger body carries a larger port and passes more air at the same pressure drop. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom rather than from a single rated figure. The GF600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GF400 · PT1/2" · 40 µm |
|---|---|
| One size down | GF300 |
| One size up | GF600 |
| Line order | Filter first, then regulator, then lubricator |
Filters the shop-air supply at a commercial-vehicle service bay, with the automatic drain coping with condensate between service visits.
Conditions the 1/2 in air feeding an industrial robot's pneumatic gripper circuit, where an unattended automatic drain keeps the bowl from flooding.
Installed on a 1/2 in branch line in a food-processing plant to remove water and debris from compressed air serving washdown-adjacent actuators.
You are at the 400 size with a PT 1/2 in port and automatic drain - a good fit where a 1/2 in line must be filtered and the drain cannot rely on operator rounds. If your condensate load is light and drains are checked routinely, the differential-pressure or manual-drain versions of the same size exist. Filtration grade is the standard 40 um here; specify the W version for the 5 um fine element. Thread is PT as standard with G (BSPP) and NPT as catalogue options, and the mounting bracket is included.
Flow data for this family is published as curves, not a single rating, so ask us to confirm the sizing and send the datasheet before you order.
Quick checklist
The PC bowl must not be cleaned with solvents or exposed to synthetic oils that attack polycarbonate — wipe it with a dry cloth. A filter removes water and particulate only; it does not regulate pressure or add lubrication.
Yes - on request. AirTAC publishes flow for the GF400 series as performance curves rather than a single rated figure, so we do not state one number here. Share your flow and pressure conditions and we will confirm the datasheet figures for you.
The A selects the automatic drain: the bowl discharges accumulated condensate by itself instead of relying on the differential-pressure action of the default drain or on manual draining. Everything else about the 400 size, the PT 1/2 in port and the 40 um element stays the same.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, availability and lead time — usually within 7-8 hours.