
The AirTAC Airtac GF Filter GF400C15MJ 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 See datasheet ports and a differential-pressure 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.
GF400C15MJ is an AirTAC G-series air filter: it removes water and particulate from compressed air and nothing else - no regulation, no lubrication. The 400 frame carries a PT1/2 port, the element is the standard 40 um grade, and the M code gives a manual drain you operate yourself, with a 0 to 0.9 MPa inlet range. The J code omits the mounting bracket, suiting direct plumbing into pipework or machine-built manifolds. The polycarbonate bowl is rated for -5 to 70 C.
This is a genuine AirTAC part from the G series, available in 200, 300, 400 and 600 sizes with differential-pressure, automatic or manual drains, 40 um or 5 um elements, G (BSPP) or NPT thread options, and a bracket where needed. AirTAC publishes flow as curves rather than a single rated figure, so ask us to confirm the datasheet and verify sizing for your application before ordering.
| Model | Airtac GF Filter GF400C15MJ |
|---|---|
| Series | GF400 air filter |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Drain type | Differential-pressure 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. |
|---|---|
| C1 | Port size See datasheet. This body offers 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure 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 · See datasheet · 40 µm |
|---|---|
| One size down | GF300 |
| One size up | GF600 |
| Line order | Filter first, then regulator, then lubricator |
For OEM panels and skids, the bracketless 400 body is plumbed directly into the machine's PT1/2 air riser, stripping water and 40 um particles before the machine's own valve terminals and cylinders.
Installed in the supply leg of a palletiser's vacuum and gripper actuators, the filter removes condensate and scale that would otherwise gum check valves and cause dropped layers.
On compressed-air operators for warehouse dock doors and levellers, the manual drain lets the site technician bleed off collected water during routine rounds, keeping door cylinders moving smoothly.
Choose the frame - 200, 300, 400 or 600 - against the port and demand of your circuit; the 400 body with PT1/2 ports fits mid-to-large plant lines. The 40 um element is the standard grade for protecting cylinders, valves and tools; the W option gives a finer 5 um grade. This manual-drain version (M) suits accessible, routinely serviced points; differential-pressure (blank) and automatic (A) drains serve unattended positions. Threads are standard PT with G (BSPP) and NPT to order, and the J code deletes the bracket for inline or panel-plumbed installations. Since flow is published as curves, ask us to confirm sizing from the datasheet before ordering.
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.
We do not quote a single rated flow because AirTAC publishes G-series flow as performance curves, not one figure. Share your line pressure and required flow and we will confirm the datasheet numbers and check this 400 frame against your application on request.
The J code means no mounting bracket is supplied with the filter, so it is intended for direct inline plumbing or machines where the piping itself carries the unit. Without the J, the 400 frame ships with a bracket included.
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.