
The AirTAC Airtac GF Filter GF400C15MJW 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.
GF400C15MJW is an AirTAC G-series air filter whose sole function is removing water and particulate from compressed air - it does not regulate pressure and does not lubricate. The 400 frame takes a PT1/2 port, the W code selects the finer 5 um element in place of the 40 um standard, and the M code provides a manual drain you operate yourself, with a 0 to 0.9 MPa inlet range. The J code omits the mounting bracket. The polycarbonate bowl is rated for the -5 to 70 C operating window.
This is a genuine AirTAC part from the G series, which runs in 200, 300, 400 and 600 frame sizes with a choice of differential-pressure, automatic or manual drains, 40 um or 5 um elements, G (BSPP) or NPT threads, and a bracket where required. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and check the sizing against your application before ordering.
| Model | Airtac GF Filter GF400C15MJW |
|---|---|
| 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 |
On a lab's compressed-air ring feeding benchtop instruments and actuated fittings, the 5 um element removes fine particles that coarse filters pass, and the manual drain is emptied during routine lab checks.
Ahead of the air jets on a weaving shed's looms, the 5 um grade helps keep jet orifices clear of particulate, with the manual drain bled off each shift to control accumulated condensate.
Installed on the instrument-air take-off of a process skid, the filter's fine 5 um element guards positioners and small-bore fittings from particle fouling while the manual drain handles collected water.
Select the frame size - 200, 300, 400 or 600 - against port size and demand; the 400 body with PT1/2 ports serves mid-to-large air lines. This model's 5 um element (W) is the finer option for protecting sensitive valves and instruments, while the standard grade is 40 um. The manual drain (M) suits accessible, regularly serviced points; differential-pressure (blank) and automatic (A) drains cover unattended ones. Threads are standard PT, with G (BSPP) and NPT available to order, and the J code deletes the bracket for inline mounting. Because AirTAC publishes flow as curves, not a single rating, 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.
No single rated flow figure applies - AirTAC publishes G-series flow as performance curves. Give us your line pressure and demand and we will confirm the datasheet figures and verify that this 400 frame is correctly sized on request.
The standard GF element grade is 40 um; the W code fits a 5 um element that captures much finer particles for sensitive downstream equipment. If general protection of cylinders and tools is all you need, the 40 um standard grade is usually the simpler choice.
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.