Airtac GF Filter GF400C15AJ
The AirTAC Airtac GF Filter GF400C15AJ 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.
- TypeAir filter
- Port sizeSee datasheet
- Filtering grade40 µm
- DrainDifferential-pressure drain
- Inlet pressure0.15 - 1.0 MPa (22 - 145 psi)
- Bowl materialPC
- ThreadPT
- BracketMounting bracket included
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GF Filter GF400C15AJ
The AirTAC GF series is a dedicated compressed-air filter: it removes water and particulate from the air line and does nothing else - there is no pressure regulation and no lubrication in this unit. GF400C15AJ is the 400 size with a PT1/2 (Rc-equivalent PT) port, fitted with the automatic drain, which ejects collected condensate without anyone having to open the bowl. The standard 40 um filtration element suits general plant-air protection, and the 400-size polycarbonate bowl lets you see the liquid level at a glance. The J suffix means this version ships without a mounting bracket.
This is a genuine AirTAC part, distributed in the US with PT as the standard thread (G/BSPP and NPT are catalogue options to order). The G-series filter range runs from size 200 to size 600, with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, and an optional 5 um element (W). Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet values against your application before ordering.
Airtac GF Filter GF400C15AJ Technical Specifications
| Model | Airtac GF Filter GF400C15AJ |
|---|---|
| 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.
Model Code: Airtac GF Filter GF400C15AJ
| 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.
Size Class
- GF200PT1/8" - PT1/4"
- GF300PT1/4" - PT1/2"
- GF400PT3/8" - PT1/2"
- GF600PT3/4" - PT1"
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 |
Where the Airtac GF Filter GF400C15AJ Is Used
CNC machining-center air drop
Fit at the point-of-use drop feeding a CNC machining center's pneumatic tool-changer and clamping circuit, catching water and pipe scale before they reach the machine's air valves.
Bottling-line conveyor cylinders
Install upstream of the pneumatic cylinders and actuators that drive a bottling or packaging conveyor, keeping condensate out of the actuators during wet, humid production shifts.
Assembly-hall tool outlets
Mount on the ring-main take-offs feeding impact wrenches and air tools in an assembly hall, protecting the tools from rust and moisture carried in the plant air.
Is the Airtac GF Filter GF400C15AJ the Right Filter?
Start with the port and size step: 400 size with a 1/2 in PT port sits mid-range in the G-series line-up, one step above the 300/1/2 is not available, so if your line is plumbed in 1/4 or 3/8 you step down to GF300; if you need 3/4 or 1 in, step up to GF600. Drain choice matters in practice: automatic (as coded here, A) suits unmanned or hard-to-reach installations, manual suits attended points where someone drains on a routine, and the default differential-pressure drain bleeds condensate on flow changes. Element grade is 40 um as standard or 5 um with the W suffix - pick 5 um only where downstream equipment demands finer filtration.
Thread is PT as standard; order the G (BSPP) or T (NPT) variant if your piping is BSP or NPT. A bracket (omitted on this J version) is available for panel or wall fixing. Because published flow data is a set of curves and not a single rating, send us your line conditions and required flow and we will confirm the right size from the datasheet before you order.
Quick checklist
- ✓ Body size for your peak flow (See datasheet here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain: differential, automatic or manual
- ✓ Manual drain caps inlet at 0.9 MPa
- ✓ Thread PT, G (BSPP) or NPT
- ✓ Bracket needed, or order with J
Installation & Maintenance Notes
- check Mount vertically, bowl down, and follow the airflow arrow.
- check Put the filter first in the air-preparation line.
- check Keep inlet pressure within 0.15 - 1.0 MPa (22 - 145 psi).
- check Drain condensate before the bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Replace the 40 µm element when pressure loss rises.
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.
Airtac GF Filter GF400C15AJ FAQ
AirTAC publishes flow for this series as characteristic curves rather than a single rated figure, so quoting one number would be misleading. Send us your operating pressure and required flow and we will confirm the sizing from the datasheet on request before you order.
The A in GF400C15AJ specifies the automatic drain, which discharges collected condensate on its own - the right pick for unmanned installations or bowls mounted out of reach. The alternatives are the default differential-pressure drain and a manual drain; all three are catalogue options on the GF400 size.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac GF Filter GF400C15AJ
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, availability and lead time — usually within 7-8 hours.