AirTAC GF400-15 Filter (GF40015J)
The AirTAC AirTAC GF400-15 Filter (GF40015J) 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 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 sizePT1/2"
- Filtering grade40 µm
- DrainDifferential-pressure drain
- Inlet pressure0.15 - 1.0 MPa (22 - 145 psi)
- Bowl materialPC
- ThreadPT
- BracketSupplied without bracket
- 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 GF400-15 Filter (GF40015J)
The GF40015J is an AirTAC G-series air filter: it removes water and particulate from compressed air and does nothing else - there is no pressure regulation and no lubrication. It is built on the 400 frame with a 1/2 in PT port and uses the standard 40 um filtration grade, the right choice for general shop-air duty feeding cylinders, tools and valves. Condensate is handled by the differential-pressure drain, the family default, and the J suffix means no mounting bracket, so the body mounts directly in the line. The 400-size polycarbonate bowl is rated for a maximum inlet pressure of 1.0 MPa (145 psi), the working temperature range is -5 to 70 C (non-freezing), and AirTAC lists the GF filter as having low pressure drop.
This is a genuine AirTAC G-series part. The GF family spans the 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in, differential-pressure, automatic or manual drain choices, 40 um standard or 5 um elements, and G (BSPP) or NPT thread options to order. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and flow figures for your application on request.
AirTAC GF400-15 Filter (GF40015J) Technical Specifications
| Model | AirTAC GF400-15 Filter (GF40015J) |
|---|---|
| Series | GF400 air filter |
| Port size | PT1/2" (PT thread) |
| Filtering grade | 40 µm |
| Drain type | Differential-pressure drain |
| Bracket | Supplied without bracket |
| 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 GF400-15 Filter (GF40015J)
| 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". |
| (blank) | Drain: Differential-pressure drain. Options are differential (blank), automatic (A) or manual (M). |
| J | Supplied without bracket. 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 · PT1/2" · 40 µm |
|---|---|
| One size down | GF300 |
| One size up | GF600 |
| Line order | Filter first, then regulator, then lubricator |
Where the AirTAC GF400-15 Filter (GF40015J) Is Used
Trailer Air Prep for Shop Tools
Used in a truck-maintenance bay on the 1/2 in drop feeding impact wrenches and chisels, the 40 um grade catches pipe scale and bulk water before it reaches the tools.
Belt Conveyor Take-Up Cylinders
Fitted inline ahead of the take-up and tensioning cylinders on a belt conveyor, the filter removes condensate and debris from the shop air, with the differential-pressure drain looking after the collected water.
Control Cabinet Pneumatic Feed
Installed on the supply entering a machine's pneumatic control cabinet, the standard 40 um grade gives general-duty protection for directional valves, and direct line mounting without a bracket suits tight cabinet layouts.
Is the AirTAC GF400-15 Filter (GF40015J) the Right Filter?
Start with size and port: the 400 frame with a 1/2 in PT port is the mid-range GF option, and stepping to 600 buys a larger port and more flow where a line needs it. The differential-pressure drain in this code is the zero-maintenance default that discharges as pressure drop builds; choose the automatic drain for unattended operation or a manual drain where an operator checks bowls routinely. The standard 40 um element suits general protection - specify the 5 um W version only where downstream components need finer filtration. Thread is PT as standard with G (BSPP) and NPT as catalogue options, and J means no bracket, keeping the body inline. AirTAC publishes flow as curves, not a single rating, so ask us to confirm sizing before ordering.
Quick checklist
- ✓ Body size for your peak flow (PT1/2" 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 GF400-15 Filter (GF40015J) FAQ
Not as a single number - AirTAC publishes filter flow as curves, not one rated figure, so we do not state a flow value. Share your line pressure and required air volume and we will confirm the datasheet flow curve for this 400-size, 1/2 in PT filter against your application before you order.
The differential-pressure drain in this code is the family default: it discharges collected condensate as the pressure drop across the element builds, with no moving routine for the operator. If your line runs unattended and you want condensate expelled continuously regardless of pressure drop, choose the A (automatic) drain version; a manual drain is the simplest choice where bowls are checked regularly.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Request a Quote for AirTAC GF400-15 Filter (GF40015J)
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, availability and lead time — usually within 7-8 hours.