The AirTAC GFR400C15AJC2W AirTAC Filter Regulator PT1/2 5 um is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has See datasheet ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR400C15AJC2W is a size 400 filter regulator: water and particulate filtration plus downstream pressure regulation in a single body. This configuration carries a 5 um filter element (the W grade, finer than the 40 um standard), an automatic drain that ejects collected condensate without manual attention, and a round pressure gauge reading in psi. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), the working temperature range is -5 to 70 C (non-freezing), and the ports are PT1/2 with PT as the standard thread (G and NPT are order options). The 400-size bowl is polycarbonate (PC), and this unit ships without a mounting bracket and without a reverse/check valve.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in. Across the series you can order differential-pressure, automatic or manual drains, 40 um or 5 um filtration, embedded square or external round gauges with MPa, psi or bar scales, PT, G or NPT threads, and bracket or no-bracket mounting. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR400C15AJC2W AirTAC Filter Regulator PT1/2 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard scale |
| Reflux valve | Not fitted |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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.
| GFR400 | G-series filter regulator, 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 — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (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. |
| (blank) | No reverse-flow valve (the default). |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR400 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
Filter and regulate the compressed air feeding spray guns in a paint booth: the 5 um element removes water and particulate that would ruin finish quality, and the regulator holds a steady gun supply pressure, with no lubricator in the path to contaminate the paint film.
Feed the pneumatic cylinders and actuators of a cartoning or case-packing machine along a packaging conveyor: the automatic drain keeps condensate out of the valves during continuous shifts, and the psi gauge lets operators set and check the actuator pressure at a glance.
Regulate the air supply to grippers and valve manifolds in a robotic assembly cell: clean, regulated air at a set pressure keeps end-of-arm tooling repeatable, and the 5 um grade protects the sensitive directional valves downstream of the unit.
Start with the size and port: the 400 frame with PT1/2 ports is the right step when your line flow sits above what a 300-size unit comfortably passes - match the size step to your required flow and let us confirm the exact figure, since GFR flow is published as curves, not a single rating. This unit already fixes three choices for you: 5 um filtration (choose this over the 40 um standard when downstream valves, cylinders or instruments need finer air), an automatic drain (prefer a manual drain only where someone can reliably bleed the bowl, or differential-pressure where you want drain action tied to flow), and a round psi gauge (square embedded gauges and MPa or bar scales are the alternatives). Thread is PT as standard with G and NPT available to order, and the J code means no mounting bracket - order a bracketed variant if the unit will not be mounted on the machine body. Before ordering, send us your application parameters and we will confirm sizing against the datasheet.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as characteristic curves, not as a single rated number, so there is no one l/min or SCFM figure we can honestly quote. Send us your application - working pressure, downstream consumption and acceptable pressure drop - and we will confirm the sizing against the datasheet on request.
The W in the code GFR400C15AJC2W selects the 5 um filter grade, one step finer than the 40 um standard, for applications where downstream valves, cylinders or instruments need cleaner air. The A selects an automatic drain, which ejects collected condensate on its own instead of relying on manual bleeding or differential-pressure action. Both are catalogue options across the GFR range, so you can order the 40 um grade or a manual/differential drain if your application suits them better.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.