The AirTAC GFR400C15ALJF1T AirTAC Filter Regulator NPT 1/2 in 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 GFR400C15ALJF1T is an AirTAC GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in one body. This size 400 unit carries a 1/2 in NPT port, a 40 um standard filter element and an automatic drain that ejects collected condensate from the polycarbonate bowl without manual attention. The regulator is the low-pressure type and is fitted with an embedded square gauge scaled in MPa; no mounting bracket is included with this variant. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options that include manual or differential-pressure drains, a 5 um element (code W), external round gauges with MPa, psi or bar scales, G (BSPP) or NPT threads in place of the PT standard, and mounting brackets. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR400C15ALJF1T AirTAC Filter Regulator NPT 1/2 in |
|---|---|
| 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) |
Filtered, regulated supply air to the clutch and control valves of a mechanical punch press, with the automatic drain handling condensate carryover from a humid compressor room.
Feeding pick-and-place cylinders and diverter valves on a carton packaging line, where the low-pressure regulator holds a gentle set-point for delicate gripper action.
Clean regulated air for blow-off nozzles clearing dust and chips along a conveyor line, with the 40 um element protecting the nozzles from particulate carryover.
Step through the GFR sizes (200/300/400/600) to match port and required flow; this unit is size 400 with a 1/2 in NPT port. Choose the drain: automatic (this unit) for hands-off condensate removal, manual for periodic draining, or differential-pressure as the catalogue default. Filter grade is 40 um standard; specify W for the 5 um element where finer particulate protection is needed. The embedded square gauge is standard with an MPa scale on this unit; psi or bar scales and an external round gauge are options. Thread: PT is the standard, while G (BSPP) and NPT (this unit) are order options. No bracket is included with this variant; brackets are optional in the family. The regulator here is the low-pressure type and its exact adjustment range is not published in the standard tables, so confirm it against your set-point with us. Because flow is published as curves, not a single rating, ask us to confirm sizing against the application before ordering.
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 GFR flow as curves rather than a single rated figure, so we do not quote a number here. Send us your line pressure and required flow and we will confirm the sizing from the datasheet on request.
The A in the code gives an automatic drain, which ejects collected condensate from the bowl without anyone opening it - useful on lines that run unattended. Manual and differential-pressure drains are available in the same family if you prefer a different arrangement.
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.