
The AirTAC GFR Filter Regulator GFR400C15AJF1 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 GFR series filters and regulates compressed air in one body: a drain bowl with a replaceable element removes water and particulate, then an integrated regulator sets the downstream working pressure. The GFR400C15AJF1 is the size 400 frame with a 1/2 in PT (standard) port, automatic drain, the standard 40 um element and an embedded square pressure gauge reading in MPa. Maximum inlet pressure is 1.0 MPa (145 psi); with the automatic drain the regulation range is 0.15-0.9 MPa (20-130 psi), and the PC (polycarbonate) bowl with a -5 to 70 C (non-freezing) temperature range suits normal indoor plant air.
This is a genuine AirTAC part. The G series covers sizes 200, 300, 400 and 600 (larger sizes give larger ports and more flow), with drain, element-grade, gauge, thread and bracket options across the range; G (BSPP) and NPT threads are catalogue choices besides the standard PT. Flow performance is published as curves rather than a single rated figure, so ask us to confirm datasheet and sizing details for your application on request. Medium is compressed air only.
| Model | Airtac GFR Filter Regulator GFR400C15AJF1 |
|---|---|
| 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) |
Point-of-use cleaning and pressure setting on the air drop feeding a machining centre's pneumatic clamps and chip-ejection nozzles, with the 1/2 in port matching a main plant-air branch.
Supplying and regulating the cylinders that divert, push and stop cartons on a bottling or cartoning line, with the automatic drain handling condensate from humid plant air.
A branch-line filter regulator for loom and winding-machine circuits, removing pipeline water and rust scale before it reaches the machine's air jets and cylinders.
Size 400 with a 1/2 in PT port sits at the upper-middle of the G range (200/300/400/600); move up or down a frame if your branch line demands it, or select 3/4 in (20) or 1 in (25) ports in the same frame. Drains are offered as differential-pressure (default), automatic (this code) and manual - automatic empties the bowl without operator attention and carries the 0.15-0.9 MPa (20-130 psi) regulation span. The 40 um element is standard; the W suffix selects the finer 5 um grade. Gauge scale (MPa, psi or bar), G or NPT thread and a mounting bracket are orderable options; this code omits the bracket. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your 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 G-series performance as flow curves rather than one rated figure, so there is no single flow number we can honestly quote. Tell us your working pressure and air consumption and we will confirm the sizing from the datasheet on request.
A stands for an automatic drain: condensate collected in the PC bowl is expelled without manual attention. The alternatives in this series are a differential-pressure drain (blank) and a manual drain (M); with an automatic drain the regulation range is 0.15-0.9 MPa (20-130 psi).
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), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.