The AirTAC GFR400C15AJF2WK 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 GFR400C15AJF2WK is a size 400 GFR filter regulator: it removes water and particulate from compressed air and holds downstream pressure in a single body. This configuration has PT1/2 ports, a 5 um filter element (code W, against the 40 um standard), an automatic drain that discharges condensate without manual attention, and a reverse/check valve fitted. Output pressure is set on the embedded square gauge, which reads in psi; an external round gauge in MPa, psi or bar scale is a catalogue option. Maximum inlet pressure is 1.0 MPa (145 psi), the regulation range is 0.15-0.9 MPa (20-130 psi), and the working temperature range is -5 to 70 C, non-freezing. The polycarbonate bowl suits this size, and no mounting bracket is included with this code (J).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and options for drain type (differential-pressure, automatic or manual), filter grade (40 um standard or 5 um), gauge scale and G or NPT threads in place of the PT standard. Flow is published as curves rather than a single rated figure, so ask us to confirm flow and other datasheet figures against your application before ordering.
| Model | GFR400C15AJF2WK 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) |
Feeding filtered, regulated air at 1/2 in to a machining centre's directional valves and pneumatic clamps: the 5 um element protects fine valve internals, and the automatic drain keeps condensate out of the supply without operator attention.
Supplying carton sealers and case-packing cylinders on a packaging line, where the regulator holds a consistent working pressure for repeatable jaw and pusher strokes and the check valve helps hold the setting through brief upstream dips.
Setting and holding clamping pressure on a production fixture or pneumatic press fed at 1/2 in, with the square psi gauge giving the operator a direct readout of the set clamping force pressure.
Choose the size and port step against the air your circuit actually consumes: this unit is size 400 with PT1/2 ports. Because flow is published as curves and not as a single rating, ask us to confirm sizing from the datasheet before you order. On this code the drain is automatic, which suits lines that run unattended; manual and differential-pressure drains are the other catalogue choices. The filter grade is 5 um (code W) for finer protection of downstream components; 40 um is the standard grade if your application needs only bulk water and particle removal. The gauge is the embedded square type reading in psi, with MPa or bar scales and an external round gauge available; PT is the standard thread and G (BSPP) or NPT are order options. This code carries no mounting bracket (J), so order the bracket variant if you panel- or wall-mount the unit.
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 curves, not as a single rated figure, so we do not quote a number here. Tell us your application and required flow, and we will confirm the sizing from the datasheet on request before you order.
The automatic drain discharges collected condensate from the bowl without manual attention, which suits lines that run unattended. Differential-pressure and manual drains are the other catalogue options, and the filter grade can be the 40 um standard instead of the 5 um element on this code - order the matching code for the combination you need.
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.