The AirTAC GFR400-15C2 AirTAC Filter Regulator PT1/2, Round psi Gauge 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 PT1/2" 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 GFR400-15C2 is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single 1/2-inch (PT1/2) body. This configuration is the size-400 standard type with the 40 um standard filter element, a differential-pressure drain that bleeds condensate automatically as flow passes through, a fitted round gauge reading in psi, and the mounting bracket included. The polycarbonate bowl lets you see accumulated condensate at a glance, and the standard regulation range is 0.15-0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi).
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, PT, G or NPT thread options, automatic, manual or differential-pressure drains, an optional 5 um element (code W), and square or round gauges in MPa, psi or bar scales. Rated flow is published as curves rather than a single figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR400-15C2 AirTAC Filter Regulator PT1/2, Round psi Gauge |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (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 — round, psi 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. |
|---|---|
| 15 | Port size PT1/2". 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 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 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Feeding clean, pressure-stabilised air to the clamping and forming cylinders of a pneumatic stamping or clinching press, where a steady set pressure keeps stroke force consistent part after part.
Conditioning the air feed to carton-sealer and case-erector cylinders on a packaging conveyor line, filtering out water and pipe scale while holding the regulator setting the cylinder manufacturer specifies.
Point-of-use conditioning at a factory machine-cell air drop, delivering filtered and regulated air to actuators, air chucks and blow-off stations fed from a shared plant ring main.
Step up or down through the GFR sizes (200/300/400/600) to match the port and the flow your line needs; this size-400 unit carries a PT1/2 port, with G (BSPP) and NPT threads available as catalogue options if your pipework is not PT. Choose the drain to suit attendance: differential-pressure (this model) needs no daily attention, automatic drains condensate continuously, and manual suits infrequently visited installations. The 40 um element is the standard grade for general plant air; specify the 5 um W-code element where downstream equipment needs finer filtration. Gauges come as an embedded square gauge or an external round gauge (this model: round, psi scale) with MPa, psi or bar scales, and a bracket is included for panel or surface mounting.
Because rated flow is published only as curves and not as a single figure, ask us to confirm sizing against your application and flow demand before you order.
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 performance as curves rather than a single rated figure, so there is no one l/min or SCFM number we can quote honestly. Tell us your inlet pressure, set pressure and expected air demand, and we will confirm the sizing against the datasheet curves on request before you order.
The trailing C2 in the code specifies the external round gauge with a psi scale; the embedded square gauge is the standard fitting and MPa or bar scales are catalogue options. If your panel reads in bar or MPa, ask us to quote the equivalent GFR400-15 configuration with the scale 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.