The AirTAC GFR400C15MJC2W 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 GFR400C15MJC2W is a size-400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration carries a PT1/2 (1/2 in) port with PT thread, a manual drain on the bowl, a 5 um filter element (the finer of the two catalogue grades), a round external gauge reading in psi, the standard regulator type, and no reverse/check valve. The bowl is polycarbonate at this size, and the unit is ordered without a mounting bracket. With manual draining, the regulator adjusts from 0.05 to 0.9 MPa (7-130 psi), and the maximum inlet pressure is 1.0 MPa (145 psi). Operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part from the G-series range, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um filtration, gauge and scale options, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rated figure, so we confirm the datasheet and flow figures for your application on request.
| Model | GFR400C15MJC2W 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 clean, regulated air to pneumatic clamps and tool-change cylinders on a machining centre, where the 5 um element helps protect sensitive valve internals and the psi gauge lets setters read setpoints directly.
Supplying the tape-head and flap-fold cylinders of a carton sealer on a packaging line, with the regulator holding a steady working pressure so case dimensions and seal quality stay consistent through the shift.
Preparing air for diverter gates and stopper cylinders along a bottling or conveying line, where the filter section removes water and particulate ahead of the valves and the manual drain suits a station visited during routine rounds.
Size and port are the first choice: the 400 size with its PT1/2 port sits in the middle of the G-series range, and the right step depends on the air demand of the circuit - step up or down through 200/300/400/600 if your flow needs differ. Because flow is published as curves and not a single rating, ask us to confirm sizing against your application before ordering. This unit has a manual drain, which means someone drains the bowl on a routine; if unattended drainage matters, the automatic or differential-pressure drain variants of the same size are worth comparing. The 5 um element on this code is the finer option over the 40 um standard - choose it where downstream equipment is sensitive to finer particles. The gauge here is the external round type with a psi scale; embedded square gauges and MPa or bar scales are the alternatives. Thread is PT as standard, with G and NPT available to order, and this code omits the mounting bracket (orderable with one) and the reverse/check valve.
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 G-series as performance curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number. Tell us your application and we will confirm the flow figures from the datasheet on request before you order.
The M in the code specifies a manual drain, so the bowl is emptied by hand on a routine you set. If you prefer the bowl to discharge without attention, the same GFR400 size is available with an automatic (A) or differential-pressure (blank) drain - note that the regulation range differs by drain type: 0.05-0.9 MPa with manual drain versus 0.15-0.9 MPa with automatic or differential-pressure drain.
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.