The AirTAC GFR40015MJF2G AirTAC Filter Regulator G1/2, Manual Drain 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 manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR40015MJF2G is a size-400 filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady, in a single compact body. This unit is supplied with a G1/2 (BSPP) port, 40 um standard filtration, a manual drain on the bowl, and an embedded square gauge reading in psi. The standard regulator covers an adjustment range of 0.05-0.9 MPa (7-130 psi), and the maximum working (inlet) pressure is 1.0 MPa (145 psi). Operating temperature range is -5 to 70 C (non-freezing), and the polycarbonate bowl gives a clear view of condensate level.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600, with port options from 1/8" to 1", PT as standard and G or NPT as order options, plus choices of drain type, 40 um or 5 um filtration, gauge scale, bracket and reverse/check valve. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and flow figures for your application on request.
| Model | GFR40015MJF2G AirTAC Filter Regulator G1/2, Manual Drain |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (G (BSPP) thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, 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 0.05 - 0.9 MPa (7 - 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. 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. |
| G | G (BSPP) 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) |
Feeds clean, pressure-stabilised air to a forming or crimping press, so the ram repeats consistently shift after shift while the 40 um element keeps scale and pipe debris out of the cylinder seals.
Mounted at the drop feeding a CNC machining centre's tool-change and clamping circuits, filtering condensate from the main line and holding the set pressure the clamps were designed around.
Conditions the air going to vacuum generators and gripper cylinders on an assembly robot, with the psi gauge letting technicians verify set pressure during changeover and the manual drain cleared at scheduled service.
For this size-400 unit with a G1/2 (BSPP) port, step up or down through sizes 200/300/400/600 if your line needs a different port or flow capacity - flow is published as curves, not a single rating, so ask us to confirm sizing against your air demand before ordering. The manual drain on this unit means someone opens the drain to clear condensate; if you want unattended drainage, choose automatic or differential-pressure drain versions instead. Filtration is 40 um standard; specify the W option for 5 um where finer protection is needed. The fitted square gauge reads in psi; MPa and bar scales, and an external round gauge, are available. Thread is G (BSPP) here - PT is the standard thread, with G and NPT as catalogue options to order. A mounting bracket is not included with this configuration (code J), and no reverse/check valve is fitted.
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 l/min, m3/h or SCFM number. Tell us your port size and air demand and we will confirm the flow figures from the datasheet for your application on request.
The M in the code means the polycarbonate bowl is drained by hand: an operator opens the drain to release collected condensate, which suits installations visited during routine rounds. If the unit is mounted in an inaccessible spot or runs unattended, order the automatic (A) or differential-pressure (blank) drain version instead - same filter regulator, different drainage.
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.