The AirTAC GFR40015MF2WG AirTAC Filter Regulator G1/2, 5 um is a genuine G-series filter regulator: water separation, 5 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 GFR40015MF2WG is a size 400 GFR-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady, in one body. This configuration is built with a 1/2 inch port (G thread, with PT as the standard thread and G/NPT available as order options), a 5 um filter element for finer filtration than the standard 40 um grade, a manual drain for the polycarbonate bowl, an embedded square gauge scaled in psi, and the standard regulator type with an adjustment range of 0.05-0.9 MPa (7-130 psi). Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and options including automatic, manual or differential-pressure drains, 40 um or 5 um filtration, gauge or no gauge, and a reverse/check valve. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR40015MF2WG AirTAC Filter Regulator G1/2, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (G (BSPP) thread) |
| Filtering grade | 5 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. |
| (blank) | Mounting bracket included. |
| (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. |
| W | Filtering grade 5 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" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Feeding clean, regulated air to the tool-change and clamping circuits of a machining centre, where the 5 um element protects fine valves and the psi gauge lets maintenance set and check line pressure at a glance.
Conditioning the air feeding pneumatic cylinders on a bottling or carton-packing conveyor, with the manual drain emptied during scheduled changeovers and the regulator holding a steady setting for consistent cylinder speed.
A point-of-use filter regulator at an assembly workstation, taking air off the main header, knocking out water and particles at 5 um, and letting each bench run at its own set pressure read directly in psi.
Start with the size and port: the 400 size with a 1/2 inch port suits lines that move more air than the 200/300 sizes; step up or down against the flow your circuit actually needs. Choose the drain to match maintenance routines: manual drain (this model) is emptied by hand, automatic drain handles condensate without attention, and differential-pressure drain is the catalogue default. Pick 5 um filtration (this model) when downstream equipment needs finer air than the standard 40 um element, and choose the gauge scale you want to read: MPa, psi or bar. Thread is PT as standard, with G and NPT as order options; a mounting bracket is included with this unit.
One honest note before you order: AirTAC publishes flow for this family as curves, not as a single rated number, so we do not quote a flow figure here. Tell us your application and we will confirm the sizing against the datasheet on request.
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 family as curves rather than a single rated figure, so we do not quote a flow number here. Tell us your application and required flow, and we will confirm the sizing against the datasheet on request before you order.
The M in the code specifies a manual drain: condensate collected in the polycarbonate bowl is released by hand, which suits lines with regular maintenance rounds. The catalogue also offers an automatic drain (code A) and a differential-pressure drain (blank, the default) if you prefer hands-off condensate handling.
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.