
The AirTAC AirTAC GFR400-10 Filter Regulator (GFR40010MF1W) 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 PT3/8" 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 GFR40010MF1W is a genuine AirTAC GFR400-series filter regulator that removes water and fine particulate from compressed air and regulates downstream pressure in one body. The W in the code fits the fine 5 um filter element instead of the standard 40 um, making this 3/8 in PT, 400-size unit suitable where downstream valves and instruments are sensitive to smaller particles. It carries a manual drain bowl and the square embedded MPa gauge.
It is a genuine AirTAC part from the G-series, which covers 200 to 600 sizes with automatic, manual or differential-pressure drains, both 40 um and 5 um elements, and G or NPT thread options. Rated flow is published as curves rather than one figure, so we confirm the datasheet and flow numbers on request.
| Model | AirTAC GFR400-10 Filter Regulator (GFR40010MF1W) |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (PT 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, MPa 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. |
|---|---|
| 10 | Port size PT3/8". 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. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Conditioning the 3/8 in air branch that feeds lab actuated valves, sampling cylinders and pneumatic actuators on analytical instruments, where the 5 um element screens fine particles that could disturb instrument spools, with the MPa gauge documenting the regulated supply pressure.
At clean assembly benches for lenses, sensors or PCB handling equipment, this filter regulator supplies clean regulated air to air bearings, part-clamping and pick-and-place actuators; the 5 um element protects the small valve seats these stations rely on, and the manual drain is bled at shift start.
Installed ahead of an air-driven paint or coating system, the unit removes condensate and fine particulate from the shop air and regulates pressure to the applicator's stated supply setting; the 5 um element helps protect the fine air passages of the gun, and the manual drain is opened during setup and cleanup.
Pick the W version of this 400-size, 3/8 in model when the 40 um standard element is not fine enough - for example ahead of precision valves, gauges or pneumatic instruments - while staying at the same port size. The manual drain keeps the adjustment range at 0.05-0.9 MPa (7-130 psi) and suits attended machinery. Gauge scale is MPa here with psi and bar alternatives, the standard thread is PT with G (BSPP) and T (NPT) variants, and a mounting bracket is included. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
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.
The AirTAC datasheet gives flow for the GFR400 series as characteristic curves rather than a single rated figure, so no one number can be quoted here. Share your inlet pressure and downstream demand and we will confirm the curve and datasheet for this 5 um, 3/8 in model on request before you order.
The standard element filters to 40 um, which suits general plant air for cylinders and larger valves. The W code fits a 5 um element that also catches finer particles, which is what you want ahead of precision valves, instruments or coating equipment. Same body, same 3/8 in port and same regulator function - only the element grade changes, and the W variant is this model.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.