
The AirTAC AirTAC GFR400-10 Filter Regulator (GFR40010MJC1W) 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 GFR40010MJC1W is an AirTAC GFR400 filter regulator fitted with the fine 5 um (W) filter element: one body that removes water and fine particulate from compressed air and regulates downstream pressure. This 400-size unit has a 3/8" PT port, a manual-drain polycarbonate bowl, and an external round gauge on the MPa scale. With manual drain, the regulation range is 0.05-0.9 MPa (7-130 psi); maximum inlet pressure is 1.0 MPa (145 psi) and operating temperature is -5 to 70 C. The J suffix means no mounting bracket is fitted; a bracket is available as an option.
This is a genuine AirTAC part distributed in the US market. The GFR series spans sizes 200 to 600 with ports from 1/8" to 1", differential-pressure, automatic or manual drains, 40 um standard or 5 um (W) elements, embedded square or external round gauges in MPa, psi or bar scales, an optional K reverse valve, and G (BSPP) or NPT threads to order. Flow appears in the catalogue as curves rather than a single rated figure, so we confirm datasheet numbers and sizing on request.
| Model | AirTAC GFR400-10 Filter Regulator (GFR40010MJC1W) |
|---|---|
| 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 — round, 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. 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) |
Supplies filtered, regulated air to gauges, transducers and reference instruments on a laboratory or QA test bench, where the 5 um element keeps fine particles out of sensitive devices.
A point-of-use filter regulator feeding valve positioners and I/P devices on a process skid, with the MPa gauge allowing technicians to verify supply pressure during calibration.
Conditions air for pick-and-place nozzles and fine actuation on an electronics assembly cell, where the finer 5 um grade suits small, close-tolerance pneumatic components.
The W in this code is the deciding choice: it selects the 5 um element instead of the 40 um standard, for circuits feeding precision valves, air bearings-adjacent tooling or instrumentation that tolerate less particulate. Everything else decodes the same as the plain model: 400 size, 3/8" PT port, manual drain (widening the regulation range to 0.05-0.9 MPa), round gauge on the MPa scale, and no bracket (J). If your supply uses G (BSPP) or NPT threads, order those catalogue variants instead. Weigh the finer grade against servicing: a 5 um element loads faster than 40 um in dirty air. Since AirTAC publishes flow only as curves, not a single rating, ask us to confirm sizing from the datasheet 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.
There is no single rated flow to quote: AirTAC publishes GFR400 performance as characteristic curves. Give us your line pressure and required consumption and we will confirm the appropriate figures from the datasheet on request before you commit to an order.
Take the 40 um standard for general cylinders and air tools, and the 5 um W element (this code) when the downstream equipment is finer-tolerance, such as positioners, precision valves or instrumentation. Both fit the same GFR400 body, so the choice is about the air quality your equipment needs, not the port.
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.