The AirTAC GFR400C10MLC1WTK AirTAC Filter Regulator NPT3/8 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 GFR400C10MLC1WTK is a size-400 filter regulator: it removes water and particulate from compressed air and reduces pressure in a single body. This configuration is built for a 3/8 in NPT port, carries the fine 5 um filter element (code W), drains by hand through its manual drain, and is the low-pressure type for circuits that run at reduced regulated pressure. It ships with a round MPa pressure gauge fitted, a reverse/check valve, and a mounting bracket.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of 40 um standard or 5 um fine filtration, manual, automatic or differential-pressure drains, square or round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR400C10MLC1WTK AirTAC Filter Regulator NPT3/8 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) |
On a packaging machine section that runs sealing or clamping actuators at reduced pressure, this filter regulator cleans the supply to 5 um and holds the lowered setting, with the round MPa gauge giving the operator a direct reading at the machine.
For a test bench or lab rig where instruments and small pneumatic fixtures need clean, finely filtered air at a low regulated setting, the 5 um element and low-pressure type regulator condition the bench supply in one 3/8 in NPT unit.
On a skid of air-operated valves and actuators fed from a plant ring main, this unit strips water and particles ahead of the valves and steps the pressure down to the level the actuator circuit was designed for, with the check valve holding the set circuit.
Start with the port and size: this unit is the 400 frame with a 3/8 in NPT thread, chosen when your line flow and pipework sit at the 3/8 in level - step up to size 600 or down to 300 if your circuit differs. Filtration here is the 5 um fine element; the standard element is 40 um, so pick 5 um when downstream valves, cylinders or instruments need cleaner air. The manual drain means an operator opens the bowl drain during checks - choose an automatic or differential-pressure drain code instead if you cannot rely on that routine. The gauge fitted is round with an MPa scale; psi and bar scales and a square gauge are alternatives. PT is the standard thread and G or NPT are order options - this unit is ordered in NPT. A bracket is included, and the reverse/check valve is fitted. Because flow is published as curves rather than a single rating, send us your application details and we will confirm sizing against 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.
AirTAC publishes flow for the GFR400 as curves, not as a single rated figure, so we do not quote a number. Tell us your application - line pressure, downstream demand and acceptable pressure drop - and we will confirm the flow figures from the datasheet before you order.
The M in the code selects the manual drain: moisture collected in the bowl is released by hand during inspection. If you cannot rely on that routine, order the automatic drain (code A) or the differential-pressure drain (blank code) variant instead - the drain choice is a real decodable option across the GFR series.
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.