The AirTAC GFR400C10MLC2WTK AirTAC Filter Regulator NPT3/8 5um 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 GFR400C10MLC2WTK is an AirTAC GFR400 filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration is built for 3/8 in NPT ports, carries a 5 um filter element (code W) for finer filtration than the standard 40 um grade, and drains via a manual drain valve that you open by hand to empty collected condensate. It is the low-pressure (L) type, so it is intended for circuits set below the standard regulator range - contact us for the exact published adjustment span. A round pressure gauge reading in psi is fitted, a reverse/check valve (K) is installed, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR filter-regulator family spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um elements, standard or low-pressure regulation, embedded square or external round gauges in MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures for your application on request.
| Model | GFR400C10MLC2WTK AirTAC Filter Regulator NPT3/8 5um |
|---|---|
| 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 carton-forming and sealing line running actuators at reduced pressure, this low-pressure GFR filters the supply to 5 um and holds a gentle regulated setting, with the round psi gauge giving operators a direct readout at the machine.
At a lab bench or analytical-instrument air drop, the 5 um element strips water and fine particulate before sensitive pneumatic components, the manual drain lets staff purge condensate at the end of a shift, and the check valve guards against backflow into the drop.
Feeding gating and stopper cylinders along a conveyor run, this size 400 unit delivers filtered, regulated air at 3/8 in NPT, the included bracket mounts it to the frame, and the psi gauge lets maintenance verify set pressure without extra tooling.
Step up or down through the GFR sizes (200/300/400/600) to match the port and flow path your line needs - this unit sits at size 400 with 3/8 in NPT ports. Choose the drain to suit maintenance habits: manual (this unit) needs someone to open the drain, automatic empties itself, and the default differential-pressure drain dumps when the element loads up. Pick the element grade: 40 um standard for general protection, 5 um (W, this unit) where finer cleanliness matters. Gauges come as the embedded square type or an external round gauge, scaled in MPa, psi or bar; threads are PT as standard with G and NPT as order options; brackets are optional on most sizes.
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. Send us your application details and we will confirm the sizing against the datasheet curves before you commit.
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 performance curves rather than a single rated figure, so we do not quote a flow number here. Tell us your line pressure, downstream demand and acceptable pressure drop, and we will confirm the sizing from the datasheet curves on request before you order.
The W in the code is the filter grade: a 5 um element instead of the standard 40 um, for finer removal of water and particulate. The M is the manual drain: condensate collected in the bowl is emptied by opening the drain by hand, rather than automatically. The bowl on this size 400 unit is polycarbonate, and the unit is the low-pressure regulator type with a round psi gauge and a reverse/check valve fitted.
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.