The AirTAC GFR400C10MLC2WT AirTAC Filter Regulator NPT 3/8 in 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 GFR400C10MLC2WT is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a 3/8 in NPT port, a 5 um filter element (the finer of the two catalogue grades), a manual drain on the bowl, and a low-pressure regulator type for circuits that run at reduced set pressures. A round psi-scale gauge is fitted for direct set-point reading, the metal bowl is fitted, and the mounting bracket is included. No reverse (check) valve is fitted.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and offers drain, filter-grade, gauge and thread options so one family can cover most point-of-use air-prep duties. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures on request before you order.
| Model | GFR400C10MLC2WT AirTAC Filter Regulator NPT 3/8 in |
|---|---|
| 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 CNC fixture line, this unit filters the shop air to 5 um and holds a reduced, low-pressure clamping force so workpieces are held firmly without crushing, with the psi gauge giving the setter a direct set-point readout.
Feeding cylinders and actuators on a cartoning line, the 5 um element keeps water and debris out of directional valves while the regulator holds a stable low set pressure for gentle product handling; the manual drain suits a machine tended each shift.
On an assembly cell, this unit supplies filtered, regulated air to gripper actuators, with the low-pressure type protecting delicate parts and the included bracket allowing tidy panel mounting next to the cell manifold.
Size 400 with a 3/8 in port sits in the upper-middle of the GFR range; step up to size 600 or down to 300 depending on the flow your line needs, and ask us to check the flow curve against your application. Drain choice matters: this unit has a manual drain, which suits attended installations where an operator drains the bowl on a schedule; automatic or differential-pressure drains suit unattended duty. The 5 um element (code W) is the finer grade versus the 40 um standard - choose 5 um where downstream valves and cylinders need cleaner air. Gauge scale is psi here; MPa and bar scales are available. Thread is NPT on this unit; PT (standard) and G are order options. Bracket is included.
Because catalogue flow is published only as curves, not a single rating, 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.
AirTAC publishes flow for the GFR series as curves, not as a single rated figure, so we do not quote a l/min or SCFM number. Send us your application details and we will confirm the flow curve and correct sizing from the datasheet on request.
This configuration uses a manual drain: an operator opens the drain to expel collected water. If the unit will sit unattended, the GFR family also offers automatic and differential-pressure drains on the same body - ask us to quote the variant that suits your installation.
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.