The AirTAC GFR400C10MC2WT AirTAC Filter Regulator 3/8 in NPT 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 GFR400C10MC2WT is a size 400 filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure at your setpoint. This configuration has a 3/8 in NPT port, a 5 um filter element (the finer of the two published grades), a manual drain on the polycarbonate bowl, a round external pressure gauge reading in psi, a standard regulator, and a mounting bracket included. Maximum inlet pressure is 1.0 MPa (145 psi), the regulating range is 0.05-0.9 MPa (7-130 psi), and the operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, PT as the standard thread and G or NPT to order, with manual, automatic or differential-pressure drains, 40 um or 5 um elements, and MPa, psi or bar gauge scales. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR400C10MC2WT AirTAC Filter Regulator 3/8 in NPT |
|---|---|
| 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) |
Mounted at the air drop feeding a CNC machining center, the unit strips water and swarf-carrying moisture from the shop air and holds a steady setpoint for tool-change cylinders and clamping actuators, with the psi gauge letting setters verify line pressure at a glance.
On a carton-sealing or case-palletizing conveyor line, the filter regulator feeds the diverters, pushers and grip cylinders with clean air at a fixed pressure so stroke timing stays repeatable through the shift, and the manual drain is emptied during scheduled changeovers.
In a robotic welding cell, the unit conditions the supply to the weld-gun clamp fixtures and positioner locks, keeping moisture and 40 um-and-coarser particles out of the fixture valves while the regulator holds the clamp pressure the weld schedule calls for.
Size 400 with a 3/8 in NPT port is the right choice when your supply line and downstream demand sit in that port class; step up or down a size if your requirement changes, and confirm the match against the published flow curves before ordering. The manual drain means an operator opens the bowl drain periodically to purge collected water - choose the automatic (A) or differential-pressure (blank) drain codes if the unit will run unattended. The 5 um element (code W) is the finer option versus the 40 um standard; pick it where downstream valves and instruments need cleaner air. The round gauge reads psi, while the embedded square gauge and MPa or bar scales are the alternatives. NPT is an order option alongside the PT standard, and the mounting bracket is included with this unit.
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 one number. Tell us your line's flow and working pressure and we will confirm the correct sizing against the datasheet on request before you order.
This configuration carries code M, a manual drain: an operator opens the bowl drain periodically to expel collected water. If the regulator will sit where nobody passes regularly, the same GFR400 size is available with an automatic drain (code A) or a differential-pressure drain (blank) - ask us for those codes.
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.