The AirTAC GFR400C10MJF2WT AirTAC Filter Regulator NPT 3/8 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 GFR400C10MJF2WT is an AirTAC GFR400 filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure steady. This 400-size unit is tapped 3/8 in NPT, carries a 5 um filter element, a metal bowl with manual drain, and a built-in square gauge reading in psi. The regulating spring covers 0.05-0.9 MPa (7-130 psi), the standard-type regulator is rated to 1.0 MPa (145 psi) inlet, and the working temperature range is -5 to 70 C (non-freezing). No mounting bracket is fitted.
This is a genuine AirTAC part. The G-series filter regulators span sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options for G(BSPP) or NPT threads, 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 | GFR400C10MJF2WT AirTAC Filter Regulator NPT 3/8 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) |
Feeding filtered, regulated air to pneumatic workholding clamps and tool-change actuators on a machining centre: the 5 um element keeps grit out of spool valves, and the psi gauge gives operators a visible setpoint at the drop.
Regulating supply to carton-forming and case-sealing cylinders along a packaging conveyor, with the manual drain emptied as part of the shift check so condensate never reaches the valve bank.
Delivering clean, steady regulated air to spray guns in a paint finishing booth: the 5 um element helps protect finish quality, and the manual drain is purged between batches.
Size the unit by port and expected flow: this 400-size body is tapped 3/8 in NPT, and larger sizes in the series move more air. Choose the drain to match service: this configuration has a manual drain, which also carries the wider 0.05-0.9 MPa (7-130 psi) regulation range, while automatic and differential-pressure drains suit unattended duty. The 5 um element (code W) is the finer choice over the standard 40 um where downstream equipment needs cleaner air. The square gauge here reads psi; MPa and bar scales, and an external round gauge, are order options. PT is the standard thread and G(BSPP) and NPT are catalogue options - this unit is ordered with NPT. Flow is published as curves, not a single rating, so 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 this series as curves rather than a single rated figure, so there is no one number we can quote. Send us your line pressure, downstream demand and port size, and we will confirm the datasheet curve figures for the GFR400 at 3/8 in NPT before you order.
This unit drains its metal bowl by hand, so it suits attended installations with a regular check routine. The manual-drain version also carries the wider 0.05-0.9 MPa (7-130 psi) regulation range. If the unit will run unattended, ask us about the automatic or differential-pressure drain options in the same 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.