The AirTAC GFR400C10MF2WTK 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 AirTAC GFR400C10MF2WTK is a size-400 filter regulator: it removes water and particulate from compressed air and holds a regulated downstream pressure in one 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 for the bowl, an embedded square gauge reading in psi, and a built-in reverse/check valve so downstream pressure is held if the supply drops. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator covers 0.05-0.9 MPa (7-130 psi) of adjustment, and the operating temperature range 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 a choice of ports, drain types, filter grades, gauge scales and thread options, so a variant can be matched to most drop or machine supply points. Flow is published as curves rather than a single rating; ask us and we will confirm the datasheet figures for your application.
| Model | GFR400C10MF2WTK 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) |
Filtered, regulated air feeding solenoid valves and actuators on a packaging or process line, where the 5 um element protects valve seats and the check valve holds the set pressure during brief supply dips.
A regulated supply point at a machining cell or CNC enclosure, giving clean air to clamps, chucks and purge lines with the psi gauge giving the operator a direct reading at the machine.
Feeding air cylinders and diverters on a conveyor or sorting line, with the regulator set to the cylinder rating and the manual drain emptied during scheduled line checks.
Size 400 with a 3/8 in port sits in the upper-middle of the GFR range; step up or down (200/300/400/600) according to the air demand at the point of use, and confirm the match against the published flow curves before ordering. This unit has a manual drain, so someone must open the bowl drain periodically; if the installation is unattended, ask about the automatic or differential-pressure drain variants. The 5 um element (code W) suits points where finer particulate removal matters; the 40 um standard grade remains available. The square gauge here reads psi; MPa and bar scales exist, and an external round gauge is an option. NPT is specified on this code; G (BSPP) and PT are the other catalogue thread options. A mounting bracket is included, and the K code means a reverse/check valve is fitted. Because flow is published as curves and not a single rated figure, send us your application details and we will confirm sizing 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 GFR family as curves, not as a single rated number, so we do not quote a figure here. Tell us your application and we will confirm the datasheet flow curve and help you check the size 400 / 3/8 in unit against your demand before you order.
The M in the code specifies a manual drain: condensate collected in the bowl is released by operating the drain by hand, which suits attended installations on a maintenance schedule. If the unit will sit unattended, ask us about the GFR variants with automatic or differential-pressure drains.
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.