The AirTAC GFR400C10MF2WGK AirTAC Filter Regulator G3/8, 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 GFR400C10MF2WGK is an AirTAC GFR400 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration is built around a G3/8 (BSPP) port, a fine 5 um filter element (the W grade option; 40 um is the standard element), and a manual drain you open by hand to purge collected condensate from the bowl. Regulation is the standard type with an adjustment range of 0.05-0.9 MPa (7-130 psi) for this manual-drain version, against a maximum inlet pressure of 1.0 MPa (145 psi). An embedded square gauge on a psi scale is fitted so you can set and read downstream pressure directly, a reverse/check valve is fitted to hold downstream pressure, and a mounting bracket is included. Operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part from the G-series air-treatment line. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um standard or 5 um fine filtration, gauge scales in MPa, psi or bar, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR400C10MF2WGK AirTAC Filter Regulator G3/8, 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) |
On a CNC machining center, pneumatic fixture clamps need clean, dry air at a repeatable set pressure so workholding force does not drift between cycles. This unit filters carryover down to 5 um ahead of the clamping circuit, the psi-scale gauge lets the setter dial in the clamp pressure, and the check valve helps hold the setting against upstream dips.
At a spray booth or finishing line, water and pipe scale in the shop air ruin finishes and clog gun passages. This filter regulator strips moisture and 5 um particulate before the guns, while the regulator sets the stable atomizing pressure the painter actually needs. The manual drain suits a booth on a shift pattern where an operator bleeds the bowl at start-up.
On a packaging line, the cylinders and air cylinders of a carton-sealing machine run thousands of strokes a shift and are the first to suffer from wet, dirty air. Feeding the machine through this G3/8 filter regulator keeps grit and condensate out of the valve spools, and the regulated pressure keeps box-flap actuation consistent as the compressor cycles.
Size this unit by the port step and the flow your line needs: the 400 size carries a 3/8 in port, and larger sizes move more air - match the step to your consumption rather than oversizing blindly. Because this version has a manual drain, plan a walk-round routine to bleed the bowl; if nobody will be there to do that, the automatic or differential-pressure drain options are the better decode. The 5 um element here is the fine grade - choose it where downstream valves, cylinders or tools are sensitive to carryover; the 40 um standard element suits general supply. The fitted square gauge reads in psi; MPa and bar scales are available, and an external round gauge is optional. Thread is G (BSPP) on this code, with PT and NPT available to order, and the mounting bracket is included.
One honest note on sizing: AirTAC publishes flow for this series 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 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 series as performance curves, not as a single rated figure, so we do not quote a l/min or SCFM number here. Tell us your operating pressure and air consumption and we will confirm the sizing against the datasheet curves on request before you order.
The M in the code selects a manual drain: condensate collects in the bowl until someone opens the drain by hand, which suits attended lines on a regular maintenance round; automatic and differential-pressure drains are available if the unit will be left unattended. The W code selects the 5 um fine element instead of the 40 um standard element, for applications where downstream valves and tools need cleaner air.
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.