The AirTAC GFR400C10MF2W AirTAC Filter Regulator PT3/8 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 AirTAC GFR400C10MF2W is a filter regulator: in one body it removes water and particulate from compressed air and holds downstream pressure at your setpoint. This size 400 unit is configured with a 3/8 in PT port, a 5 um filter element (the finer of the two published grades), a manual-drain polycarbonate (PC) bowl, an embedded square gauge scaled in psi, and the standard regulator covering 0.05-0.9 MPa (7-130 psi) of adjustment. Maximum inlet pressure is 1.0 MPa (145 psi), operating temperature is -5 to 70 C (non-freezing), and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600, with port sizes from 1/8 to 1 in, G (BSPP) and NPT thread options to order, automatic or differential-pressure drain choices, 40 um or 5 um filtration, and gauge scales in MPa, psi or bar. Flow for this series is published as curves rather than a single rating, so ask us to confirm the datasheet and sizing figures for your application before you order.
| Model | GFR400C10MF2W AirTAC Filter Regulator PT3/8 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) |
Machine tools, pneumatic chucks and clamping fixtures on a CNC cell need air that is both clean and held at a steady setpoint. This unit filters water and particulate down to 5 um and regulates the supply in one body at the cell drop, protecting spindles' air-assist circuits and fixture cylinders from moisture carryover and pressure drift.
Carton sealers, case packers and labeling heads run cylinders and air jets continuously, and a stuck valve from water or debris stops the whole line. Mounted at the line drop, this filter regulator delivers 5 um-filtered air at a fixed pressure so sealing heads and diverters repeat their stroke consistently through the shift.
Spray guns and atomizing applicators are sensitive to both contamination and pressure variation: water spots ruin finishes and drifting pressure changes the pattern. This unit conditions the booth's air feed with 5 um filtration and holds the atomizing pressure steady via the square psi gauge and manual setpoint adjustment.
Size the unit by port and expected demand: within the GFR family, sizes 200, 300, 400 and 600 step up in port from 1/8 to 1 in, and this size 400 unit sits at 3/8 in PT. Because AirTAC publishes flow as curves rather than one rated figure, send us your flow and pressure requirements and we will confirm the datasheet figures before you order. The remaining choices are decodable from the code: manual drain here (automatic and differential-pressure drains are available in the family), 5 um filtration instead of the standard 40 um, a square gauge scaled in psi (MPa and bar scales exist), PT thread as standard with G (BSPP) and NPT as order options, and the mounting bracket that is included with this configuration.
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 rather than a single rated figure, so there is no one l/min or SCFM number we can honestly quote. Tell us your inlet pressure and the demand of your equipment, and we will confirm the datasheet flow figures for this exact model before you order.
A manual drain means collected water is expelled by opening the drain by hand, which suits installations checked as part of a routine. It also widens the regulator adjustment range to 0.05-0.9 MPa (7-130 psi), versus 0.15-0.9 MPa (20-130 psi) for the automatic and differential-pressure drain variants of this family. If nobody will open the drain regularly, ask us about the automatic-drain version.
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.