The AirTAC GFR400C10MJC2W AirTAC Filter Regulator 3/8" PT, 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 GFR400C10MJC2W is a size 400 filter regulator that removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a 3/8 in PT port, a 5 um filter element (the finer of the two catalogue grades), a manual drain on the bowl, and an external round gauge reading in psi. The standard regulator covers an adjustment range of 0.05-0.9 MPa (7-130 psi) with manual drain, and the unit accepts a maximum inlet pressure of 1.0 MPa (145 psi). Operating temperature is -5 to 70 C (non-freezing), and the PC bowl on this size is drained by hand, so it suits installations attended during routine checks.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and with choices of drain type, filter grade (40 um standard or 5 um with code W), gauge style and scale, thread (PT standard, G and NPT as order options), bracket and reverse/check valve. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR400C10MJC2W AirTAC Filter Regulator 3/8" PT, 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 clean, regulated air to the clamp and fixture actuators on a machining centre, where the 5 um element helps protect the clamping valves from fine particulate and the psi gauge lets setters verify clamp pressure at a glance.
Regulating the air supply to carton-forming and sealing cylinders on a packaging line, with the manual-drain bowl emptied during shift-start checks and the round psi gauge giving operators a visible setpoint.
Conditioning the air feed to a paint spray booth or air-assisted spray rig, where the 5 um grade and stable regulated pressure support consistent atomisation and the manual drain is serviced between coating runs.
Size 400 with a 3/8 in PT port sits in the middle of the GFR range; step up to size 600 or down to 300/200 depending on the flow your line needs - we will confirm the right step against the published flow curves on request. This unit has the 5 um element (code W) instead of the 40 um standard, which is the choice where downstream valves or instruments need finer filtration. Drain is manual, so an operator drains the bowl; choose automatic or differential-pressure drain codes if the installation is unattended. The fitted round gauge reads in psi (scales MPa, psi and bar are available), the thread is PT as standard with G and NPT as order options, and this configuration ships without a mounting bracket (code J) - add the bracket code if you need panel or wall fixing.
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 series as curves, not as a single rated number, so we do not quote a l/min or SCFM figure. Tell us your application and we will confirm the relevant flow and datasheet figures for you before you order.
The M in the code specifies a manual drain: an operator opens the bowl drain to remove collected water. With manual drain the regulator adjustment range is 0.05-0.9 MPa (7-130 psi). If the unit will run unattended, order an automatic (A) or differential-pressure (blank) drain code instead.
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.