The AirTAC GFR400C10MLJF1TK AirTAC Filter Regulator NPT3/8 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 GFR series combines filtration and pressure regulation in a single body: air first passes a filter element that strips out water and particulate, then a regulator that sets the downstream pressure. This unit is the 400 size with a 3/8 in NPT thread, fitted with a manual drain (you open the drain by hand to discharge collected water), a 40 um standard filter element, a metal bowl, an embedded square gauge reading in MPa, and a reverse/check valve. It is the low-pressure regulator type, takes a maximum inlet pressure of 1.0 MPa (145 psi), and operates from -5 to 70 C (non-freezing). No mounting bracket is included in this configuration.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options including automatic or differential-pressure drains, a 5 um element (code W), alternative gauge scales (psi or bar), an external round gauge, G (BSPP) or NPT threads, and a mounting bracket. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR400C10MLJF1TK AirTAC Filter Regulator NPT3/8 |
|---|---|
| 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) |
Feeds filtered, regulated low-pressure air to fixture clamps around a machining centre. The 40 um element keeps pipe scale and water out of the clamp valves, and the manual drain is emptied during scheduled changeover.
Sits in the drop line to spray guns where a lower regulated pressure is wanted. The filter section removes water and pipe scale that would spoil finishes, and the bowl is drained by hand at the start of each shift.
Regulates supply to the flap-fold and sealing cylinders of a case packer. This configuration includes a reverse/check valve, and the square MPa gauge gives operators a visible setpoint during size changeovers.
Choose the size step (200/300/400/600) and port to match the air demand of the circuit - the 400 size with a 3/8 in port sits mid-range in the family. Drain choice matters: this unit is manual drain, which suits duties where the bowl is emptied as part of a routine; automatic and differential-pressure drains are available in the family. The standard element is 40 um; specify 5 um (code W) where downstream equipment needs finer filtration. The embedded square gauge here reads in MPa; psi or bar scales and an external round gauge can be ordered. The thread on this unit is NPT; PT is the standard and G (BSPP) is also a catalogue option. A bracket can be added if panel or wall mounting is needed - this configuration omits it. Because flow is published as curves rather than a single rating, send us your application details and we will confirm sizing against the datasheet 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 curves, not as a single rated figure, so we do not quote a number here. Send us your application - port size, required downstream pressure and air demand - and we will confirm the flow figures from the datasheet before you order.
The M in the code means the bowl is drained by hand: you open the drain fitting to discharge collected water. The GFR family also offers automatic and differential-pressure drains - tell us which you prefer and we can quote the matching code. Note this unit is the low-pressure regulator type, and its exact adjustment range is not published; we will confirm it on request.
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.