The AirTAC GFR400C10MLJC2T AirTAC Filter Regulator NPT3/8 Low-Pressure 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 GFR400C10MLJC2T is a filter regulator: a water-and-particulate filter and a pressure regulator combined in one body, so a single unit both cleans the compressed air and holds the downstream pressure you set. This size 400 configuration has a 3/8 in NPT port, a manual-drain polycarbonate bowl, the standard 40 um filter element and the low-pressure regulator type. A round pressure gauge reading in psi is fitted, the unit is supplied without a mounting bracket, maximum inlet pressure is 1.0 MPa (145 psi), and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in. Across the series you can order automatic or manual drains in place of the differential-pressure default, a 5 um element (code W), gauge scales in MPa, psi or bar, and G (BSPP) or NPT threads in place of the PT standard. Rated flow is published as curves rather than a single figure, so ask us to confirm the datasheet for your application.
| Model | GFR400C10MLJC2T AirTAC Filter Regulator NPT3/8 Low-Pressure |
|---|---|
| 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 a press or clamping cylinder with air that is both filtered and held at a set pressure, so the station runs consistently through a shift.
Supplying conveyor diverters, stoppers and gating cylinders on a packaging line, where one unit handles air cleaning and pressure setting in a single drop.
The low-pressure regulator type suits paint and coating lines running guns and air motors below main-line pressure, with the 40 um element keeping moisture and debris out of the finish.
Size and port are the first choice: 200, 300, 400 and 600 step up in port and flow capacity, so match the 3/8 in NPT port here to your line size and air demand. Drain type matters in service: the manual drain on this unit needs someone to open it, while automatic and differential-pressure drains suit unattended installations. Filter grade is 40 um as standard; order the W variant for 5 um where finer protection is needed. Gauge scale (MPa, psi or bar), thread (PT standard, G or NPT to order) and bracket are the remaining decodable options. Flow is published as curves, not a single rating, so send us your air demand 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 rather than a single rated figure, so we do not quote a number here. Send us your line size and air demand and we will confirm the flow from the datasheet on request.
The M in this code selects a manual drain: someone opens the bowl drain to release collected water. It suits attended installations or lines drained as part of a routine; for unattended duty, order the automatic (A) variant or the differential-pressure default 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.