The AirTAC GFR400C15MLC3T AirTAC Filter Regulator NPT1/2 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 GFR400C15MLC3T is a filter regulator: water-and-particulate filtration and pressure regulation combined in one body, so a single unit cleans the compressed air and holds a steady downstream pressure. This size 400 configuration has 1/2 in NPT ports, a polycarbonate (PC) bowl with manual drain, a 40 um standard filter element and the low-pressure regulator type, and it comes with an external round gauge scaled in bar plus 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. The GFR family is offered in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and with choices of drain (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um with code W), gauge style and scale (embedded square or external round; MPa, psi or bar), and PT, G or NPT thread. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and the full datasheet for your application.
| Model | GFR400C15MLC3T AirTAC Filter Regulator NPT1/2 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) |
Point-of-use clean-up and pressure control for the air that actuates clamps and vises on a machining centre, with water and particles removed before the air reaches the cylinders.
Filtering and regulating the supply to stopper and pusher cylinders on a carton or bottle conveyor, where a stable low set pressure keeps product handling gentle.
A filtered, regulated drop at assembly benches feeding hand tools and small actuators, with the manual drain emptied as part of the end-of-shift routine.
Choose the size and port by the flow your line needs: this unit is size 400 with 1/2 in NPT ports, while the smaller 200/300 and larger 600 bodies step port size and flow capacity up or down. Drain type is a real choice: this code has a manual drain (the bowl is emptied by hand), and differential-pressure (the default) and automatic drains are the options for unattended installations. Filter grade is the 40 um standard element here; specify code W for the 5 um element where finer filtration is needed. The gauge on this unit is the external round type scaled in bar; the embedded square gauge and MPa or psi scales are the alternatives. Thread is NPT on this code; PT is the standard thread and G (BSPP) is also an order option. This is the low-pressure regulator type, and its exact setting range is not published in the catalogue, so we confirm it on request. Because flow is published as curves rather than a single rating, send us your flow and pressure requirements 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 GFR400 as curves rather than a single rated figure, so there is no one l/min or SCFM number we can quote. Send us your inlet pressure, set pressure and required flow, and we will confirm sizing from the datasheet on request.
The M in the code selects a manual drain: the bowl is emptied by hand, which suits attended installations, while differential-pressure and automatic drains are order options for unattended ones. This unit is the low-pressure regulator type, and its exact setting range is not published in the catalogue, so we 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.