The AirTAC GFR400C15MLJF3TK AirTAC Filter Regulator NPT 1/2 in 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 GFR400C15MLJF3TK is an AirTAC GFR400 filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration is a 400-size unit with a 1/2 in NPT port, the low-pressure regulator type, a metal bowl with a manual drain, a 40 um filter element, an embedded square gauge reading in bar, and a reverse (check) valve fitted. No mounting bracket is included with this code. 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 made in 200, 300, 400 and 600 sizes with ports from 1/8 to 1 in, and the catalogue options include automatic, manual or differential-pressure drains, a 5 um element (code W), square-gauge scales in MPa, psi or bar, an external round gauge, G (BSPP) or NPT threads in place of the PT standard, and a mounting bracket. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR400C15MLJF3TK AirTAC Filter Regulator NPT 1/2 in |
|---|---|
| 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) |
Filtering and regulating the supply air to the low-pressure cylinder circuits of a form-fill-seal or cartoning machine, with the manual drain emptied during changeover.
Conditioning air for stopper, gate and diverter cylinders along a bottling or parcel conveyor line, where one unit both filters the supply and holds the circuit pressure.
Supplying filtered, regulated pilot air to automated process valves on a water-treatment or dosing skid running at modest set pressures, with the check valve holding the pilot line.
Within GFR400 the real choices are: size and port (200/300/400/600 with ports from 1/8 to 1 in) stepped against the flow your circuit needs; drain type (differential-pressure by default, automatic with A, manual with M - this code is manual, emptied by hand); filter grade (40 um standard, 5 um with W); gauge (embedded square gauge with MPa, psi or bar scales, external round gauge optional - this code reads in bar); and thread (PT is the AirTAC standard, with G and NPT as order options - this code is NPT). A mounting bracket is included by default and omitted with J, as here. The adjustment range of the low-pressure regulator type is not published in the data we hold, so confirm it with us if your set pressure is critical. Flow is published as curves, not a single rating, so ask us to check the curve against your consumption and working pressure 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 G-series flow as curves rather than a single rated figure, so we do not quote a number here. Send us your air consumption and working pressure and we will confirm the flow from the datasheet before you order.
The M in this code means the metal bowl is drained by hand rather than automatically. Manual drain suits installations that are attended regularly, such as machines emptied at shift start or changeover. If the unit cannot be reached daily, choose A (automatic) or the differential-pressure default instead. The 40 um element fitted here is the standard grade; 5 um is available as code W.
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.