The AirTAC GFR400C15MLJNWT AirTAC Filter Regulator NPT1/2 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 GFR400C15MLJNWT is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration has a 1/2 in NPT port, a 5 um filter element (the finer of the two catalogue grades), a manual drain for condensate, and the low-pressure regulator type. It is supplied without a pressure gauge and without a mounting bracket, and the metal bowl must be drained by hand. Maximum working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part from the GFR400 series. The GFR line is offered in sizes 200, 300, 400 and 600 with a choice of ports, PT, G or NPT threads, 40 um or 5 um filtration, differential-pressure, automatic or manual drains, standard or low-pressure regulation, gauge options and bracket options. Flow is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR400C15MLJNWT AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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 filtered, regulated air to the pneumatic clamps and fixtures on a machining centre, where the 5 um element protects the clamp valves and the low-pressure regulator holds a gentle, consistent clamp force.
Supplying clean, regulated air to lab analysers, sample-handling actuators and instrumentation panels that must not receive oil mist, making a filter regulator without a lubricator the right choice.
Conditioning the air feed to a spray booth or coating line, where water and 5 um-level particulate are stripped out and pressure is set for the spray equipment, with no lubricator adding oil to the finish.
Size 400 with a 1/2 in NPT port suits lines that need a larger port and higher flow than the 200 or 300 steps; step up to 600 or down to 300 according to the flow your circuit needs. This unit carries the 5 um element (code W) instead of the 40 um standard, so choose it where finer particulate removal matters. The manual drain means an operator opens the drain at the bowl; if nobody is at the machine, consider the automatic or differential-pressure drain variants in the same family. The low-pressure regulator type is intended for lower setpoints than the standard type; the exact range is not published, so confirm it with us. Gauges (round or square, MPa, psi or bar scale) and brackets are order options and are not fitted on this code. PT is the standard thread; G and NPT are catalogue options, and this code is the NPT version. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
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 this series as curves, not as a single rated figure, so we do not quote a flow number. Send us your application details and we will confirm the sizing from the datasheet curves before you order.
The L in the code selects the low-pressure regulator variant, intended for lower setpoints than the standard type; the exact range is not published, so confirm it with us. The M selects a manual drain, meaning condensate in the metal bowl is drained by hand rather than automatically; automatic and differential-pressure drain versions exist in the same family if you prefer.
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.