The AirTAC GFR400C15MLJNWTK 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 GFR400C15MLJNWTK is an AirTAC GFR filter regulator: a 5 um filter element and a pressure regulator combined in one body, so compressed air is cleaned of water and particulate and then held at a set working pressure on its way to the machine. This size 400 unit is built with a 1/2 in NPT port, a polycarbonate bowl with manual drain, the 5 um (W) filter element, and the low-pressure regulator type. A reverse/check valve is fitted, no gauge is supplied, and no mounting bracket is included.
It is a genuine AirTAC part from the GFR range, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in and thread options in PT, G (BSPP) and NPT; drain, filter grade, gauge and bracket choices vary by code. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Because flow is published as curves rather than a single rating, ask us and we will confirm the datasheet and sizing figures for your application.
| Model | GFR400C15MLJNWTK 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) |
Fixture clamps and swing cylinders on a machining cell that need clean, moisture-reduced air held at a low, stable regulated pressure; the 5 um element protects clamp seals and the check valve helps hold the setting if the upstream supply dips.
Bag-sealing and carton-closing heads on a packaging line where film seal cylinders run at low regulated pressure; filtered, regulated air keeps sealing consistent, and the manual drain lets an operator purge collected water at shift start.
Diverter and pusher gates on a distribution conveyor that cycle on low-pressure air; the regulator sets gate operating pressure independently of the main header, and the 1/2 in port suits larger gate cylinders.
The real choices within GFR are the size and port step (200 through 600, 1/8 to 1 in), set against the air demand of the circuit; the drain type (differential-pressure as standard, automatic, or manual as on this unit); the filter grade (40 um standard, 5 um with code W, as fitted here); the gauge and its scale (MPa, psi or bar - this code carries none); the thread (PT standard, G or NPT to order); and whether a bracket is included. This unit is also the low-pressure regulator type and carries a reverse/check valve; its exact regulation range is not published for the low-pressure type, so confirm it with us before ordering. Flow is published as curves, not a single rated figure, so ask us to check the curve data against your application 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 GFR flow as curves rather than a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow curve and sizing from the datasheet on request.
This code (N) is supplied without a gauge; gauge and scale options (MPa, psi or bar) are available on other variants in the range. Manual drain means water collected in the polycarbonate bowl must be drained by hand; automatic and differential-pressure drain versions are also available.
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.