The AirTAC GFR400C15LJF1WTK 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 GFR400C15LJF1WTK is an AirTAC GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in a single body, with a drain bowl but no lubricator. This size 400 unit is threaded NPT1/2 (1/2 in), carries the W code for a 5 um filter element (40 um is the standard grade), drains by differential pressure, and is the low-pressure regulator type. It comes with an embedded square gauge scaled in MPa, a reverse (check) valve fitted, a metal bowl, and no mounting bracket.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and can be ordered with manual or automatic drains, a 40 um or 5 um element, an external round gauge in addition to the embedded square gauge (scales in MPa, psi or bar), G (BSPP) or NPT threads in place of the PT standard, and a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow for this family is published as curves rather than a single rated figure, so ask us to confirm sizing figures from the datasheet for your application.
| Model | GFR400C15LJF1WTK 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) |
Filtered, regulated air feeding the clamp cylinders on a CNC fixture, where the 5 um element helps protect the clamping valves and the fitted check valve blocks backflow toward the supply side.
Supplying the divert and stop cylinders on a carton conveyor, with pressure set locally at the machine and the differential-pressure drain handling condensate as the line cycles through shifts.
Regulated air to the pneumatic actuators on a sampling or dosing skid, where the low-pressure regulator type matches circuits that operate below standard set pressures.
Match the size and port to the air demand of the circuit: this is size 400 with a 1/2 in NPT port, one step below the largest size 600. Element grade is the other key choice - the 5 um element fitted here (code W) suits downstream equipment that tolerates less particulate, while 40 um is the standard grade. Drain options are differential-pressure (fitted here, which clears the bowl as pressure falls), automatic, or manual; gauge choices are the embedded square gauge (MPa scale here) or an external round gauge scaled in MPa, psi or bar. This unit is the low-pressure regulator type; its exact adjustment range is not published, so confirm your set pressure with us. Flow is published as curves, not a single rated figure, so send us your flow and set-pressure requirements and we will confirm suitability from the AirTAC 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 required flow, port size and set pressure, and we will confirm sizing against the datasheet on request.
The code specifies the low-pressure regulator variant, intended for circuits whose set pressure sits below the standard type's range. The exact adjustment range for this variant is not published in the material we hold, so tell us your set pressure and we will confirm it from the AirTAC datasheet before you order.
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.