The AirTAC GFR400C15LJF1WT 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 GFR400C15LJF1WT is an AirTAC GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This size 400 unit is threaded NPT1/2 (1/2 in), carries the optional 5 um filter element (code W), and uses the differential-pressure drain, the default drain option for the series. The regulator is the low-pressure type, and an embedded square gauge scaled in MPa is fitted; the bowl is metal and this configuration is supplied without a mounting bracket. Maximum 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. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and options for thread (PT standard; G and NPT to order), drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um optional) and gauge (embedded square or external round, with MPa, psi or bar scales). Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR400C15LJF1WT 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) |
Conditioning the air supply to a bench pneumatic press: the 5 um element keeps pipe scale and debris out of the valve stack while the low-pressure regulator holds the working pressure the tooling was set up for.
Feeding diverter and stopper cylinders on a carton packaging line, where a single filter regulator at the line drop cleans the air and sets line pressure before it branches to the actuators.
Supplying conditioned air to a laboratory automation skid with pick-and-place modules and small grippers, where the low-pressure regulator type and the fine 5 um element protect sensitive downstream components.
Choose the size by port and air demand: size 400 with a 1/2 in port sits in the middle of the GFR range (sizes 200/300/400/600, ports 1/8 in to 1 in). Match the port to your piping, and ask us to check the flow curve against your requirement before ordering, since AirTAC publishes flow as curves rather than a single rating. Note that this unit is the low-pressure regulator type; the exact adjustment range for the low-pressure type is not published, so confirm it with us if your circuit needs a specific setting window.
Other decodable choices: drain type (differential-pressure as here, or automatic code A / manual code M), filter grade (5 um as here, or the 40 um standard), gauge (embedded square, MPa as fitted; external round gauge optional with MPa/psi/bar scales), thread (PT is the standard; G and NPT are order options, NPT on this unit), and bracket (this configuration ships without one, code J).
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 there is no one number we can quote. Tell us your operating pressure and air demand and we will confirm the flow curve and datasheet figures for this model on request.
W is the filter grade code: this unit carries the optional 5 um element instead of the 40 um standard. The drain is the differential-pressure type, the default drain option for the series; automatic (code A) and manual (code M) drains are available on 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.