The AirTAC GFR400C15LJC2WG AirTAC Low-Pressure Filter Regulator G1/2 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 GFR400C15LJC2WG is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the size 400 unit with a G1/2 (BSPP) port, a 5 um filter element (code W), a differential-pressure drain on the metal bowl, and the low-pressure regulator type. A round external gauge with a psi scale is fitted, no mounting bracket is included, and no reverse (check) valve is fitted. 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 from the GFR400 series, one of four sizes (200, 300, 400, 600) in the GFR filter-regulator family. AirTAC publishes flow for these units as curves rather than a single rating, so ask us to confirm sizing and any datasheet figure against your application before ordering. Thread variants (PT standard, with G and NPT as order options), drain types, filter grades and gauge scales can be selected across the range.
| Model | GFR400C15LJC2WG AirTAC Low-Pressure Filter Regulator G1/2 |
|---|---|
| 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) |
Supplies filtered, regulated air to clamping cylinders and pallet fixtures on a machining centre, where the low-pressure regulator holds a gentle clamp setting and the 5 um element protects the directional valves.
Conditions the air feeding spray guns and atomising headers in a coating booth, taking out water and fine particles and letting the operator set a low, stable gun pressure at the point of use.
Feeds the diverter and pusher cylinders on a carton-sorting conveyor, with pressure set at the line and condensate collected in the bowl before it can reach the actuators.
Choose the size and port against the flow your line needs: this is the size 400 body with a 1/2 in port, a larger step in the GFR range for higher-demand circuits. The regulator in this code is the low-pressure type - select it when the downstream setting sits below the standard type's range; the exact adjustment range for this variant is not published in the catalogue, so confirm your set pressure with us. Filtration here is 5 um; the standard element is 40 um if finer filtration is not required. The bowl uses the differential-pressure drain (the default), with automatic and manual drains available as alternatives. The fitted gauge is the external round type reading in psi; the embedded square gauge with MPa, psi or bar scales is the standard alternative. PT is the standard thread across the range, with G and NPT as order options - this unit is specified with G thread, and no bracket is included with this code.
Because flow is published as curves rather than a single rating, send us your flow and pressure requirements and we will confirm this unit's suitability against the 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 GFR400 as curves rather than a single rated figure, so there is no one number we can quote. Send us your required flow and working pressure and we will confirm this unit's suitability against the datasheet on request.
The L code selects the low-pressure regulator variant, intended for settings below the standard type's range. The catalogue does not publish an exact adjustment range for this variant, so confirm your set pressure with us before ordering. Maximum inlet pressure is still 1.0 MPa (145 psi).
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.