The AirTAC GFR400C15LJC2G AirTAC Filter Regulator G1/2 Low-Pressure 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 GFR400C15LJC2G is a GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This unit is built in size 400 with G1/2 (BSPP) ports, carries the 40 um standard filter element in a polycarbonate bowl, and uses a differential-pressure drain that bleeds accumulated condensate automatically as air flows through. It is the low-pressure regulator type and comes fitted with an external round gauge reading in psi; no mounting bracket is included and no reverse/check valve is fitted.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and options include manual or automatic drains, a 5 um element (code W), embedded square or external round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR400C15LJC2G AirTAC Filter Regulator G1/2 Low-Pressure |
|---|---|
| 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) |
Air preparation for clamps on a CNC machining cell: this filter regulator delivers cleaned, moisture-reduced air at a regulated low pressure so workpieces are held securely without being crushed, with the psi gauge giving the operator a local setting reference.
On a process skid with air-operated valves and small actuators, this unit filters the supply and holds a stable reduced pressure; the low-pressure regulator type and round psi gauge suit loops where fine control at modest set points matters.
Feeding filtered, regulated air to carton-forming and sealing cylinders on a packaging line: the 40 um element protects directional valves and cylinders from particulate, while the differential-pressure drain clears condensate automatically during production runs.
Size 400 with G1/2 ports sits in the upper half of the GFR range; step down to 300/200 or up to 600 depending on the air demand of your line - we can check the flow curves against your requirement before you order. This unit keeps the 40 um standard element (choose code W for the 5 um grade where finer filtration is needed), uses the differential-pressure drain, and is the low-pressure regulator type; its exact adjustment range is not published, so confirm it with us if your set pressure is critical. The fitted round gauge reads psi; embedded square gauges and MPa or bar scales are available on other variants. The thread here is G (BSPP); PT is the standard thread and NPT is an order option. No mounting bracket is included with this code.
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.
Flow for the GFR400 is published as curves in the AirTAC datasheet, not as a single rated figure, so we do not quote a number on the page. Send us your application's flow and pressure requirements and we will confirm the datasheet figures and check whether size 400 with G1/2 ports is the right selection before you order.
This unit is the L (low-pressure) variant of the GFR400. Its exact adjustment range is not published in the material we work from, so if you have a specific set pressure in mind, tell us the value and we will confirm suitability from the datasheet before ordering. Maximum inlet pressure is 1.0 MPa (145 psi), the working temperature range is -5 to 70 C, and the fitted round gauge reads in 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.