The AirTAC GFR400C15LJC2GK 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 GFR400C15LJC2GK is a GFR400-series 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 40 um standard filter element, a polycarbonate bowl with differential-pressure drain, the low-pressure regulator type, a round gauge with psi scale, and a built-in reverse (check) valve. It is supplied without a mounting bracket. 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. The GFR series is published in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and options that include manual or automatic drains, a 5 um (code W) filter element, G or NPT threads, gauge scale choices in MPa, psi or bar, and an optional bracket. Flow is published as curves rather than a single rating, so we confirm the datasheet and flow figures for your application on request.
| Model | GFR400C15LJC2GK 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) |
On a production cell where clamping fixtures run at reduced line pressure, this unit filters the shop air and holds a steady regulated supply to the clamp circuit, with the check valve helping hold the downstream side.
Packaging and sorting lines use diverter gates, stoppers and pushers fed from a filtered, regulated take-off; this 1/2 inch filter regulator conditions that branch without adding a separate filter and regulator in line.
Bench-top and laboratory automation with small pneumatic actuators often needs clean air at modest pressures; the low-pressure regulator type and 40 um filtration suit a conditioned feed to such devices.
Size and port step up together: 200, 300, 400 and 600 cover 1/8 through 1 inch, so pick the size whose flow curve covers your demand at your working pressure - this GFR400 sits at the 1/2 inch step. The decodable choices on this unit are the drain (differential-pressure here; automatic code A or manual code M available), the filter element (40 um standard, 5 um with code W), the gauge (round psi scale fitted here; embedded square gauge and MPa/bar scales are the other routes), the thread (PT is the standard; G and NPT are order options), and the bracket (code J omits it).
One honest routing note: AirTAC publishes flow as curves, not a single rated figure, and the exact adjustment range of the low-pressure (L) type is not stated in the material we hold. Ask us to confirm sizing and the regulator range against your application before ordering.
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 this series as curves rather than a single rated figure, so we do not quote a number. Tell us your inlet pressure, set pressure and air demand, and we will confirm the flow from the datasheet for this exact model on request.
This unit has a differential-pressure drain (the default), which bleeds condensate from the bowl; automatic (A) and manual (M) drains are available as alternative codes. The trailing K means a reverse (check) valve is fitted. Details of either option are available on request.
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.