The AirTAC GFR400C15LJC2 AirTAC Filter Regulator 1/2 in PT 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 GFR400C15LJC2 is a size 400 filter regulator: water and particulate filtration plus pressure regulation combined in a single body, with a 1/2 in PT port. This configuration carries the standard 40 um filter element with a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element rises, a low-pressure regulator for circuits that run below standard regulating ranges, and a round pressure gauge reading in psi. No mounting bracket is included with this code, and no reverse/check valve is fitted.
This is a genuine AirTAC part from the G-series filter regulator line, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, an optional 5 um element (code W), square or 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 figures for your application.
| Model | GFR400C15LJC2 AirTAC Filter Regulator 1/2 in PT 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) |
Fixture clamps and swing cylinders on a CNC cell that run at reduced supply pressure get filtered, regulated air from one compact body, with the psi gauge letting the setter read clamping pressure directly at the machine.
Quarter-turn actuators and positioner supply lines on a process skid need clean, moisture-limited air held at a stable setting; the 40 um element protects the positioner and the low-pressure regulator suits control circuits that run well below main header pressure.
A 1/2 in drop feeding carton sealers, case packers or labelers takes its air supply from this filter regulator, with the differential-pressure drain keeping condensate out of the valves and the round gauge giving operators a visible line-pressure check.
Size 400 with a 1/2 in PT port sits in the upper half of the GFR range; step up to size 600 or down to 300/200 depending on the flow your line needs - we will confirm sizing against the published curves before you order. The differential-pressure drain on this unit suits steady-duty compressed-air supplies; choose automatic drain (code A) for unattended drains or manual (code M) where you want controlled purging. The 40 um element is the standard grade for general plant air; specify 5 um (code W) for finer protection downstream. The round gauge here reads in psi; square embedded gauges and MPa or bar scales are alternatives. Thread is PT as standard, with G (BSPP) and NPT available to order, and brackets can be added where this code omits one. This is the low-pressure regulator type, intended for circuits running below standard regulating ranges - confirm the exact range with us 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 filter-regulator performance as flow curves rather than a single rated-flow figure, so we do not quote one number. Tell us your inlet pressure, set pressure and expected air demand and we will confirm the sizing from the datasheet curves before you order.
The L code selects the low-pressure regulator type, intended for circuits that run below standard regulating ranges; the exact range for this type is not published in the standard table, so confirm it with us. The blank drain code is the differential-pressure type, which discharges collected condensate automatically when the pressure drop across the 40 um element reaches its threshold - no manual blowing down required.
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.