The AirTAC GFR400C15LJC2K AirTAC Filter Regulator 1/2 in PT 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 GFR400C15LJC2K is a filter regulator: it removes water and particulate from compressed air and holds a regulated downstream pressure in one body. This size 400 unit is threaded PT1/2 (1/2 in), built as the low-pressure regulator type, filters to the standard 40 um grade, drains condensate by differential pressure, and comes fitted with an external round gauge scaled in psi plus an integrated reverse (check) valve. No mounting bracket is included on this code.
It is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in and options for drain type, filter grade, gauge, thread and bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing), with a polycarbonate bowl at this size. Flow is published as curves rather than a single rating, so we confirm flow and full datasheet figures on request.
| Model | GFR400C15LJC2K AirTAC Filter Regulator 1/2 in PT |
|---|---|
| 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) |
Feeds cleaned, low-pressure regulated air to spray booths and atomising stations on a finishing line, where the 40 um element strips water and pipe scale before air reaches the coating equipment.
Supplies filtered, regulated air to clamp and hold fixtures on a machining cell, with the check valve holding the set downstream pressure against backflow from the circuit.
Prepares air for diverters, pushers and stopper cylinders along a packaging conveyor, keeping moisture and debris out of the valves while holding a stable low set pressure.
Size 400 with a 1/2 in PT port sits in the middle of the GFR flow range; step down to 300/200 or up to 600 as your air demand requires, and we will check the published flow curves against your application before you order. Code L makes this the low-pressure regulator type, chosen where the controlled pressure sits below the standard type's range; its exact setting span is not published, so confirm it with us. Drain is differential-pressure as coded, with automatic (A) and manual (M) drains available to order. Filtration is the standard 40 um element; specify code W for the 5 um grade. The fitted round gauge reads in psi, with MPa or bar scales as alternatives, and the check valve blocks downstream backflow. Thread can be ordered as G (BSPP) or NPT instead of the PT standard, and a bracket can be added if this code's no-bracket build does not suit your panel.
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, not a single rated figure, so we do not quote a number here. Send us your line pressure, set pressure and air demand, and we will confirm the sizing from the datasheet before you order.
Code L makes this the low-pressure regulator version, intended for controlled pressures below the standard type's range; the exact setting span is not published, so confirm it with us. This code carries the external round gauge with a psi scale, while the embedded square gauge with MPa, psi or bar scales is the alternative build.
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.