The AirTAC GFR400C15LJF2WGK 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 GFR400C15LJF2WGK is an AirTAC GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration is the size 400 unit with a G1/2 (BSPP) port, a 5 um filter element (the W grade, finer than the 40 um standard), a differential-pressure drain, and the L low-pressure regulator variant. It is supplied with a metal bowl, an embedded square gauge reading in psi, and a built-in check valve (K), with no mounting bracket (J). 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 GFR400 sits in the GFR size range (200, 300, 400, 600), so the same filter-plus-regulator function is available in smaller or larger ports if your requirement changes. Related options across the series include the 40 um standard element, automatic or manual drains, alternative gauge scales (MPa or bar), an external round gauge, and PT or NPT threads ordered as variants. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR400C15LJF2WGK 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) |
Point-of-use conditioning for carton-sealing and case-erector cylinders on a packaging line: the 5 um element protects the directional valves, and the low-pressure regulator variant suits actuators that run below standard line pressure.
Filtering and stepping air down to the low pressures a spray gun or air-assisted applicator needs, with the psi-scale square gauge set at the booth and the built-in check valve blocking reverse flow in the drop.
Conditioning the air feed to gate and stopper cylinders along a conveyor line, where one body does the filtering and the low-pressure regulation instead of a separate filter and regulator plumbed in series.
Every choice in this unit is decodable from the code. Size (200/300/400/600) sets the port and the flow capacity - pick the size whose flow curve covers your demand with margin; we can check the curve against your application. Drain: differential-pressure (this unit), automatic, or manual. Filter grade: 40 um standard or 5 um (W, this unit) for finer protection of downstream valves. Gauge: embedded square gauge with MPa, psi (this unit) or bar scale, or an external round gauge. Thread: PT is the standard; G (this unit) and NPT are ordered as variants. Bracket: included by default, omitted with the J code (this unit). Flow is published as curves, not a single rating, so ask us to confirm sizing 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 GFR400 flow as curves rather than a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow curve and the datasheet figures on request before you order.
The L code marks the low-pressure regulator variant, intended where the downstream pressure sits below the standard range. The exact regulation range for this variant is not published in the catalogue, so we confirm it on request. Everything else about the decode - G1/2 port, 5 um element, differential-pressure drain, psi square gauge, check valve, no bracket - is unchanged.
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.