The AirTAC GFR400C15MLJC2W AirTAC Filter Regulator PT1/2, 5 um 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 GFR400C15MLJC2W is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure at a set point, in a single body. This size 400 unit is threaded PT1/2 (1/2 in PT; G and NPT are order options), carries the 5 um filter element (the finer of the two published grades), and drains by hand through its manual drain. The regulator is the low-pressure type, and the code specifies an external round gauge reading in psi; no reverse/check valve is fitted and no mounting bracket is included. 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 in the GFR series, which spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, a choice of manual, automatic or differential-pressure drains, 40 um or 5 um elements, gauge styles and scales, PT, G or NPT threads, and bracket options. Published flow data for the series is given as curves rather than a single rating, so ask us to confirm flow and other datasheet figures for this exact model before you order.
| Model | GFR400C15MLJC2W AirTAC Filter Regulator PT1/2, 5 um |
|---|---|
| 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) |
Feeding low-pressure clamping circuits on a furniture or appliance press line, where the regulator holds a reduced set point downstream of the plant air supply while the 5 um element keeps sludge and scale out of the clamp valves.
A filter regulator ahead of the directional valves on a bottling or carton-packing conveyor, supplying clean, regulated air to the stopper and pusher cylinders, with condensate drained by hand at shift checks.
Supplying air to a leak-test or calibration rig, where the 5 um element protects sensitive transducers and the round psi gauge gives a direct readout for setting a low-pressure test condition.
The first choice is size: 200, 300, 400 and 600 step up in port and flow capacity, and this unit sits at size 400 with a 1/2 in PT port - match the step to your line's flow demand and pipe size. Where a bowl is fitted, choose the drain: manual (as here, drained by hand during maintenance checks), automatic, or differential-pressure; the bowl on this size is polycarbonate (PC). Choose the element grade, 40 um standard or 5 um (W) for finer protection, as decoded here. Regulated units take an embedded square gauge or an external round gauge with MPa, psi or bar scales - this code carries the round psi gauge - and the low-pressure regulator type is selected where the circuit works below standard ranges; its exact setting range is not published, so confirm it with us. Thread is PT as standard with G (BSPP) and NPT as order options, and brackets are optional (this configuration omits it). Flow for the GFR series is published as curves, not a single rated figure, so send us your application conditions and we will confirm sizing against the datasheet 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 GFR-series flow as curves rather than a single rated figure, so we do not quote a number here. Send us your inlet pressure, set point and expected air consumption, and we will confirm the flow from the datasheet for this exact model before you order.
This code specifies a manual drain: accumulated condensate is drained by hand during maintenance checks. The same size 400 unit is also available with an automatic or differential-pressure drain if you would rather not rely on manual draining - tell us which you prefer when ordering. Note that this configuration also carries the 5 um (W) element rather than the 40 um standard.
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.