The AirTAC GFR400C15MLJF2WG AirTAC Filter Regulator G1/2 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 GFR400C15MLJF2WG is an AirTAC GFR filter regulator: water and particulate filtration plus pressure regulation combined in one body, with a metal drain bowl underneath. This configuration is built around a G1/2 (BSPP) port on the 400 size, a 5 um filter element (the 40 um element is the series standard; 5 um is the W option), a manual drain, the low-pressure regulator type, and an embedded square gauge reading in psi. No mounting bracket is fitted and no reverse (check) valve 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. The GFR family is made in sizes 200, 300, 400 and 600, with ports from 1/8 to 1 inch, PT as the standard thread and G (BSPP) or NPT as order options, a choice of manual, automatic or differential-pressure drain, 40 um or 5 um filtration, and gauge scales in MPa, psi or bar. Flow is published as curves rather than a single rated figure, so ask us to confirm the flow or datasheet figures for this exact model on request.
| Model | GFR400C15MLJF2WG AirTAC Filter Regulator G1/2 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) |
On a CNC fixture line, this unit strips water and particles from shop air and holds a steady regulated supply to the clamping cylinders, with the psi gauge giving the operator a direct pressure reading at the fixture.
Sorting gates and stoppers on a distribution conveyor run on small cylinders that misbehave when air is wet or unregulated; a filter regulator at the gate manifold keeps the air clean and the pressure steady for repeatable diverting.
Filling and capping heads on a packaging line need clean, regulated air for their small cylinders; mounting this filter regulator at the machine drop lets the technician set and read pressure in psi right at the point of use.
Pick the size and port against the air demand of the circuit: the 400 size here carries a 1/2 inch port, and stepping up to 600 or down to 300 changes both the connection and the flow capacity - we can confirm the flow curve for any size on request. The other decodable choices are drain type (this model has a manual drain; automatic and differential-pressure drains are the alternatives), filter grade (5 um here versus the 40 um standard), gauge scale (psi here; MPa and bar scales exist), thread (PT is standard, G and NPT are order options - this unit is the G version), and bracket (not fitted on this code). Because this is the low-pressure regulator type and its exact regulation range is not published, confirm the range with us before ordering. Check sizing against the application's flow curve before you order.
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 as a single rated number, so we do not quote a figure here. Tell us your operating pressure and air demand and we will confirm the flow from the datasheet for this exact model on request.
This unit has a manual drain: the metal bowl is drained by hand, which suits installations that are checked regularly or shut down between shifts. If the unit sits in a hard-to-reach spot or runs unattended, ask us about the automatic or differential-pressure drain versions of the same series instead.
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.