
The AirTAC GFR Filter Regulator GFR400C15MJF3 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 GFR400C15MJF3 is a filter regulator: filtration and pressure regulation in a single body with a drain bowl, and no lubricator. This 400-size configuration has a PT1/2 port, a manual drain, the standard 40 um filter element, and an embedded square gauge reading in bar. With the manual drain, the regulated outlet is adjusted across 0.05-0.9 MPa (7-130 psi), and maximum working pressure is 1.0 MPa (145 psi). It runs on compressed air only at -5 to 70 C (non-freezing), and the 400-size bowl is polycarbonate (PC).
This is a genuine AirTAC part from the G-series, available in 200, 300, 400 and 600 sizes with a choice of drain type, filter grade, gauge style and thread. Flow is published as curves rather than a single rating, so we confirm datasheet figures for your application on request.
| Model | Airtac GFR Filter Regulator GFR400C15MJF3 |
|---|---|
| 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) |
Drops regulated air from a plant main to an assembly cell, giving the cell one set pressure point for its cylinders and air motors with a bar gauge matching European instruments.
Feeds gate, stopper and diverter cylinders along a conveyor line, filtering line debris with the 40 um element and holding a steady pressure for consistent gate timing.
Supplies quarter-turn pneumatic actuators on process valves, where the regulator sets the actuator pressure and the square bar gauge reads cleanly against panel instrumentation.
The 400 size carries a 1/2 in PT port as standard; G (BSPP) and NPT threads are catalogue options you can order instead. Manual drain (this code) fits installations attended at intervals; automatic or differential-pressure drains better suit unattended running. The standard element is 40 um; add the W code for 5 um where finer filtration is needed. The square gauge here reads bar, with MPa and psi scales and an external round gauge available in the series. J means no mounting bracket is included.
Since flow is published as curves, not a single rating, 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.
We do not state a single rated flow because AirTAC publishes G-series flow as performance curves, not one figure. Share your inlet pressure and target flow and we will confirm the datasheet and correct size choice for you on request.
F is the square embedded gauge and 3 is the bar scale, so this unit carries a square gauge reading in bar. MPa (1) and psi (2) scales are available, and an external round gauge is a series option.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.