The AirTAC GFR400C15MJC3WT AirTAC Filter Regulator NPT1/2 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 AirTAC GFR400C15MJC3WT is a GFR400 filter regulator: water and particulate filtration plus downstream pressure regulation in a single body. This configuration carries a NPT1/2 port, a 5 um filter element (the finer of the two available grades), a manual drain for controlled, scheduled blow-down, a round pressure gauge reading in bar, and the standard regulator with a 0.05-0.9 MPa (7-130 psi) setting range. Maximum inlet pressure is 1.0 MPa (145 psi), the working temperature range is -5 to 70 C (non-freezing), and the polycarbonate bowl suits the size-400 frame.
This is a genuine AirTAC part. GFR400 is the size-400 member of the GFR filter-regulator family, which spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, a choice of 40 um or 5 um filtration, differential-pressure, automatic or manual drains, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR400C15MJC3WT AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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) |
Filtered, regulated air to tool clamps, pallet fixtures and chip-clearing blow-off on a machining centre, with the 5 um element guarding fine pilot valves and the round bar gauge giving operators a local setpoint readout.
A regulated supply to filler actuation, capping heads and carton-sealer cylinders on a bottling line, where the manual drain lets maintenance blow down condensate on a fixed schedule in a non-freezing indoor plant.
A filtered, regulated drop at a maintenance bench for air tools, test rigs and cylinder bench-testing, with the bar-scale gauge for quick setting and NPT1/2 plumbing straight into standard shop piping.
Every choice in this unit is decodable from the code. Step the size (200/300/400/600) and its port - here size 400 with NPT1/2 - against the air your line needs; larger sizes move more air. Choose the drain: differential-pressure (default), automatic for unattended condensate removal, or manual as fitted here for deliberate, scheduled draining. Choose the filter grade: 40 um standard or 5 um (code W) as on this unit for finer protection of downstream components. Gauge scale is MPa, psi or bar - this unit reads bar - and thread is PT as standard with G and NPT as order options; a mounting bracket is optional. Because flow is published as curves rather than a single rating, send us your application and we will confirm sizing against the datasheet 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 GFR400 flow as curves, not as a single rated figure, so we do not quote a l/min or SCFM number. Send us your application and we will confirm the flow curve and the datasheet figures for this exact configuration on request.
The trailing T decodes to NPT threading on the 1/2 in port; PT is the catalogue standard for this series and G (BSPP) is also available to order - these are specification choices on the order code, not delivery options. The other positions here are M (manual drain), J (no bracket), C3 (round gauge, bar scale) and W (5 um filter element instead of 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.