The AirTAC AirTAC GFR400C15MF3WT Filter Regulator NPT1/2, 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 GFR400C15MF3WT is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 400 unit is threaded NPT 1/2 in, carries a 5 um filter element (the finer of the two catalogue grades), a manual drain on the polycarbonate bowl, and an embedded square pressure gauge reading in bar. The regulator is the standard type with an adjustment range of 0.05-0.9 MPa (7-130 psi), the maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, a choice of manual, automatic or differential-pressure drains, 40 um or 5 um elements, square or round gauges with MPa, psi or bar scales, and PT, G or NPT threads; a mounting bracket is included with this configuration. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | AirTAC GFR400C15MF3WT Filter Regulator NPT1/2, 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) |
Conditioned, regulated air for the grip and lift cylinders on a bottling or filling line, with the 5 um element helping keep water and debris in shop air away from valve and cylinder seals.
Steady downstream pressure for the divertor and stopper gates along a conveyor run, with the manual drain letting an operator bleed accumulated water from the bowl at shift start.
Clean, regulated air to spray guns in a paint or coating booth, where the 5 um grade supports a defect-free finish by cutting water and particulate carried in the supply line.
The real, decodable choices on this family: step the size (200/300/400/600) and its port (1/8 to 1 in) against the air your line consumes; pick the drain - manual here, with automatic and differential-pressure alternatives; pick the filter grade, 40 um standard or 5 um (this unit is 5 um, code W); pick the gauge scale, MPa, psi or bar (this one reads bar); pick the thread, PT as standard with G and NPT as order options (this unit is NPT); and the bracket, which is included here. One honest routing note: AirTAC publishes flow as curves, not a single rating, so send us your flow and pressure requirements and we will confirm the right size from 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 flow for the GFR series as curves rather than a single rated figure, so we do not quote one number. Tell us your required flow and upstream pressure and we will confirm sizing for this model from the datasheet on request.
This unit is coded M for a manual drain: an operator opens the drain to expel collected water from the bowl. The GFR family also offers automatic and differential-pressure drains; note the regulation range differs - 0.05-0.9 MPa (7-130 psi) with a manual drain versus 0.15-0.9 MPa (20-130 psi) with automatic or differential-pressure drains.
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.