The AirTAC GFR400C15F1WT AirTAC 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 GFR400C15F1WT is an AirTAC GFR filter regulator: water and particulate filtration plus downstream pressure regulation combined in a single body with one drain bowl. This configuration is size 400 with a 1/2 in NPT thread, fitted with the fine 5 um filter element (code W), a differential-pressure drain that discharges condensate when the pressure drop across the element rises, and an embedded square pressure gauge scaled in MPa. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the polycarbonate bowl suits this size 400 unit. Operating temperature is -5 to 70 C, non-freezing. A mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and options that include manual or automatic drains, the 40 um standard element in place of the 5 um fitted here, psi or bar gauge scales, an external round gauge, G (BSPP) or NPT threads in place of the PT standard, and a reverse/check valve. 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 on request.
| Model | GFR400C15F1WT AirTAC 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) |
Feeding filtered, regulated air to pneumatic clamps, tool-change cylinders and chip-clearing jets on a machining centre, where the 5 um element helps protect directional valves from fouling.
Conditioning the supply to carton-formers, case sealers and pick-and-place cylinders along a packaging conveyor, holding a steady set pressure as station demand changes through the cycle.
A filter regulator at the drop point of a plant air ring main, giving each assembly station its own clean air and locally adjustable pressure without disturbing the main line setting.
Every choice on this unit is decodable from the code. The size step (200/300/400/600) sets the port and the flow band, so step up where the line draws more air - the 400 size with its 1/2 in port sits in the upper-middle of the range. Drain type matters: differential-pressure (fitted here) self-discharges as the element loads, automatic (A) bleeds continuously, and manual (M) is bled by hand - note the manual option also widens the regulator adjustment range to 0.05-0.9 MPa (7-130 psi) versus 0.15-0.9 MPa (20-130 psi) here. Element grade is 40 um standard or 5 um fine (W, fitted) for sensitive valves and instruments. Gauge scale is MPa, psi or bar, with an embedded square gauge standard and an external round gauge optional. Thread is PT as the standard with G and NPT as order options - this unit is specified with NPT. The bracket is included (code J deletes it). Flow is published as curves, not a single rating, so 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.
AirTAC publishes flow for the GFR400 series as curves, not as a single rated figure, so we do not quote a number here. Tell us your inlet pressure, set pressure and air demand and we will confirm the flow figures and the full datasheet for this model on request.
The differential-pressure drain fitted here opens to discharge condensate when the pressure drop across the 5 um element rises, so it needs no external signal or routine attention. An automatic drain (code A) discharges continuously, while a manual drain (code M) is bled by hand and also widens the regulator adjustment range to 0.05-0.9 MPa (7-130 psi) versus the 0.15-0.9 MPa (20-130 psi) of this unit.
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.