The AirTAC GFR400C15F3WT 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 GFR400C15F3WT is an AirTAC GFR400 filter regulator: one body that first removes water and particulate from compressed air, then regulates downstream pressure. This configuration is the size 400 unit with a 1/2 in NPT port, a fine 5 um filter element (the W grade, instead of the 40 um standard), a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and a fitted square gauge reading in bar. Regulation range is 0.15-0.9 MPa (20-130 psi), with a maximum inlet pressure of 1.0 MPa (145 psi) and an operating temperature of -5 to 70 C, non-freezing. The polycarbonate bowl suits the 400 size, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family is also available in sizes 200, 300 and 600, with port options from 1/8 in to 1 in, PT as standard thread and G or NPT to order, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, gauge scale options, and a reverse/check valve option. Flow 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 | GFR400C15F3WT 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) |
Mounted ahead of a solenoid-valve manifold on an automated assembly line, this unit filters the plant air to 5 um and holds a steady regulated pressure so valve stations and actuators cycle consistently.
On a carton-forming and sealing line, the filter regulator feeds the cylinders and grippers that erect, fill and close cartons, with the differential-pressure drain keeping condensate out of the mechanism during continuous runs.
Installed at the air inlet of a CNC machine tool or fixture-clamping circuit, it removes water and particles from the supply and lets the setter dial in the clamping pressure on the bar-scale gauge.
Work through the decodable choices in order. Size 400 with a 1/2 in NPT port suits lines with higher air demand; step down to 200/300 or up to 600 if your flow requirement differs - we confirm flow against the published curves before you order. The 5 um element on this model is the finer of the two grades (40 um is standard), a sensible pick where downstream valves and cylinders see finer contamination. The differential-pressure drain needs no operator attention; choose automatic or manual drain codes if your maintenance routine prefers them. Gauge scale is bar here, with MPa and psi scales available, and an external round gauge is an option. Thread is NPT on this unit; PT is the standard and G is also an order option. A mounting bracket is included.
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 rather than a single rated figure, so we do not quote one number. Tell us your line pressure, downstream demand and allowable pressure drop, and we will confirm the flow and sizing from the datasheet on request before you order.
The W in the code specifies the finer 5 um filter element instead of the 40 um standard, which suits sensitive downstream components. The drain is differential-pressure, the default type: it discharges collected condensate automatically as air flows through, with no manual draining needed. Automatic and manual drain versions are available as separate codes.
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.