The AirTAC GFR400C15AF1WTK 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 AirTAC GFR400C15AF1WTK is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is built with a 1/2 in NPT port, a 5 um filter element (code W), an automatic drain on the bowl, and a standard regulator with an adjustment range of 0.15-0.9 MPa (20-130 psi). The embedded square pressure gauge (MPa scale) is fitted, a reverse/check valve is included, and a mounting bracket comes with the unit. The polycarbonate bowl on this size 400 unit carries a maximum working pressure of 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part from the GFR filter-regulator family, which spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in. Across the family you can order manual, automatic or differential-pressure drains, a 40 um standard or 5 um fine element, square or external round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow figures for this series are published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR400C15AF1WTK 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) |
Clean, regulated air for the pneumatic cylinders and stopper gates on a bottling or carton packaging conveyor, with the 5 um element protecting seals from particulate and the automatic drain handling condensate.
Point-of-use filtration and regulation ahead of spray guns and air-bearing equipment in a paint booth, where the 5 um grade and a stable set pressure help keep finish quality consistent.
A filter regulator mounted in the air-preparation panel of a CNC machining centre, supplying tool-change clamps and coolant-mist circuits at a fixed pressure with the check valve holding downstream conditions.
Size 400 with a 1/2 in port sits in the upper half of the GFR range (200/300/400/600); step up or down according to the flow your line needs, and note that larger sizes carry larger ports and more flow capacity. This unit already carries the 5 um (W) element, the automatic drain, the square MPa gauge and the reverse/check valve, so the main remaining decodable choices are elsewhere in the family: drain type (automatic vs manual vs differential-pressure), element grade (40 um standard vs 5 um), gauge scale (MPa, psi or bar), and thread (PT is the standard; G and NPT are catalogue options to order). A mounting bracket is included with this unit.
Because AirTAC publishes flow for this series only as curves and not as a single rated figure, we do not quote a flow number here. Send us your application details and we will confirm the sizing against the datasheet curves 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 does not publish a single rated flow figure for the GFR series; flow is given only as performance curves. We do not quote a number for that reason, but we will confirm the datasheet curves for this size 400, 1/2 in unit against your application on request before you order.
W is the filter-grade code: this unit carries the optional 5 um element instead of the 40 um standard, for finer particulate removal. The A in the code is the automatic drain, which expels collected condensate from the bowl without manual intervention; manual and differential-pressure drains are available elsewhere in the GFR400 range if you prefer a different arrangement.
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.