The AirTAC GFR40015MC1WTK AirTAC Filter Regulator NPT1/2 5um is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/2" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR40015MC1WTK is an AirTAC GFR400 filter regulator: one body that removes water and particulate from compressed air and then regulates downstream pressure. This configuration is the 400 size with a 1/2 in NPT port, fine 5 um filtration (the W grade, against the 40 um standard element), a manual drain bowl in polycarbonate, a round pressure gauge scaled in MPa, a fitted reverse/check valve, and the mounting bracket included. The manual-drain version regulates from 0.05 to 0.9 MPa (7-130 psi), with a maximum inlet pressure of 1.0 MPa (145 psi) and a working temperature range of -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans the 200, 300, 400 and 600 sizes with port options from 1/8 in to 1 in, PT as the standard thread and G or NPT as order options, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um filtration, and gauge or no-gauge builds. Flow for this series is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR40015MC1WTK AirTAC Filter Regulator NPT1/2 5um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, MPa scale |
| Reflux valve | Fitted (reverse flow permitted) |
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 0.05 - 0.9 MPa (7 - 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. |
|---|---|
| 15 | Port size PT1/2". This body offers 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Feeding clamping cylinders and pneumatic presses on a production line, where the 5 um element protects valves and cylinders from water and swarf while the regulator holds a steady working pressure and the check valve holds the circuit if supply drops.
Supplying the air cylinders, grippers and diverters on packaging and carton-sealing conveyors, with the 1/2 in NPT port matching the machine's main air drop and the manual drain bled during scheduled line cleaning.
Conditioning the compressed air feeding lab automation, test rigs and analytical equipment enclosures, where fine 5 um filtration and a stable, locally monitored regulated pressure protect sensitive instruments.
Size and port step up together: 200, 300, 400 and 600 carry progressively larger ports and flow capacity, so match the 400 size / 1/2 in NPT port to the air demand of the circuit - and let us check the published flow curve against your requirement before you order. This unit is already specified with the choices that matter: 5 um fine filtration for downstream components that need cleaner air than the 40 um standard element delivers, a manual drain for installations where an operator can bleed the bowl on a routine walk-round, and a round MPa gauge for a clear external pressure readout. The fitted reverse/check valve holds downstream pressure if the upstream supply is interrupted. If you would prefer a different drain type, the 40 um element, a square embedded gauge, a psi or bar scale, or a G (BSPP) or PT thread instead of NPT, those are catalogue options across the GFR range - tell us and we will decode the right code. A mounting bracket is included with this unit.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow 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 here. Tell us your application and required flow, and we will confirm the datasheet curve figures for this 400-size, 1/2 in port unit on request before you order.
The M code in this model means the bowl is drained by hand, which suits installations with a routine maintenance walk-round; automatic and differential-pressure drains are catalogue alternatives if no one is regularly on site. The W code specifies the 5 um element instead of the 40 um standard, giving finer filtration for downstream valves, cylinders and instruments.
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.