The AirTAC GFR40015C3WT AirTAC Filter Regulator NPT1/2 5 um 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 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 GFR40015C3WT is an AirTAC GFR400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure between 0.15 and 0.9 MPa (20-130 psi), all in one body. This configuration has a 1/2 in NPT port, a 5 um filter element, a differential-pressure drain that clears condensate as air flows through, and a round pressure gauge reading in bar. The polycarbonate bowl shows the condensate level at a glance, and the unit handles up to 1.0 MPa (145 psi) inlet at -5 to 70 C, non-freezing.
This is a genuine AirTAC part from the GFR400 series. The GFR line spans sizes 200 to 600 with ports from 1/8 to 1 inch and PT, G or NPT threads, plus 40 um or 5 um elements and a choice of drains and gauges, so a matched unit exists for most line sizes. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet for your application before ordering.
| Model | GFR40015C3WT AirTAC Filter Regulator NPT1/2 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 5 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 — round, bar 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. |
|---|---|
| 15 | Port size PT1/2". 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 3 | Gauge scale: bar. 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. |
| (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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Filtered, regulated air to the control valves and air logic on a metal stamping line, where the 5 um element keeps pilot valves clean and the bar gauge keeps the set pressure visible.
Feeding stopper and pusher cylinders on a bottling conveyor: the regulator holds a steady setting as formats change, and the differential-pressure drain clears condensate without stopping the line.
Supplying pneumatic grippers and small actuators on laboratory automation, where 5 um filtration and a bar-scaled gauge keep the air clean and the pressure setting repeatable.
Choose the GFR400 size by port and required flow: this unit is 1/2 in NPT, so step up to size 600 if your line runs near the top of the flow curve. The 5 um element (code W) suits instruments and precision valves, while the 40 um standard element protects general plant equipment. Drain choices are differential-pressure (this unit), automatic, or manual. The round gauge on this unit reads bar; embedded square gauges and MPa or psi scales are catalogue options. PT is the standard thread and G or NPT are order options - this unit is specified NPT. 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 GFR400 flow as curves rather than a single rated figure, so we do not quote a number. Send us your application details and we will confirm the flow and the full datasheet figures on request.
The W code specifies the 5 um element, one grade finer than the 40 um standard, suited to instruments and precision valves. The differential-pressure drain (the default) bleeds condensate away as air flows through, with no operator action; automatic and manual drains are catalogue alternatives.
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.