The AirTAC GFR400C15ANWT 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 GFR400C15ANWT is a filter regulator: one body that first removes water and particulate from compressed air, then regulates downstream pressure. This 400-size unit is ported NPT1/2 and carries the 5 um filter element (code W) for finer filtration than the 40 um standard, with an automatic drain that expels collected condensate from the bowl without manual attention. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing). No gauge is fitted on this configuration and no reverse/check valve is included; a mounting bracket is included. The bowl on this 400 size is polycarbonate (PC).
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and with choices of drain type, filter grade, gauge and scale, thread form and bracket. Flow is published by AirTAC as curves rather than a single rated figure, so we confirm the datasheet and flow figures for your application on request.
| Model | GFR400C15ANWT 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) |
Point-of-use conditioning ahead of a CNC machine's pneumatic tool-changer and clamping circuits: the 5 um element protects fine valves from particles while the regulator holds a steady set pressure for consistent clamping force.
Conditioning the air feeding lab actuators, sample-handling cylinders and analytical-equipment pneumatics, where the 5 um grade and automatic drain keep moisture and fine contamination out of sensitive instruments.
Filtering and regulating air for the pick-and-place and sealing cylinders on a packaging conveyor, with the automatic drain handling condensate through multi-shift running so the line does not stop for bowl draining.
Step through the decodable choices before ordering. Size and port: 200/300/400/600 step up in port and flow capacity - this unit is 400 size with a 1/2 inch port, so match it against the air demand of the circuit. Drain: automatic (this unit) empties the bowl by itself; manual and differential-pressure drains are the alternatives. Filter grade: 40 um is standard, 5 um (W, fitted here) suits finer-particle-sensitive downstream equipment. Gauge: this configuration has none; gauge options with MPa, psi or bar scales can be ordered. Thread: PT is the standard; G (BSPP) and NPT (this unit) are catalogue options to order. Bracket: included here.
One honest routing note: AirTAC publishes filter-regulator flow as curves, not as a single rated number, so we do not quote a rated flow figure. Ask us to confirm sizing against your application and we will pull 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 publishes flow for the GFR400 series as curves, not as a single rated figure, so we do not quote a rated flow, Cv or SCFM number. Contact us and we will confirm the datasheet curves for this NPT1/2, 5 um configuration against your application before you order.
The W code in GFR400C15ANWT selects the 5 um element instead of the 40 um standard, and the A code selects the automatic drain, which ejects condensate without manual attention. The 40 um grade and manual or differential-pressure drains are available as alternative catalogue configurations, as are gauge options and G or PT threads.
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.