The AirTAC AirTAC GFR400C15AC2WT 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 GFR400C15AC2WT is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in one body. This size 400 unit is supplied with a 1/2 in NPT port, a 5 um filter element (the finer of the two catalogue grades), an automatic drain that ejects collected condensate without operator attention, and a round pressure gauge reading in psi. The regulation range is 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). The polycarbonate bowl and mounting bracket are included; no reverse/check valve is fitted.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and can be ordered with manual or differential-pressure drains, the 40 um standard element, G (BSPP) or NPT threads, square or round gauges in MPa, psi or bar scales, and with or without a bracket. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | AirTAC GFR400C15AC2WT 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) |
Filtered, regulated air at the machine drop keeps pneumatic clamps, tool-changer actuators and coolant-mist lines on a CNC machining centre supplied with dry air at a steady set pressure.
Stable regulated pressure to the cylinders and grippers that form, fill and seal cartons keeps conveyor indexing repeatable, while the 5 um element screens water and particles from the supply.
A 5 um filtered, regulated feed to spray guns helps keep water and particulate out of the finish and holds the gun inlet pressure the painter sets, run after run.
Size 400 with a 1/2 in port sits in the upper half of the GFR range; step up or down through sizes 200, 300 and 600 as your port and flow needs change. Drain choice matters: this unit's automatic drain keeps condensate off your line unattended, while manual and differential-pressure drains are available when you prefer operator-controlled or pressure-differential dumping. The 5 um element (code W) is the finer option versus the 40 um standard - choose it where downstream equipment is sensitive to finer particles. Gauge scale (MPa, psi or bar), thread (PT standard, with G/BSPP or NPT as order options) and bracket are all decodable choices. Flow for this series 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 flow for the GFR series as curves rather than a single rated figure, so we do not quote a number here. Ask us and we will confirm the flow curve and datasheet figures for this size 400, 1/2 in unit against your application.
The A in the code sets an automatic drain, which ejects collected condensate without operator attention. The same GFR400 size is also available with a manual drain (code M) or the default differential-pressure drain, and with the 40 um standard element if 5 um filtration is finer than your application needs.
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.