The AirTAC GFR400C15ALF2TK AirTAC Filter Regulator NPT1/2 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 GFR400C15ALF2TK is a filter regulator: water and particulate filtration plus pressure regulation combined in a single body, with a drain bowl but no lubricator. This size 400 unit has 1/2 in NPT ports, a 40 um standard filter element, an automatic drain, and the low-pressure regulator type, whose exact adjustment range is not published and is confirmed on request. An embedded square gauge with a psi scale is fitted, a reverse/check valve is built in, a mounting bracket is included, and the metal bowl collects drained water and particulate away from the downstream air. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part from the GFR400 series. Across the GFR line you can order sizes 200 to 600 with ports from 1/8 to 1 in, differential-pressure, automatic or manual drains, a 5 um element (code W), gauge scales in MPa, psi or bar, and G (BSPP) or NPT threads in place of the PT standard. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and any datasheet figure against your application before ordering.
| Model | GFR400C15ALF2TK AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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) |
Feeding low-pressure clamping circuits on a CNC machining fixture: filtered, regulated air holds workpieces without over-pressuring the clamps, and the automatic drain clears condensate from the supply line.
Supplying gripper and pusher cylinders on a bottling line that runs at reduced pressure: the 40 um element stops particulate reaching the valves, and the square psi gauge gives operators a local setpoint readout.
Conditioning the compressed-air header feeding a laboratory or test bench: water and particulate are expelled automatically, and the low-pressure regulator type covers circuits that run below standard settings.
Every choice on this unit is decodable from the code. Step the size (200/300/400/600) and port (1/8 to 1 in) against the flow your line needs - larger sizes carry larger ports. Choose the drain: automatic as fitted here (code A), manual (M), or the differential-pressure default. Choose the element: 40 um standard or 5 um (code W). Pick the gauge scale - MPa, psi or bar - and the thread: PT is the standard, while G (BSPP) and NPT (as on this unit, code T) are order options. A bracket is included unless code J specifies otherwise. Flow is published as curves, not a single rating, so send us your flow and pressure requirements and we will confirm sizing from the datasheet 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 GFR flow as curves rather than a single rated figure, so we do not quote a number here. Tell us your required flow and working pressure and we will confirm sizing from the datasheet on request.
Code A fits the automatic drain, which expels collected condensate without manual attention. The family is also available with a manual drain (code M) or the differential-pressure default. The adjustment range for this low-pressure regulator type is not published; we confirm it on request.
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.