The AirTAC GFR400C10ALC2K AirTAC Filter Regulator, PT3/8, Low-Pressure 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.
GFR400C10ALC2K is an AirTAC GFR400 filter regulator: filtration and pressure regulation combined in a single body, so one unit removes water and particulate from compressed air and holds a regulated downstream pressure. This configuration is the size 400 body with PT3/8 ports (PT thread as standard), a 40 um standard filter element, an automatic drain that expels collected condensate on its own, the low-pressure regulator type, a round pressure gauge reading in psi, a reverse/check valve fitted, and a mounting bracket included. The polycarbonate bowl is standard at this size, and the maximum working (inlet) pressure is 1.0 MPa (145 psi) with an operating temperature of -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR series is available in sizes 200, 300, 400 and 600 with matching port sizes, and options include a 5 um element (code W), manual or differential-pressure drains, alternative gauge scales (MPa, psi, bar), G (BSPP) and NPT thread variants, and no-bracket or no-gauge configurations. Flow is published as curves rather than a single rated figure, so we confirm flow and datasheet figures on request before you order.
| Model | GFR400C10ALC2K AirTAC Filter Regulator, PT3/8, Low-Pressure |
|---|---|
| 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, low-pressure regulated air to clamping fixtures and swing clamps, where the automatic drain keeps condensate out of the fixtures between cycles.
Conditioned air for conveyor diverters, pushers and carton-forming cylinders on a packaging line, with the low-pressure regulator holding a gentle, consistent setting.
Clean, regulated pilot air to solenoid and diaphragm process valves in a plant loop, with the reverse/check valve protecting the set pressure from upstream backflow.
Start with the port step: size 400 with PT3/8 ports sits in the middle of the GFR range, so step up to size 600 or down to 300/200 depending on the flow your line needs - and because flow is published as curves rather than a single rating, ask us to confirm sizing against your application before ordering. This unit is the low-pressure regulator type, intended for applications needing lower regulated set pressures; the exact adjustment range for this variant is not published, so confirm your set pressure with us. Other decodable choices: automatic drain (this code) versus manual or differential-pressure drain; 40 um standard element versus 5 um (code W) for finer filtration; gauge scale in psi here, with MPa or bar available; PT thread as standard with G (BSPP) and NPT as order options; and the bracket fitted here can be omitted (code J).
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 as curves, not as a single rated number, so we do not quote a rated flow, Cv or SCFM figure. Send us your application conditions (inlet pressure, set pressure and required flow) and we will confirm the sizing from the datasheet curves on request before you order.
The automatic drain expels collected condensate from the bowl on its own, so the unit does not need routine manual draining - useful on lines that are not attended daily. If you prefer, the GFR400 is also available with a manual drain (code M) or the differential-pressure drain (blank), which is the default. This exact model, GFR400C10ALC2K, is the automatic-drain version.
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.