The AirTAC AirTAC GFR400C10F1TK Filter Regulator 3/8in NPT 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 GFR400C10F1TK is a size-400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a 3/8 in NPT port, the standard 40 um filter element, a differential-pressure drain that bleeds collected condensate automatically whenever the pressure drop across the element rises, an embedded square gauge scaled in MPa, and a fitted reverse (check) valve that lets downstream air escape rather than back through the unit on shutdown. The pressure setting range is 0.15-0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the working temperature range is -5 to 70 C (non-freezing). The bowl on this size is PC (polycarbonate), and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600, with port options from 1/8 in to 1 in, PT as the standard thread and G (BSPP) or NPT as order options, manual or automatic drains in place of the differential-pressure default, an optional 5 um element (code W), a low-pressure regulator type, and gauge scales in MPa, psi or bar. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | AirTAC GFR400C10F1TK Filter Regulator 3/8in NPT |
|---|---|
| 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 tool-clamp and chip-clearing actuators on a machining centre: the 40 um element keeps swarf-charged, wet shop air out of the valves, the regulator holds a steady setting to the clamps, and the check valve lets the clamp circuit vent at the machine when supply is lost.
A point-of-use station on a carton-forming and sealing line: one body filters and regulates the air feeding the sealing cylinders and vacuum generators, the differential-pressure drain clears condensate between shifts without a manual blow-down routine, and the MPa gauge gives operators a set-and-forget reference.
Mounted in the cell's pneumatic panel ahead of solenoid valve manifolds: the regulator pins supply pressure for repeatable weld-gun clamping, the filter stops moisture and pipe scale reaching the manifold, and the included bracket gives a clean panel mount beside the cell's other air prep components.
Start with the port and size step: size 400 with a 3/8 in NPT port suits lines whose consumption sits in the upper mid-range of the G-series flow curves - size up to 600 or down to 300 if your demand sits near a curve boundary. Because flow is published as curves and not as a single rating, ask us to confirm sizing against your application before ordering. Then settle the decodable choices: drain type (this unit uses the differential-pressure default; automatic or manual drains are orderable), filter grade (40 um standard as here, 5 um with code W where finer filtration is needed), gauge scale (this unit ships with the embedded square gauge in MPa; psi or bar scales and an external round gauge are options), thread (PT is the catalogue standard; G and NPT, as on this unit, are specified at order), and the bracket, which is included here. The fitted reverse (code K) valve is worth keeping where downstream cylinders or actuators must vent locally on air-off.
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, not as a single rated figure, so we do not quote a Cv, l/min or SCFM number. Tell us your operating pressure and air consumption and we will confirm the relevant datasheet curve and sizing on request before you order.
K means a reverse (check) valve is fitted: on air-off, downstream air can vent through the unit's outlet side rather than flowing back through the filter-regulator. It is a useful choice on circuits with cylinders or actuators that should relax when supply is removed; order the code without K if you do not want the check function.
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.