The AirTAC GFR400C10AC2TK AirTAC Filter Regulator, NPT3/8, Auto Drain 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 GFR400C10AC2TK is an AirTAC GFR400 filter regulator: filtration and pressure regulation combined in one body, with no lubricator. This configuration is the size 400 unit with a 3/8 in NPT port, a 40 um standard filter element and an automatic drain that expels collected condensate without manual attention. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), a round external gauge scaled in psi, and a reverse (check) valve fitted. 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 polycarbonate, and a mounting bracket is included.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of 40 um or 5 um (W) filtration, differential-pressure, automatic or manual drains, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rated figure; ask us and we will confirm the datasheet figures against your application before you order.
| Model | GFR400C10AC2TK AirTAC Filter Regulator, NPT3/8, Auto Drain |
|---|---|
| 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) |
Feeds clean, regulated air to the tool-change clamps and pneumatic actuators on a machining centre, with the automatic drain keeping condensate out of the circuit between shifts.
Conditions the air feeding cylinder-driven diverters, pushers and sealing jaws on a packaging conveyor, holding a steady set pressure so cycle behaviour stays repeatable.
Serves as the point-of-use filter regulator on a drop from the plant air ring to an assembly cell, protecting downstream valves and cylinders from water and particulate carryover.
Sizing starts with the port and size step: this unit is size 400 with a 3/8 in NPT port, the right step when your line flow sits above what a 1/4 in unit carries but below the 1/2 in size. Because flow is published as curves and not a single rating, ask us to confirm the sizing against your application before ordering. The decode choices on this code are already fixed: automatic drain (no daily manual blowdown), 40 um standard filtration (the 5 um W element is the option if downstream valves need finer protection), a round gauge scaled in psi, and NPT thread (PT is the standard thread; G and NPT are the catalogue options to order). A bracket is included with this unit. If you need the low-pressure type, a square embedded gauge, or a check-valve-free version, those are different codes in the same series.
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. Tell us your application and we will confirm the datasheet flow figures for the GFR400 at 3/8 in and check the sizing with you before you order.
The A in the code means the bowl drains collected condensate automatically instead of waiting for someone to open a manual drain. It suits units mounted in awkward spots or on lines that run unattended. Note that with an automatic drain the regulator adjustment range is 0.15-0.9 MPa (20-130 psi); a manual-drain version of the same size widens the lower end of that range.
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.