The AirTAC GFR400C10AF2WK AirTAC Filter Regulator PT3/8, 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 GFR400C10AF2WK 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 5 um filter element (code W, one step finer than the 40 um standard), an automatic drain that discharges collected condensate without manual attention, an embedded square gauge reading in psi, and a reverse/check valve (code K) that holds the set pressure if the upstream supply is interrupted. The port is PT3/8 (3/8 in, PT thread as standard), the maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator adjusts from 0.15-0.9 MPa (20-130 psi), and the operating temperature range is -5 to 70 C (non-freezing). The size-400 bowl is polycarbonate, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR series is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, square or round gauges with MPa, psi or bar scales, G (BSPP) or NPT thread options, and an optional low-pressure regulator type. Because flow is published as curves rather than a single rated figure, we confirm the datasheet and flow figures for your application on request.
| Model | GFR400C10AF2WK AirTAC Filter Regulator PT3/8, 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) |
Feeds filtered, pressure-regulated air to the tool-clamp and pallet-clamp circuits of a CNC machining centre, with the 5 um element protecting the clamping valves and the automatic drain clearing condensate on a machine that runs unattended shifts.
Sits at the drop of a cartoning or wrapping line to regulate the air feeding cylinders and grippers along the conveyor, with the check valve holding the set pressure through brief upstream dips and the psi gauge letting line technicians verify settings at a glance.
Installed on individual drop legs in an assembly plant so each workstation gets its own regulated, filtered supply, with the 5 um grade suiting air tools and sensitive actuators and the automatic drain coping with drops that see condensate accumulate between shifts.
Step through the size and port first: 200, 300, 400 and 600 cover increasing port sizes and flow capacity, and this unit sits at size 400 with a 3/8 in PT port - match it against your line's air demand. Then set the drain: automatic drain (this unit) suits points where nobody walks past regularly; manual drain suits attended stations; the differential-pressure default is the catalogue baseline. Choose 5 um filtration (this unit) when downstream equipment is sensitive to finer particles, or 40 um for general protection. Gauge scale (MPa, psi or bar - this unit reads psi), PT versus G/NPT thread, bracket and the reverse/check valve are all ordered as code positions.
One honest note on sizing: AirTAC publishes flow for this series as curves, not as a single rated number, so we do not quote a flow figure here. Ask us to confirm the datasheet and check the curve against your required flow 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, not as a single rated figure, so we do not state a flow number here. Ask us and we will confirm the datasheet and read the flow curve for the GFR400 at your operating pressure against your required demand before you order.
A (automatic drain) means the bowl discharges collected condensate on its own, with no manual draining - useful on unattended or infrequently visited installations; the alternatives in the series are manual drain (M) and the differential-pressure default. The trailing K means a reverse/check valve is fitted, which holds the downstream set pressure if the upstream supply is interrupted. With the automatic drain, the regulator adjusts from 0.15-0.9 MPa (20-130 psi).
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.