The AirTAC GFR400C10F2K AirTAC Filter Regulator PT3/8, 40 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 GFR400C10F2K is an AirTAC GFR-series filter regulator: water and particulate filtration plus downstream pressure regulation in a single body. This size 400 unit is threaded PT3/8 (3/8 in, PT standard), carries a 40 um standard filter element, and uses a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element is high enough, so no manual draining routine is needed. The fitted square gauge reads in psi, and a reverse/check valve is fitted to hold downstream pressure if the upstream supply is lost.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, a 5 um element option (code W), gauge scales in MPa, psi or bar, and G or NPT thread options to order. Rated flow is published as curves rather than a single figure, so ask us to confirm the datasheet figures for your application.
| Model | GFR400C10F2K AirTAC Filter Regulator PT3/8, 40 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 the clean, regulated air supply for a packaging line's cylinder-actuated sealing and carton-forming stations, with the check valve holding the set pressure if the plant supply dips.
Conditions the air feeding divertors, stops and pushers on a conveyor system, keeping water and debris out of the valves while holding a stable set pressure for consistent stroke behaviour.
Supplies filtered, regulated air to a workholding clamping circuit on a machining fixture, where the psi gauge lets the setter verify clamp pressure and the check valve guards against supply loss.
Start with the port and size step: size 400 on a 3/8 in PT thread suits lines whose air demand sits in the upper mid-range of the G-series span; step up to size 600 or down to size 300 if your flow requirement clearly outgrows or undershoots this frame. Drain choice matters in practice: the differential-pressure drain fitted here needs no operator attention, an automatic drain (code A) empties on a level or timer basis, and a manual drain (code M) suits installations that are checked regularly. The 40 um element is the standard grade; specify 5 um (code W) where finer particulate protection is required. The square gauge here reads psi; MPa and bar scales are available, and an external round gauge is an option. PT is the standard thread, with G (BSPP) and NPT as order options, and a bracket is included for mounting.
Because AirTAC publishes flow as curves rather than a single rated figure, we do not quote a flow number here. Send us your application details and we will confirm sizing against the datasheet curves 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-series flow as performance curves rather than a single rated figure, so we do not state a flow number. Tell us your line pressure, set pressure and air demand, and we will confirm the flow from the datasheet curves for this 3/8 in, size 400 unit before you order.
The differential-pressure drain fitted on this unit discharges collected condensate automatically when the pressure drop across the 40 um element rises, so it suits installations that are not checked daily. If your air is very wet or the unit runs unattended for long periods, the automatic drain (code A) is the better choice; if the unit is inspected routinely, a manual drain (code M) is simpler.
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.