The AirTAC GFR400C10AJF2GK AirTAC Filter Regulator G3/8 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 GFR400C10AJF2GK is a size-400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration carries a G3/8 (BSPP) port, an automatic drain that expels collected condensate without manual attention, standard 40 um filtration, an embedded square gauge reading in psi, and a fitted reverse (check) valve. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulation range is 0.15-0.9 MPa (20-130 psi), and the operating temperature range is -5 to 70 C (non-freezing). The polycarbonate bowl suits this size; mounting bracket is not included (code J).
This is a genuine AirTAC part from the GFR400 series. The GFR line is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of automatic, manual or differential-pressure drains, 40 um or 5 um (W) filtration, gauge scale options, G/NPT thread variants and optional brackets. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and flow figures for your application on request.
| Model | GFR400C10AJF2GK AirTAC Filter Regulator G3/8 |
|---|---|
| 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 clean, regulated air to a carton-sealing and wrapping line: the automatic drain handles condensate between shifts without an operator visiting the drop, and the psi gauge lets the line crew set wrapper and sealer pressure at a glance.
Conditioning the shop-air feed to a CNC machining centre's pneumatic tool changer and clamps: 40 um filtration keeps water and chips out of the valves, and the check valve holds the regulated circuit if upstream supply dips.
Regulating air to sorter diverters, stops and pushers on a distribution conveyor: one body does the filtering and regulating at the 3/8 in take-off, and the automatic drain suits a pit-mounted or overhead drop that nobody drains by hand.
Size and port set the capacity envelope: this unit steps up to 3/8 in within the size-400 frame, so match it against your line's air demand - we can check the published flow curve against your requirement before you order. Drain type is a real decision: automatic drain (this unit) suits unmanned or hard-to-reach installations; manual and differential-pressure drains are the alternatives. Filtration is 40 um standard; choose 5 um (code W) where downstream equipment needs finer protection. The gauge here is the embedded square type with a psi scale; MPa and bar scales and an external round gauge are options. Thread is G (BSPP) on this code, with PT as the catalogue standard and NPT orderable - all are specifications, not delivery terms. A bracket is not included with this code (J) but is available on other variants. Because flow is published as curves and not a single rating, ask us to confirm sizing against your application 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 GFR400 series as curves, not as a single rated number, so we do not quote a rated flow, Cv or SCFM figure. Send us your application's air demand and we will confirm the flow figures from the datasheet on request before you order.
The A in the code selects the automatic drain, which expels collected condensate on its own instead of waiting for a manual blow-down - useful for unmanned or hard-to-access installations. The rest decodes as: GFR400 filter regulator, 3/8 in port, G (BSPP) thread, standard 40 um filtration, no bracket (J), embedded square gauge with psi scale (F2), and a fitted reverse/check valve (K).
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.