
The AirTAC GFR Filter Regulator GFR400C10AJF1K 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 GFR400C10AJF1K is an AirTAC G-series filter regulator: one body strips water and particulate from compressed air and holds downstream pressure at your set point. This size 400 configuration takes a 3/8 in PT port, uses the standard 40 um element, drains condensate automatically (code A) and carries the embedded square gauge with an MPa scale (code F1). The K code fits a reverse-flow (check) valve, so downstream pressure is held if the upstream supply drops. The bowl is polycarbonate.
It is a genuine AirTAC part. Maximum inlet pressure is 1.0 MPa (145 psi), the regulator adjusts from 0.15 to 0.9 MPa (20-130 psi) with this automatic drain, and the working temperature range is -5 to 70 C (non-freezing). AirTAC publishes flow for the G series as curves rather than a single rating, so we confirm datasheet and sizing figures on request.
| Model | Airtac GFR Filter Regulator GFR400C10AJF1K |
|---|---|
| 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) |
Regulates the air to diverter and gate cylinders along a conveyor line; the K-coded check valve holds the downstream setting if the upstream supply dips.
Supplies the gripper circuit of a pick-and-place robot in an injection-moulding cell; the reverse-flow valve prevents backfeed when the circuit is vented.
Sets clamping pressure on a bench pneumatic press in a small assembly shop, with automatic condensate draining to keep the cylinder dry.
Step between sizes 200, 300, 400 and 600 to match the port and air demand; this size 400 unit uses a 3/8 in PT port and can be ordered with G (BSPP) or NPT thread instead. Drain choices are differential-pressure (the default), automatic as here, or manual, and the element is 40 um standard or 5 um with the W suffix. The K suffix adds a reverse-flow (check) valve, useful where a supply dip must not dump the downstream setting; a bracket can be included or omitted (code J omits it). AirTAC publishes G-series flow as curves, not a single rated figure, so ask us to confirm sizing 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 G-series flow as curves, not as a single rated number, so we do not quote one figure here. Send us your required downstream flow and working pressure and we will confirm the correct size from the datasheet on request.
K specifies that a reverse-flow (check) valve is fitted, so air will not flow back through the unit toward the upstream side. It is useful where a downstream circuit must hold its pressure if the supply line drops or is vented.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.