
The AirTAC GFR Filter Regulator GFR400C10AJC1W 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.
GFR400C10AJC1W is an AirTAC G-series filter regulator fitted with the 5 um (W) filter element instead of the 40 um standard, for finer particulate removal ahead of sensitive downstream components. It combines filtration and regulation in one body with a drain bowl and no lubricator: 400 size, PT3/8 port, automatic drain, external round gauge scaled in MPa, and no mounting bracket (J). Maximum inlet pressure is 1.0 MPa (145 psi), the adjustment range with automatic drain is 0.15-0.9 MPa (20-130 psi), the working temperature is -5 to 70 C, and the 400-size bowl is PC (polycarbonate).
This is a genuine AirTAC part. The G-series filter regulator is offered in 200 to 600 sizes with ports from 1/8 to 1 inch, and this 5 um element is an orderable option across that range alongside 40 um, the three drain types, square or round gauges in MPa, psi or bar scales, G (BSPP) or NPT threads, and the K reverse/check valve version. Rated flow appears only as curves, not a single figure, so we confirm flow and datasheet figures on request.
| Model | Airtac GFR Filter Regulator GFR400C10AJC1W |
|---|---|
| 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) |
Supplying the solenoid valves and small actuators on an analytical or laboratory automation skid, where the 5 um element screens finer particulate before sensitive pilot valves.
Regulated air for spray nozzles and air knives in a finishing booth, with the 5 um element feeding cleaner air to the nozzle tips and the automatic drain coping with condensate.
Feeding pressure instrumentation and transducer air on a process line, where the 5 um grade is specified to keep fine particulate out of measurement devices.
The only decode difference from GFR400C10AJC1 is the element: W specifies 5 um instead of the 40 um standard, so choose this code when downstream valves, nozzles or instrumentation need finer particulate removal. From there size as usual: 400 size with a 3/8 inch PT port is the step above the 300 series, and because AirTAC publishes flow as curves rather than a single rating, ask us to confirm the 400 size against your demand. The automatic drain suits unattended lines and carries a 0.15-0.9 MPa (20-130 psi) adjustment range; manual-drain versions widen it to 0.05-0.9 MPa (7-130 psi). The external round gauge reads in MPa, with square-gauge, psi and bar variants available. Thread is PT as standard, G (BSPP) and NPT are catalogue options, and J means order a bracket separately if you panel-mount.
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 rather than a single rated figure, so we do not state a number on the page. Share your working pressure and air consumption and we will confirm sizing against the datasheet curves before you order.
The 40 um element is the standard grade; the W option specifies 5 um for finer particulate removal ahead of sensitive components such as precision valves, spray nozzles or instrumentation. Everything else in this code matches GFR400C10AJC1 - 400 size, PT3/8 port, automatic drain, external round MPa gauge, PC bowl, no bracket.
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.