
The AirTAC GFR Filter Regulator GFR400C10JNW 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 GFR series filters and regulates compressed air in one body. This JNW build carries the W filter grade - a 5 um element instead of the standard 40 um - so finer particulate is taken out before the air reaches sensitive downstream equipment, while the regulator holds a set pressure adjustable between 0.15 and 0.9 MPa (20-130 psi) with the differential-pressure drain this code specifies. It is the size 400 unit with a 3/8 in PT port, no gauge (N) and no mounting bracket (J); the polycarbonate bowl suits non-freezing air from -5 to 70 C at up to 1.0 MPa (145 psi) inlet.
It is a genuine AirTAC part. The G series spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and the same body is offered with 40 um or 5 um filtration, automatic or manual drains, gauges, brackets, a reverse check valve and G or NPT threads. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application.
| Model | Airtac GFR Filter Regulator GFR400C10JNW |
|---|---|
| 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 clean, regulated air to moisture analyzers and sample-handling hardware in a quality-control lab, where the 5 um element is specified over the standard 40 um grade for finer particulate control.
Regulating clamp pressure on a CNC machining center's pallet-changing fixtures, with the 5 um element protecting pilot valves and small-bore clamp circuits fed from the 3/8 in machine air drop.
Feeding I/P transducers and pilot-operated valves on a packaging skid, where fine particulate in the supply would upset the small signal-side orifices these components rely on.
Choose 5 um (W) over the standard 40 um when the equipment fed downstream is sensitive to fine particles - instruments, pilot valves, transducers, air bearings or tight-tolerance tools. Regulation stays the same: 0.15-0.9 MPa with this differential-pressure drain, or 0.05-0.9 MPa if you select the manual-drain code. The 3/8 in PT port (10) is fixed for this code; 1/2 in on the 15 code is the next step within size 400, and dropping to size 300 suits smaller lines. Gauge (none on this JN build), bracket, check valve (K) and G or NPT thread variants can all be ordered.
Flow is published as curves, not a single rating, so send us your pressure and demand points and we will confirm sizing from the datasheet 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 G-series flow as performance curves rather than a single rated figure, so we do not state one number. Give us your upstream pressure, set pressure and air consumption, and we will confirm the flow data from the datasheet on request.
The W in GFR400C10JNW swaps the standard 40 um element for a 5 um grade, which suits downstream equipment that is sensitive to fine particles such as instruments, transducers and pilot valves. Regulation range, drain, port and bowl details are otherwise identical to the plain GFR400C10JN.
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.