
The AirTAC GFR Filter Regulator GFR400C10JNWK 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 JNWK build combines the finest decodable options of the family: the W 5 um filter element instead of the standard 40 um, and the K reverse (check) valve that traps downstream pressure when the supply side vents or the compressor unloads. 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, offered with 40 um or 5 um elements, automatic or manual drains, gauges, brackets, check valves and G (BSPP) or NPT threads as well as PT. 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 GFR400C10JNWK |
|---|---|
| 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 pneumatic torque tools and nutrunner balances at an assembly cell, with the 5 um element protecting the tool's valve train and the check valve holding line pressure when the cell is vented between jobs.
Holding regulated pressure on a pneumatic leak-test station while the supply is switched off between parts; the check valve prevents backflow through the unit and the 5 um element keeps fine debris away from test couplings and reference gauges.
Feeding vacuum and gripper circuits on a pick-and-place robot handling PCB assemblies, where fine filtration guards the small pilot valves and the trapped downstream pressure keeps parts held during supply dips.
Specify this JNWK build when you need both a finer element and a trapped downstream circuit: the 5 um grade protects sensitive components, and the check valve keeps your set pressure on the cylinders or tools while the supply side drops. Regulation is 0.15-0.9 MPa with this differential-pressure drain, or 0.05-0.9 MPa on the manual-drain code. The 3/8 in PT port (10) is fixed here; 1/2 in (15) is the step up within size 400, and smaller lines drop to size 300. This build has no gauge and no bracket; gauge, bracket and thread variants in G (BSPP) or NPT can be ordered in place of the PT standard.
AirTAC publishes flow as curves, not one rated number, so share 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.
There is no single rated-flow figure to quote: AirTAC publishes G-series performance as curves. Send us your supply pressure, set pressure and air consumption, and we will confirm the flow data from the datasheet on request.
Yes. PT is the standard thread on this code, and G (BSPP) or NPT (T) versions are catalogue options ordered under the same size, port, drain, filter grade and check-valve settings. Specify the thread when you enquire and we will confirm the exact ordering code.
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.