
The AirTAC GFR Filter Regulator GFR400C10JN 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 combines filtration and pressure regulation in a single body: a 40 um element removes water and particulate from the compressed air, and the regulator holds a steady downstream pressure adjustable between 0.15 and 0.9 MPa (20-130 psi) with the differential-pressure drain this code specifies. This GFR400C10JN 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 compressed 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, plus options for automatic or manual drains, a 5 um element (W), gauges, brackets, a reverse check valve (K) 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 GFR400C10JN |
|---|---|
| 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 clamp cylinders on an automotive spot-welding fixture: the 40 um element strips water and scale from the shop air line while the regulator holds clamp pressure steady through shift-long cycling.
Conditioning plant air ahead of the torch supply on a CNC plasma cutting table, where the size 400 frame and 3/8 in PT port suit the main air drop serving the cutting bench.
Supplying diverter gates and pusher cylinders on a bottling conveyor, keeping actuator pressure constant as filler stations upstream start and stop through the production run.
Size 400 is the second-largest G-series frame; this code fixes a 3/8 in port (10), and stepping to the 15 code within size 400 gives a 1/2 in port if your headers run larger piping. Choose the drain to match maintenance practice: differential-pressure (this model) responds to a pressure signal, automatic (A) drains on its own, and manual (M) needs an operator but widens the regulating range to 0.05-0.9 MPa. This JN build carries no gauge and no bracket; gauge, bracket, 5 um (W) and check-valve (K) variants exist, and G (BSPP) or NPT threads can be ordered in place of the PT standard.
Because AirTAC publishes flow as performance curves, not a single rating, send us your supply pressure, set pressure and air demand and we will confirm sizing against 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 quote one number here. Send us your upstream pressure, set pressure and air consumption, and we will confirm the flow data from the datasheet on request.
Yes. N simply means no gauge on this unit. GFR regulators are available with an embedded square gauge or an external round gauge, in MPa, psi or bar scales. Order the GFR400C10 code with the gauge position filled in and the same port, drain and bracket settings.
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.