The AirTAC GFR40015JNTK AirTAC Filter Regulator NPT1/2 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 PT1/2" 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 GFR40015JNTK is an AirTAC GFR400 filter regulator: filtration (water and particulate removal) and pressure regulation combined in one body. This configuration has a 1/2 in NPT port, the standard 40 um filter element, and a differential-pressure drain that bleeds accumulated condensate away as air flows through, so no manual draining routine is needed. It regulates from 0.15 to 0.9 MPa (20-130 psi), takes a maximum inlet pressure of 1.0 MPa (145 psi), and operates from -5 to 70 C (non-freezing). The polycarbonate bowl is standard at this size, no gauge is fitted in this code, a reverse/check valve is included, and no mounting bracket is supplied.
This is a genuine AirTAC part. The GFR family runs from size 200 to 600 with ports from 1/8 to 1 in, in PT (standard), G or NPT thread, with 40 um or 5 um (W) filtration, differential-pressure, automatic or manual drains, gauge options and bracket choices. AirTAC publishes flow for these units as curves rather than one rated figure, so contact us and we will confirm the datasheet figures for your line before you order.
| Model | GFR40015JNTK AirTAC Filter Regulator NPT1/2 |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (NPT 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 | Not fitted |
| Reflux valve | Fitted (reverse flow permitted) |
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. |
|---|---|
| 15 | Port size PT1/2". 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. |
| J | Supplied without bracket. |
| N | No pressure gauge (N). |
| (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. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Feed a stamping or assembly press cylinder with cleaned, regulated air: the 40 um element stops scale and pipe debris reaching the directional valve, while the regulator holds a steady working pressure stroke after stroke.
On a packaging or bottling line, this unit conditions the air feeding diverters, clamp cylinders and stopper gates, with the differential-pressure drain clearing condensate through the shift without operator attention.
Supply quarter-turn pneumatic valve actuators on a plant air header: filtered, regulated air helps diaphragm and rack-and-pinion actuators seat consistently, and the fitted check valve blocks reverse flow in the circuit.
Size and port set capacity: this is size 400 with a 1/2 in NPT port; the family steps 200/300/400/600, so match the port to your air demand. Drain choice is real: differential-pressure (as here), automatic, or manual - and note the regulation range differs by drain type (0.15-0.9 MPa with automatic or differential drain; 0.05-0.9 MPa with manual). Filtration is 40 um standard; specify 5 um (code W) for finer protection. Threads come as PT (standard), G or NPT, and brackets are optional. Because flow is published as curves, not a single rating, ask us to confirm sizing against your application before ordering.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as curves, not a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the datasheet flow curve and sizing for this 1/2 in unit before you order.
Yes. GFR units can be ordered with an embedded square gauge or an external round gauge, with MPa, psi or bar scales. This particular code (N) is supplied without a gauge, so specify your preferred gauge and scale when ordering.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 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.