
The AirTAC GFR Filter Regulator GFR400C15JNWK 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.
GFR400C15JNWK is an AirTAC GFR-series filter regulator: water and particulate removal plus downstream pressure regulation in a single body. Compressed air passes a 5 um element, the finer of the two grades offered in the series, and the regulator holds a set pressure anywhere in the 0.15-0.9 MPa (20-130 psi) range that applies to the differential-pressure drain fitted here. Condensate collects in the polycarbonate bowl and is purged by the differential-pressure drain. The port is PT1/2, the standard thread for this series, with a maximum inlet pressure of 1.0 MPa (145 psi) and an operating temperature of -5 to 70 C (non-freezing). A reverse (check) valve is fitted, and this configuration carries no pressure gauge (code N) and no mounting bracket (code J).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, gauge options and G or NPT thread variants. AirTAC publishes flow for this series as curves rather than a single rating, so ask us to confirm sizing against your application - we can supply the datasheet on request.
| Model | Airtac GFR Filter Regulator GFR400C15JNWK |
|---|---|
| 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) |
Filtered, regulated air for chip-clearing nozzles and seal-air circuits on a machining centre, with the 5 um element helping keep fine jets clear and the check valve blocking backflow toward the supply.
Steady point-of-use pressure for the small pilot valves and actuators on an automated analyser or sample-handling station, where fine particulate must stay out of narrow-bore piping.
Regulated air to the vacuum-cup and sealing-jaw circuits of a carton or blister wrapper, where the filter-regulator keeps water and debris away from the valve bank.
Size 400 with a 1/2 in PT port sits in the upper-middle of the GFR range (sizes 200-600, ports 1/8-1 in); step up or down a size if your line demand calls for it, and we will check the published flow curve against your application before you order. This configuration carries a differential-pressure drain, a 5 um element, a check valve, and no gauge or bracket; gauged and bracketed variants exist in the coded series, and G or NPT threads are catalogue options. Remember the regulation span for the differential-pressure drain is 0.15-0.9 MPa (20-130 psi).
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 flow for the GFR series as curves rather than a single rated figure, so we do not quote a number on the page. Send us your inlet pressure, set pressure and expected air demand, and we will confirm sizing from the datasheet on request.
The differential-pressure drain purges the bowl automatically when the pressure drop across the element indicates a build-up of condensate. An automatic drain (code A) dumps condensate continuously without that trigger, and a manual drain (code M) needs to be opened by hand. Pick based on how wet your supply air is and how often someone can attend the unit.
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.