The AirTAC GFR400C15LNWTK AirTAC Filter Regulator NPT1/2 5 um 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 GFR400C15LNWTK is a filter regulator: one body that removes water and particulate from compressed air and then regulates downstream pressure. This configuration is size GFR400 with 1/2 in NPT ports (PT is the standard thread; G and NPT are order options), a 5 um filter element (code W, against the 40 um standard), a differential-pressure drain, and the low-pressure regulator type. No gauge is fitted (code N), a reverse/check valve is fitted (code K), and the mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. The bowl on this size is polycarbonate.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and options across drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um with code W), gauge style and scale, thread (PT, G or NPT) and bracket. AirTAC publishes flow for this series as curves rather than a single rated figure, so ask us to confirm flow and any datasheet figure against your application before ordering.
| Model | GFR400C15LNWTK AirTAC Filter Regulator NPT1/2 5 um |
|---|---|
| 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 pneumatic clamps and hold-downs on a carton-sealing or palletising conveyor; the fitted check valve helps hold the downstream circuit if the upstream supply dips.
Point-of-use air preparation for a machining centre's pneumatic doors, tool-change actuators and blow-off jets, with 5 um filtration ahead of the machine's valves.
A paint or coating booth where spray guns and air motors run at reduced set points; the low-pressure regulator type with 5 um element delivers clean, moisture-reduced air at a controlled lower pressure.
Choose the size by port and required flow: GFR200 through GFR600 step up from 1/8 in to 1 in ports, and the flow you need at working pressure decides the step - we confirm the curve figures on request, because AirTAC publishes flow as curves, not a single rating. This model is the low-pressure regulator type; its exact adjustment range is not published in the data we hold, so confirm it with us if your set point matters. Drain: this unit uses the differential-pressure drain (automatic and manual are order options). Filtration: 5 um here (code W); the 40 um standard element suits general shop-air duty. No gauge is fitted; gauge variants with an embedded square gauge or an external round gauge, on MPa, psi or bar scales, exist in the series. Thread: NPT here, with PT as the standard and G also available. Mounting bracket included; code J orders without.
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 number, so we do not quote a figure here. Tell us your working pressure and air demand and we will confirm the flow from the datasheet on request.
Yes. Code N means no gauge is supplied with this unit, but the GFR series offers gauge variants with an embedded square gauge or an external round gauge, on MPa, psi or bar scales. Order the appropriate gauge code variant if you want a fitted gauge.
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.