The AirTAC GFR400C15MLNWTK 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 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 GFR400C15MLNWTK is a filter regulator: one body that removes water and particulate from compressed air and then regulates the downstream pressure. This size 400 unit carries a 1/2 in NPT port, a 5 um filter element (code W), a manual drain, and the low-pressure regulator type. A reverse/check valve is fitted, no pressure gauge is supplied, and a 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.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in and PT, G and NPT thread options. On size 400 the bowl is polycarbonate. Flow for the series is published as curves rather than a single rated figure, so ask us to confirm figures from the datasheet for your application.
| Model | GFR400C15MLNWTK AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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) |
Point-of-use air preparation for the sealing jaws and clamping cylinders on a carton-sealing line: the 5 um element screens water and particles ahead of the valves, the low-pressure regulator sets the jaw pressure, and the manual drain suits a fixed end-of-shift draining routine.
Filtered, regulated supply to a gripper manifold in an automated cell. The fitted check valve blocks reverse flow back through the unit when the upstream supply is isolated, and the included bracket lets the unit mount beside the cell controller.
Clean, low-pressure regulated air to a benchtop analyser or environmental chamber. The 5 um grade suits instruments sensitive to airborne moisture and particulate, and the 1/2 in NPT port ties into a dedicated lab air line.
The real choices in this family are the size and port (200/300/400/600, 1/8 to 1 in) matched to the flow your line needs; the drain (differential-pressure as standard, automatic, or manual as fitted here); the filter element (40 um standard, 5 um with code W, as on this unit); the gauge (embedded square or external round, with MPa, psi or bar scales, or none as here); the thread (PT standard, G and NPT as order options); and the bracket. For this exact code the regulator is the low-pressure type and its setting range is not published in the catalogue, so confirm it with us. Because flow is published as curves rather than a single rated figure, ask us to check sizing against your application before ordering.
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, not as a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow figures from the datasheet on request.
The N in the code means no gauge is fitted. The GFR family can be ordered with an embedded square gauge or an external round gauge, with MPa, psi or bar scales - specify your choice 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.