The AirTAC GFR400C10LF1WT AirTAC Filter Regulator NPT3/8 5um 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 GFR400C10LF1WT is an AirTAC GFR400 filter regulator: water and particulate filtration plus pressure regulation combined in one body. It is fitted with a 3/8 in NPT port, a 5 um filter element, a differential-pressure drain that bleeds condensate as flow passes through, and an embedded square gauge scaled in MPa. It is the low-pressure type, intended for circuits where the regulated pressure sits below the standard regulator range; the exact adjustment window for this variant is confirmed on request.
This is a genuine AirTAC part. The GFR series spans sizes 200 to 600 with ports from 1/8 to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um standard or 5 um (W) filtration, gauge options and PT, G or NPT threads. Rated inlet pressure is 1.0 MPa (145 psi) and operating temperature is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so we confirm datasheet figures for your application on request.
| Model | GFR400C10LF1WT AirTAC Filter Regulator NPT3/8 5um |
|---|---|
| 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) |
Finishing lines feeding spray guns need clean, finely filtered air held at a steady low setting. This unit strips water and 5 um particulate and holds the gun supply pressure steady while the booth runs, with the MPa gauge giving the operator a direct reading at the panel.
Packaging machines run banks of solenoid valves and small cylinders that foul quickly on dirty air. A filter regulator at the machine inlet conditions the supply in one body, and the differential-pressure drain keeps condensate moving out without an operator stopping the line.
Test benches and lab rigs need a regulated, filtered air feed for instruments and pneumatic fixtures. The low-pressure type and 5 um element suit sensitive downstream gear, and the included bracket lets the unit mount neatly at the bench regulator panel.
Size 400 with a 3/8 in NPT port suits lines plumbed at that thread; step up or down a size if your flow demand or piping differs - we will check the published flow curves against your demand before you order. This unit carries the 5 um (W) element rather than the 40 um standard, so choose it where downstream valves and instruments need finer particulate removal. The differential-pressure drain is the default and needs no manual attention during operation; if your usage is intermittent, ask about automatic or manual drain variants. The square MPa gauge is fitted as standard and an external round gauge with MPa, psi or bar scale is available; PT is the standard thread and G or NPT are ordered as options, and the mounting bracket is included.
Sizing honesty: AirTAC publishes flow for this series as curves, not as a single rated figure, so we do not quote a number here. Send us your flow and pressure conditions and we will confirm suitability from the datasheet 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 performance curves rather than a single rated figure, so we do not state a number here. Send us your required flow and working pressure and we will confirm sizing against the datasheet curves for this 3/8 in, size-400 unit before you order.
The W code in GFR400C10LF1WT selects the 5 um filtration grade, one step finer than the 40 um standard element. Choose it when downstream valves, cylinders or instruments need finer particulate removal; the 40 um grade remains available on the same family if coarser, higher-tolerance circuits are all you need.
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.