The AirTAC GFR400C10LNWTK AirTAC Filter Regulator, NPT3/8, 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 GFR400C10LNWTK is an AirTAC GFR400 filter regulator: a 5 um filter element and a pressure regulator combined in one body, so water and particulate removal and a set downstream pressure come from a single unit. This configuration is built for a 3/8 in NPT port, carries the W-code 5 um element for finer filtration than the standard 40 um grade, and drains collected condensate by differential pressure across the element. It is the low-pressure type, intended for circuits that run below standard regulator settings, and a check valve is fitted so downstream pressure is held if the supply side drops. No gauge is supplied with this code, a mounting bracket is included, and the bowl is metal.
This is a genuine AirTAC part in the 400 size of the G-series air-treatment line, which spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch and options covering automatic, manual or differential-pressure drains, 40 um or 5 um filtration, gauge styles and scales, G (BSPP) or NPT threads, and two-unit or three-unit combinations. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Rated flow is published as curves rather than a single figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR400C10LNWTK AirTAC Filter Regulator, NPT3/8, 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) |
Feeds filtered, regulated air to clamp cylinders on a machining fixture: the 5 um element keeps water and wear particles out of the clamp circuit, while the fitted check valve holds the clamp position if the main supply dips.
Conditions the air feeding carton-sealing and wrapping heads on a packaging conveyor, combining water and particulate removal with a set pressure in one body to save panel space at the machine.
Suits a laboratory or test bench running pneumatic circuits below standard regulator settings, which is what the low-pressure type is built for, with the 5 um element helping protect sensitive instruments on the bench.
Start from the port step: this is the 400 size with a 3/8 in NPT thread, one step up from 1/4 in and one down from 1/2 in, so match the size to the line your application actually needs rather than upsizing on guesswork. The drain here is the differential-pressure type as standard; automatic (code A) and manual (code M) versions exist if you would rather not rely on a pressure differential to spill condensate. Filtration is set by the element code: 40 um standard or 5 um (W) as fitted here. Gauge is a real choice on any unit with a regulator: none (N, as here), an embedded square gauge, or an external round gauge with MPa, psi or bar scale. Thread is PT as the AirTAC standard with G (BSPP) and NPT as order options; brackets are optional on most G units and included on this one. Because rated flow is published as curves rather than a single number, send us your application and we will confirm sizing against the datasheet before you order.
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 here. Tell us your application and we will confirm the flow and other datasheet figures for this unit on request before you order.
The N in the code means no gauge is supplied with GFR400C10LNWTK. The G series offers an embedded square gauge or an external round gauge with MPa, psi or bar scales on units with a regulator, so ask us about a gauged variant if you want a pressure indication at the unit.
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.