The AirTAC GFR400C10LJF1WTK AirTAC Filter Regulator 3/8 in NPT 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 GFR400C10LJF1WTK is an AirTAC GFR400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 400 unit is built for a 3/8 in NPT port and carries the 5 um filter element (code W) in place of the standard 40 um, a differential-pressure drain, and a polycarbonate (PC) bowl. It is the low-pressure regulator type (code L), and the embedded square gauge fitted here reads in MPa. A reverse/check valve (K) is fitted, no mounting bracket is included (code J), 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. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options including automatic, manual or differential-pressure drains, 40 um or 5 um filtration, embedded square or optional external round gauges with MPa, psi or bar scales, PT, G or NPT threads, and brackets. Flow for this model is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR400C10LJF1WTK AirTAC Filter Regulator 3/8 in NPT |
|---|---|
| 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) |
Filter and set a reduced supply pressure to the pick-and-place cylinders and sealing heads on a packaging line, with the 5 um element helping keep moisture and fine particulate out of the directional valves downstream.
Feed filtered, regulated air to the tool-changer and clamping circuits on a CNC machining centre, where clean, stable supply pressure keeps the actuation valves working as designed.
Regulate air to the stoppers and diverter gates along a sorting conveyor, with the fitted reverse/check valve blocking backflow through the unit so a downstream pressure drop does not upset the setting.
Every choice in this model is decodable from the code. Step the size (200/300/400/600) and port against the air demand of your line - here size 400 with a 3/8 in NPT connection. Choose the drain: differential-pressure (standard, fitted here), automatic (A) or manual (M). Choose the element: 40 um standard or 5 um (W, this model) where finer filtration is needed. Gauges: the embedded square gauge is fitted here with an MPa scale; an external round gauge is optional, in MPa, psi or bar. Thread: PT is the standard; G (BSPP) and NPT (this model) are order options. Brackets are optional and no bracket is included on this unit (J). Flow is published as curves, not a single rating, so send us your application details 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 operating pressure and the air demand of your equipment, and we will confirm the sizing from the datasheet on request before you order.
The L in the code marks the low-pressure regulator variant rather than the standard type. Its exact regulation range is not published in the material we hold, so we do not state a figure - ask us to confirm the range from the AirTAC datasheet. Maximum inlet pressure is 1.0 MPa (145 psi) and the temperature range is -5 to 70 C.
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.