The AirTAC GFR400C10LJF2WTK 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 AirTAC GFR400C10LJF2WTK is a size 400 filter regulator: water and particulate removal plus pressure regulation in a single body. This configuration carries a 5 um filter element (the finer W grade, versus the standard 40 um), a differential-pressure drain that bleeds accumulated condensate automatically whenever the pressure differential across the element is high enough, and a low-pressure regulator type for circuits that run below standard working pressures. The fitted embedded square gauge reads in psi, a reverse/check valve is fitted, and the 3/8 in NPT port suits mid-size supply lines. At size 400 the bowl is polycarbonate, so the unit should be used where the medium cannot attack PC and within the non-freezing range of -5 to 70 C.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um filtration, square or round gauges in MPa, psi or bar scales, and PT, G or NPT threads. Rated flow for this model is published as a curve rather than a single figure, so ask us and we will confirm the datasheet figures for your application.
| Model | GFR400C10LJF2WTK 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) |
On a carton-sealing or case-packing line where clamp cylinders are specified to run below standard shop pressure, this low-pressure type filter regulator sets and holds the reduced circuit pressure while the 5 um element keeps seal and valve wear down.
Feeding grippers and vacuum generators on a robot cell, the unit filters incoming compressed air to 5 um, regulates it to the pressure the EOAT was designed for, and the fitted reverse/check valve helps hold the circuit if supply pressure dips.
For bench-top test rigs and analytical instruments that need clean, steady low-pressure air, the 5 um element protects sensitive components and the psi-scale square gauge gives operators a direct local pressure readout.
Step up or down through the GFR sizes (200/300/400/600) so the port and body match the flow your line needs - the 400 size with a 3/8 in port sits in the middle of the range. Choose the drain to suit maintenance access: differential-pressure (as fitted here) needs no daily attention, automatic drains continuously, and manual drain suits attended installations. Pick the element grade for the downstream equipment: 40 um standard protection, or the 5 um W grade fitted here for finer pre-filtration. Select the gauge scale (MPa, psi or bar) and square or round style, and confirm the thread: PT is the catalogue standard, with G (BSPP) and NPT (as on this model) as order options. Brackets are optional on GFR units, and this code specifies no bracket. Because rated flow is published only as curves, not a single number, send us your flow and pressure requirements 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 GFR400 series as performance curves rather than a single rated figure, so we do not quote one number out of context. Tell us your working pressure and required flow and we will confirm the datasheet curve figures for this exact model on request before you order.
W is the filter-grade code: this unit carries the 5 um element instead of the 40 um standard grade. The finer element removes smaller particulate and gives better protection to precision valves and cylinders, at the cost of a higher pressure differential across the element. Drain type, gauge scale and thread (NPT here, with PT standard and G as an option) are also selectable when you order.
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.