The AirTAC AirTAC GFR400C10JF2WK Filter Regulator 3/8in PT 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 GFR400C10JF2WK is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and holds a steady downstream pressure in one body. This size 400 unit is threaded PT3/8, carries the finer 5 um filter element (code W), drains condensate by differential pressure, and has a built-in check valve so downstream pressure is held if the supply dips. The embedded square gauge reads in psi, the standard polycarbonate bowl suits non-freezing air from -5 to 70 C, and maximum inlet pressure is 1.0 MPa (145 psi).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and options including automatic or manual drains, the 40 um standard element, G (BSPP) or NPT threads, an external round gauge, and a mounting bracket (this configuration is ordered without one). The regulator adjusts from 0.15 to 0.9 MPa (20-130 psi) on this differential-pressure-drain version. Flow is published as curves rather than a single rating, so ask us to confirm figures from the datasheet for your application.
| Model | AirTAC GFR400C10JF2WK Filter Regulator 3/8in PT 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) |
Point-of-use filter regulator ahead of a CNC machine's air station: the 5 um element keeps water and swarf-carried particles out of solenoid valves, while the regulator holds steady pressure to clamps and the tool changer. The check valve keeps the setting if shop supply dips mid-cycle.
Feeding stoppers, pushers and carton-forming cylinders on a packaging conveyor, this unit filters the line air and regulates it to the pressure the cylinder stroke was set up for. The built-in check valve holds downstream pressure during brief upstream drops so product handling stays consistent.
At the drop to a spray gun in a paint booth, the 5 um element takes water and fine particles out of the air before they reach the finish, and the regulator holds the atomising pressure the gun was set to. The polycarbonate bowl with differential-pressure drain handles condensate collected during a shift.
Size and port set the air capacity: step up from 300 to 400 (or on to 600) when the line needs more flow, and match the port to your piping - here PT3/8, with G (BSPP) or NPT available as order options. Choose the drain: differential-pressure (this unit), automatic for unattended condensate removal, or manual where someone blows the bowl down regularly. Pick the element: 40 um standard or 5 um (this unit, code W) for finer protection of valves and cylinders. Gauge scale (MPa, psi or bar) is chosen at ordering, and a mounting bracket can be added if this no-bracket configuration does not suit your panel. Because flow is published as curves, not a single rating, send us your flow and pressure requirements and we will confirm sizing from 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 this family as curves, not as a single rated number, so we do not quote a figure here. Tell us your working pressure and the air consumption of the equipment downstream, and we will confirm the sizing against the datasheet curves for you before you order.
The W in the code selects the 5 um element instead of the 40 um standard, giving finer protection for valves, cylinders and tools. The K adds a reverse (check) valve, which holds pressure downstream of the unit if the upstream supply falls - useful where a momentary drop would upset the machine. This configuration drains by differential pressure, and automatic or manual drains can be ordered instead.
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.