The AirTAC GFR400C10JC2WGK AirTAC Filter Regulator 3/8 in, 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 AirTAC GFR400 series is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body, so one unit handles both air preparation and pressure control. This configuration, GFR400C10JC2WGK, is the size 400 unit with a G3/8 (BSPP) port, the finer 5 um filtration element (code W) instead of the standard 40 um, a differential-pressure drain, a round pressure gauge reading in psi, a built-in reverse/check valve (code K), and no mounting bracket. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), with a maximum inlet pressure of 1.0 MPa (145 psi) and an operating temperature of -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and with choices of drain type, filtration grade (40 um standard, 5 um optional), gauge style and scale, thread form and bracket. Flow figures for this series are published as curves rather than a single rated number, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR400C10JC2WGK AirTAC Filter Regulator 3/8 in, 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) |
Feeding clean, regulated air to pneumatic clamps, tool-change cylinders and chip-clearing jets on a machining centre, where the 5 um element helps protect fine-control valves from particles and the regulator holds a steady setting through the shift.
Supplying regulated air to sealing jaws, diverters and pusher cylinders on a packaging conveyor, with the check valve holding the downstream setting if upstream supply dips and the differential-pressure drain keeping the bowl clear during continuous running.
A wall- or drop-mounted air preparation point serving assembly stations and air tools on a factory floor, where one GFR400 body does the job of a separate filter and regulator and the psi gauge lets operators verify the line setting at a glance.
Size 400 with a 3/8 in port sits in the middle of the GFR range: step up to 500/600-class ports or down to 200/300 depending on the pipe size and the air demand of the circuit - flow is published as curves, not a single rating, so let us check the sizing against your application before you order. This unit already carries the finer 5 um element (W); the standard grade is 40 um if your line does not need the finer cut. Drain is differential-pressure, which bleeds the bowl automatically as the pressure differential builds - automatic (A) and manual (M) drains are alternatives if you prefer. The fitted round gauge reads in psi; square embedded gauges and MPa/psi/bar scales are the other gauge choices. Thread here is G (BSPP); PT is the standard form and NPT is available as an order option. No bracket is included with this code (J); a bracket can be specified if you want panel or wall fixing.
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 there is no one SCFM or l/min number we can honestly quote. Send us your application details and we will confirm the relevant curve and sizing figures from the datasheet on request before you order.
The W in the code specifies the finer 5 um filtration element instead of the 40 um standard grade, which suits circuits with sensitive valves or cylinders downstream. The K specifies a built-in reverse/check valve, which helps hold the regulated downstream pressure if the upstream supply is interrupted. Both are catalogue options on the GFR family, so you can order the same size with 40 um filtration or without the check valve if your circuit does not need them.
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.