The AirTAC GFR40010JC2WGK AirTAC Filter Regulator G3/8, 5 um is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT3/8" 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 combines water and particulate filtration with pressure regulation in a single body, so one unit both cleans the compressed air and holds your downstream pressure steady. This configuration, the GFR40010JC2WGK, is the size 400 unit with 3/8 inch ports in G (BSPP) thread, fitted with a round psi-scale pressure gauge, a reverse/check valve that holds downstream pressure when the upstream supply is lost, a 5 um filter element (the finer of the two catalogue grades), and a differential-pressure drain that bleeds accumulated condensate automatically as the pressure differential across the element rises. No mounting bracket is included with this code.
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with a choice of port sizes, PT, G or NPT threads, 40 um or 5 um filtration, manual, automatic or differential-pressure drains, and gauge or no-gauge builds, so a matching unit can be specified for most general industrial air lines. Rated flow for this series is published as curves rather than a single figure; ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR40010JC2WGK AirTAC Filter Regulator G3/8, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (G (BSPP) thread) |
| Filtering grade | 5 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 — round, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. |
|---|---|
| 10 | Port size PT3/8". 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Mounted at the drop to a machining centre's pneumatic circuit, the unit removes water and fine particles before air reaches tool-change cylinders and clamps, while the regulator holds a steady set pressure and the check valve keeps the circuit charged during a supply dip.
Installed ahead of the valves and cylinders on a carton-forming and sealing conveyor, it delivers clean, regulated air to the pick-and-place and sealing actuators, with the 5 um element protecting tight-tolerance valve seats from particulate carryover.
Fitted at the point of use on a factory ring main feeding assembly-station air tools and fixtures, it conditions the supply locally, and the psi-scale gauge lets operators verify the set pressure at a glance without walking back to the compressor room.
Start with the port and size step: size 400 with 3/8 inch ports sits in the middle of the GFR range, so step up to size 600 or down to 300/200 depending on the air demand of the line - because flow is published only as curves, ask us to check the sizing against your application before ordering. This code carries the 5 um element (code W); the standard grade is 40 um, so choose 5 um where downstream equipment needs finer particle removal. The drain here is differential-pressure, which discharges condensate automatically as the element loads; a manual-drain build would instead be bled by hand, and an automatic drain on a different code dumps on a timer-free basis. The round gauge fitted to this unit reads in psi; embedded square gauges and MPa, psi or bar scales are the other catalogue choices. Thread is G (BSPP) on this code, with PT as the standard thread and NPT available as an order option, and the J code means no mounting bracket is supplied - order a bracketed code if you need panel or wall fixing. A reverse/check valve (code K) is fitted, holding the regulated downstream pressure if the supply drops.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as performance curves rather than a single rated figure, so there is no one number we can quote for this unit. Tell us your line pressure, set pressure and air demand, and we will confirm the datasheet curve figures for your application on request before you order.
The W in the code GFR40010JC2WGK selects the 5 um filter grade instead of the 40 um standard, for finer water and particle removal, and the K selects a built-in reverse/check valve that holds the regulated downstream pressure if the upstream supply is interrupted. The round gauge on this build reads in psi, and the J code means no mounting bracket is included.
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.