The AirTAC GFR40010C2WG 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 GFR40010C2WG is a GFR-series filter regulator: it removes water and particulate from compressed air and sets downstream pressure in a single 400-size body. This configuration carries a 3/8 inch G (BSPP) port, a 5 um filter element (the finer of the two catalogue grades), a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element is high enough, and a round pressure gauge with a psi scale. The standard regulator covers a setting range of 0.15-0.9 MPa (20-130 psi), with a maximum inlet pressure of 1.0 MPa (145 psi). The polycarbonate bowl suits non-freezing compressed-air duty from -5 to 70 C, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family is published in 200, 300, 400 and 600 sizes with ports from 1/8 to 1 inch, a choice of 40 um or 5 um filtration, differential-pressure, automatic or manual drains, square (embedded) or round (external) gauges in MPa, psi or bar scales, and PT, G or NPT threads. Flow for this series 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 | GFR40010C2WG 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 | 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. |
|---|---|
| 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. |
| (blank) | Mounting bracket included. |
| (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. |
| (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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Feeds filtered, pressure-set air to tool-clamp and pallet-actuation circuits on a machining centre, where the 5 um element protects tight-tolerance valves from fine swarf-borne particulate and condensate.
Sits at the drop feeding carton-closing and case-erector cylinders on a packaging line, holding a steady regulated pressure so sealing and pushing strokes stay repeatable through the shift.
Conditions the air supply to pneumatic quarter-turn valve actuators on a process skid, combining water and particle removal with a locked-in setting range so the actuator stroking pressure does not drift.
Size and port set the flow capacity: the 400 size with a 3/8 inch port sits in the middle of the GFR range, one step above the 300 series - step up if your line may grow, down if the 3/8 port is larger than your piping needs. The 5 um element (code W) is the right choice where downstream valves, cylinders or instruments are sensitive to fine particulate; the 40 um standard element suits general shop-air protection. The differential-pressure drain is the zero-maintenance default; choose automatic (code A) for unattended drains or manual (code M) where you want positive control. The round psi gauge (code C2) suits US-standard reading; square embedded gauges and MPa or bar scales are alternatives. This unit has the G (BSPP) thread - PT is the catalogue standard and NPT is available to order, so match the thread to your fittings. A bracket is included; GR-family panel mounting does not apply here. Because flow is published as curves rather than a single rating, 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 performance curves rather than a single rated figure, so we do not quote a l/min, m3/h or SCFM number. Send us your application - line pressure, downstream consumption and acceptable pressure drop - and we will confirm the sizing against the datasheet on request before you order.
The W in the code GFR40010C2WG selects the 5 um element, the finer of the two catalogue grades - it is the choice when downstream valves, cylinders or instruments need protection from fine particulate. The standard grade is 40 um; if your duty is general shop-air conditioning, ask us for the equivalent 40 um configuration of the same GFR400-10G unit.
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.