The AirTAC GFR40010C2W AirTAC Filter Regulator 3/8 in PT 5 um psi gauge 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 GFR40010C2W is a size 400 filter regulator: water and particulate filtration plus pressure regulation combined in one body. This configuration is built with a 3/8 in PT port, a 5 um filter element (the finer of the two published grades, against the 40 um standard), a differential-pressure drain that bleeds collected condensate automatically when the pressure differential rises, and a round pressure gauge reading in psi. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing). The polycarbonate bowl is protected by a mounting bracket, which is included.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600, with port sizes from 1/8 in to 1 in, G (BSPP) and NPT thread options to order, manual and automatic drain variants, both filter grades, and gauge choices with MPa, psi or bar scales. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR40010C2W AirTAC Filter Regulator 3/8 in PT 5 um psi gauge |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (PT 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. |
| (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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Feeding clean, regulated air to the tool-change clamps and pneumatic actuators on a CNC machining centre, where the 5 um element protects fine control valves from particles and carryover water.
Conditioning the supply to filler and capper actuator banks on a beverage bottling line, holding a steady set pressure to the cylinders while the differential-pressure drain handles condensate through the shift.
Filtering and regulating the air feed to spray guns and air-powered sanders in a body shop booth, where the 5 um grade and a stable regulated pressure support consistent finish work.
Start with the port step: this unit is the size 400 body on a 3/8 in PT connection; step up to size 600 or down to size 300 if your line sits at a different port size, since flow capacity rises with size. Choose the drain to match the installation: differential-pressure (this unit) drains itself with the flow, automatic (code A) drains on shut-off, and manual (code M) needs a routine bleed - the manual variant also widens the regulation range down to 0.05 MPa. Pick the filter grade for the downstream equipment: 40 um is the standard element, 5 um (this unit, code W) suits finer pneumatic components. Gauge scale (MPa, psi or bar), round versus embedded square gauge, PT versus G/NPT thread, and the bracket are all real order choices - this unit ships with a round psi gauge and a bracket fitted.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated number, so we cannot quote you a rated flow figure here. Send us your application details and we will confirm the sizing against the datasheet curves 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 family as curves rather than a single rated figure, so we do not quote a rated flow number for this unit. Tell us your application - port size, downstream demand and set pressure - and we will confirm the relevant datasheet figures on request before you order.
The W in the code selects the finer 5 um filter grade against the 40 um standard, which suits finer pneumatic components such as precision valves. The drain is the differential-pressure type: it discharges collected condensate automatically as the pressure differential across the bowl rises, with no manual bleeding needed during operation.
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.