The AirTAC GFR40010C2WT AirTAC Filter Regulator NPT3/8, 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 GFR40010C2WT is an AirTAC GFR400 filter regulator: one body that removes water and particulate from compressed air and sets a stable downstream working pressure. This configuration is sized for 3/8 in NPT ports, carries a 5 um filter element (the finer of the two catalogue grades), drains condensate by differential pressure, and is fitted with an external round gauge reading in psi. 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 the polycarbonate bowl suits operating temperatures from -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR line is available in sizes 200, 300, 400 and 600 with port options from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, square or round gauges in MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR40010C2WT AirTAC Filter Regulator NPT3/8, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (NPT 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. |
| T | NPT 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 a filtered, regulated air drop to a CNC machining centre's pneumatic actuators and tool-change circuits, where the 5 um element helps keep moisture and chips-borne debris out of precision valves.
Supplying set-pressure air to conveyor stopper and pusher cylinders on a packaging line, with the round psi gauge letting operators check the setting at a glance during changeovers.
Conditioning the air supply to a laboratory automation skid's sample-handling pneumatics, where fine 5 um filtration and a stable regulated pressure protect sensitive instrument valves.
Choose the size and port step against the air demand of the circuit: this unit is size 400 with 3/8 in NPT ports, one step up from size 300, and larger sizes carry higher flow. Because flow is published as curves rather than a single rated figure, send us your application details and we will confirm sizing against the datasheet before you order. This unit already specifies the 5 um element (code W) instead of the 40 um standard, so pick the finer grade only where downstream equipment needs it. Drain is differential-pressure here; automatic and manual drains are available in the family if your maintenance routine suits them better. The fitted round gauge reads in psi; embedded square gauges and MPa or bar scales are the alternatives. NPT is ordered as the thread option on this code, with PT as the catalogue standard and G (BSPP) also available. A mounting bracket is included; a reverse/check valve is not fitted and can be specified on related codes.
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 curves, not as a single rated number, so we do not quote a figure here. Tell us your application's air demand and operating pressure and we will confirm the flow from the datasheet on request before you order.
W is the filter-grade code: this unit carries the 5 um element instead of the 40 um standard, for finer removal of particulate and water carryover. The C2 in the code means an external round gauge reading in psi is fitted; the embedded square gauge in MPa, psi or bar scales is the alternative in the family.
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.