The AirTAC GFR40010JF3T AirTAC Filter Regulator 3/8 in NPT 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 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 GFR40010JF3T is a size 400 filter regulator that removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration has a 3/8 in NPT port, the standard 40 um filter element, a differential-pressure drain that bleeds condensate automatically as flow passes through, and an embedded square gauge reading in bar. The regulator is the standard type with a 0.15-0.9 MPa (20-130 psi) adjustment range, no reverse/check valve is fitted, and no mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). The polycarbonate bowl suits most general plant air; only the 600 size uses an aluminium alloy bowl.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, a choice of differential-pressure, automatic or manual drain, a 5 um element option (code W), gauge scale and thread options, and bracket variants. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application.
| Model | GFR40010JF3T AirTAC Filter Regulator 3/8 in NPT |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (NPT 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 — square, bar 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Feeds filtered, regulated air to a machining-centre clamping fixture, holding the set pressure steady through the cycle while the 40 um element keeps scale and pipe debris out of the clamp cylinder.
Sits at the drop of a packaging-machine air header, conditioning the supply to carton-sealing and case-erector cylinders; the differential-pressure drain clears condensate as the line runs.
Conditions and regulates the pilot air feeding solenoid valves and positioners on a process skid, where a stable set pressure and a local bar-scale gauge keep the valve train predictable.
Start with the port size: this unit is 3/8 in NPT in the size 400 body, one step up from 1/4 in and one below 1/2 in - pick the size whose flow curve covers your demand rather than matching pipe size alone. Choose the drain: differential-pressure (this unit) drains with flow, automatic drains even at no flow, and manual requires operator attention and widens the regulation range to 0.05-0.9 MPa. Filter grade is 40 um as standard; specify 5 um (code W) if downstream equipment needs finer filtration. The square gauge here reads in bar; MPa and psi scales are also available. Thread is NPT as ordered, with PT as the standard and G (BSPP) as an option - all are catalogue specifications, not delivery terms. A bracket variant (code J omits it) is available if you need panel or surface mounting.
Because AirTAC publishes flow only as curves and not as a single rating, we do not quote a flow number here. Send us your application demand 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 GFR400 series as curves, not as a single rated figure, so we do not quote a flow number. Send us your application demand (port size, downstream consumers and working pressure) and we will confirm the sizing against the datasheet on request before you order.
This configuration has a differential-pressure drain, which discharges collected condensate automatically when air flows through the unit; it suits lines with regular, continuous demand. If the line sits idle for long periods, choose the automatic drain (code A), which drains even at zero flow; if you want full operator control, the manual drain (code M) is available and also widens the regulation range to 0.05-0.9 MPa (7-130 psi).
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.