The AirTAC GFR400C10F3WT 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 See datasheet 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 GFR400C10F3WT is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 400 unit comes with a 3/8 in NPT port, the optional 5 um filter element (code W), a differential-pressure drain, and an embedded square gauge scaled in bar. 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 unit operates from -5 to 70 C (non-freezing). The 400 size uses a polycarbonate bowl, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options across the range include manual or automatic drains, the 40 um standard element, alternative gauge scales (MPa, psi, bar), G (BSPP) or NPT threads in place of the PT standard, and a reverse/check valve. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR400C10F3WT AirTAC Filter Regulator 3/8 in NPT |
|---|---|
| Series | GFR400 filter regulator |
| Port size | See datasheet (PT 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 — factory standard, Factory standard 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. |
|---|---|
| C1 | Port size See datasheet. 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). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
Feeding fixture clamps and tool-change cylinders on a machining centre: the 5 um element keeps scale and pipe debris out of the clamping valves while the regulator holds a steady set pressure for repeatable clamping force.
Supplying stopper cylinders, diverters and bag-fold actuators on a packaging conveyor: filtered, regulated air at one set point keeps stroke timing consistent through the shift, while the differential-pressure drain clears collected condensate automatically.
Feeding pick-and-place grippers and small pilot valves on laboratory or electronics assembly automation, where the 5 um grade and a stable bar-scaled setting help protect sensitive pneumatic components.
Choose the size step (200/300/400/600) and port against the flow your line needs; larger sizes carry larger ports and more flow, and we confirm exact figures from the datasheet curves on request. Drain choice on filter-regulators is differential-pressure (the default, fitted here), automatic (A) or manual (M); filter grade is 40 um standard or 5 um with W (fitted here). Gauges are an embedded square type or an optional external round type, with MPa, psi or bar scales - this unit is square, bar. Thread is PT as standard, with G (BSPP) and NPT (this unit) as order options, and a bracket is included unless J is specified. Before ordering, send us your flow and pressure requirements so we can verify sizing against the catalogue curves.
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 G-series flow as curves rather than a single rated figure, so we do not quote a l/min or SCFM number here. Send us your application details and we will confirm the flow data from the datasheet for this 3/8 in size before you order.
The W in the code specifies the optional 5 um element; the GFR standard grade is 40 um. Choose 5 um where downstream valves and actuators need finer protection, and 40 um for general plant air - both are orderable in this size, and we can help confirm the right grade for your line.
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.