The AirTAC GFR400C10MLF2WT 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 AirTAC GFR400C10MLF2WT is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is built with a 3/8 in NPT port, a fine 5 um filter element (code W), a manual drain on the bowl, and the low-pressure regulator type for circuits that run below standard plant pressure. The embedded square gauge is fitted with a psi scale, a mounting bracket is included, and the maximum inlet pressure is 1.0 MPa (145 psi) with an operating temperature of -5 to 70 C (non-freezing).
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of 40 um standard or 5 um fine filtration, manual, automatic or differential-pressure drains, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet and sizing figures for your application before ordering.
| Model | GFR400C10MLF2WT 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) |
Fixture clamps and swing cylinders on a CNC cell need air that is free of water and swarf and held at a steady, reduced pressure so parts are held consistently without over-clamping. This filter regulator conditions and regulates the supply right at the fixture, with the psi gauge giving the operator a direct reading.
Carton sealers, case erectors and labelling heads run short-stroke cylinders all shift, and dirty or unregulated air shows up as erratic strokes and sticking valves. A 5 um element protects those components, and the low-pressure regulator holds the gentle, repeatable pressure these mechanisms are set up for.
Blow-off nozzles, air knives and cooling jets on filling or drying lines are tuned to a specific reduced pressure - too high wastes air and disturbs the product. This unit filters the supply and regulates it down to the setpoint, with the manual drain letting maintenance clear accumulated water on a scheduled round.
Start with the port step: this unit is the size 400 body with a 3/8 in NPT port; step up or down through the 200/300/400/600 range if your line uses a different port or needs more or less flow capacity. Because flow is published as curves and not a single rated figure, send us your application details and we will confirm sizing against the datasheet before you order. This unit carries the 5 um element (code W) instead of the 40 um standard - choose 5 um where downstream valves, cylinders or instruments need finer air. The drain here is manual, so an operator drains the bowl; if you cannot schedule drain checks, ask about the automatic or differential-pressure drain versions. The regulator is the low-pressure type; its exact adjustment range is not published in the material we hold, so confirm your setpoint with us. The fitted square gauge reads in psi (MPa and bar scales are also available), the thread is NPT here while PT is the standard and G is an order option, and a mounting bracket is included.
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 as performance curves rather than a single rated figure, so we do not quote one number. Tell us your application - port size, downstream demand and working pressure - and we will confirm the flow and sizing data from the datasheet on request before you order.
The W in the model code selects the 5 um fine filtration grade; without it, GFR units carry the 40 um standard element. Choose 5 um where the air feeds precision valves, instruments or components that tolerate less particulate; 40 um is the economical choice for general cylinder supply. Both grades are available across the GFR range, so we can quote the alternative if your application does not need the fine element.
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.