The AirTAC GFR400C10MLF2WTK AirTAC Filter Regulator NPT3/8 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 GFR400C10MLF2WTK is an AirTAC GFR400 filter regulator: one body that removes water and particulate from compressed air and then regulates the pressure delivered downstream. This configuration is built on the 400 size with NPT3/8 ports, a 5 um filter element (code W), a manual-drain polycarbonate bowl, the low-pressure regulator type, a built-in reverse/check valve, and an embedded square gauge reading in psi. A 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.
This is a genuine AirTAC part. The GFR family is offered in 200, 300, 400 and 600 sizes with ports from 1/8 to 1 inch, and with choices of drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um optional), gauge scale (MPa, psi or bar), reverse/check valve, and PT, G or NPT thread. 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 | GFR400C10MLF2WTK AirTAC Filter Regulator NPT3/8 |
|---|---|
| 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) |
Supplying filtered, regulated air to the clamp cylinders on a milling or turning fixture. The 5 um element protects the clamp valve from particulate and water, the low-pressure regulator suits sensitive clamp settings, and the fitted check valve blocks backflow at the unit.
Conditioning the air feeding sealing, labelling and pusher cylinders along a packaging conveyor. One unit filters the line air and holds the working pressure the machine was set up for, with the psi gauge giving operators a direct reading at the machine.
Regulating supply air to a blow-off nozzle or air knife used to clear chips, dust or moisture from parts on a production line. The 5 um element keeps fine particulate out of the nozzle, and the low-pressure type matches reduced blowing pressures.
Start with size and port: the 200, 300, 400 and 600 sizes step up in port and flow capacity, so match this 400 size and its 3/8 in NPT port to your line size and air demand. This code uses a manual drain, where the bowl is drained by opening the drain fitting; automatic and differential-pressure drain versions are available on other codes if the unit cannot be attended regularly. The 5 um element (code W) gives finer protection than the 40 um standard. The embedded square gauge on this code reads psi; MPa or bar scales and an external round gauge can be ordered. Thread is NPT here - PT is the standard and G (BSPP) is a catalogue option. A bracket is included. Because flow is published as curves rather than a single rated figure, send us your flow and pressure requirements 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 rather than a single rated figure, so we do not quote a number here. Send us your required flow and working pressure and we will confirm the figures from the datasheet before you order.
This code carries a manual drain: collected water is expelled by opening the drain fitting at the bottom of the bowl. Choose manual where an operator is present at regular intervals; automatic and differential-pressure drain versions are available on other codes for unattended installations. This unit also has the 5 um element (code W) instead of the 40 um standard.
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.