The AirTAC GFR400C10MLJF1WT 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 GFR400C10MLJF1WT is a GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 400 unit is threaded 3/8 in NPT and carries a 5 um filter element (code W) for finer filtration than the standard 40 um grade. Moisture is emptied by hand through the manual drain on a schedule you set, the regulator is the low-pressure type, and a square pressure gauge scaled in MPa is fitted so the setting can be read directly. The bowl is metal, no mounting bracket is supplied, and no reverse (check) valve is fitted.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and can be ordered with a choice of drain type, filter grade, gauge style and scale (MPa, psi or bar), thread (PT as the standard, with G and NPT as catalogue options), bracket, and standard or low-pressure regulation. Flow is published as curves rather than a single rated figure, so ask us to confirm flow and other datasheet values for this exact model before you order.
| Model | GFR400C10MLJF1WT 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) |
On a CNC fixture line, the low-pressure regulator holds a gentle, repeatable clamp force on the air cylinders, while the 5 um element keeps water and airborne particulate out of the clamp circuit and the manual drain suits planned maintenance rounds.
At a spray booth, the unit filters and regulates the air feeding the spray guns, with the 5 um grade and manual drain letting operators bleed off collected moisture between shifts and the square MPa gauge giving a visible setpoint.
Feeding pick-and-place and sealing actuators on a packaging conveyor, the filter regulator keeps supply pressure steady after the compressor and receiver, with the fitted gauge letting line staff verify the setting at a glance.
Within GFR400, step the port size against the air demand of the circuit: this unit is 3/8 in NPT, and the family runs from 1/8 in to 1 in across sizes 200 to 600. This configuration is fixed as 5 um filtration (choose the standard 40 um grade where finer filtration is not required), a manual drain (automatic and differential-pressure drains are available if you prefer moisture removal without a routine), the low-pressure regulator type, and a square gauge scaled in MPa; an external round gauge with a psi or bar scale can be ordered instead. Thread here is NPT, with PT and G available as catalogue options, and no bracket is supplied. Note that the exact adjustment range of the low-pressure type is not published in the catalogue, so we confirm it on request.
Because AirTAC publishes flow as curves rather than a single rated figure, we do not quote a flow number for this unit. Send us your line pressure and air 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 GFR series as curves rather than a single rated figure, so we do not quote a flow number. Tell us your line pressure and air demand and we will confirm the flow data for GFR400C10MLJF1WT from the datasheet on request.
This unit uses a manual drain: moisture collected in the metal bowl is emptied by hand on a schedule you set, which suits attended machines and planned maintenance rounds. AirTAC also offers automatic and differential-pressure drains on GFR units if you would rather not rely on a routine; ask us to quote the variant.
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.