The AirTAC GFR400C10MJNT AirTAC Filter Regulator NPT 3/8 in 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 GFR400C10MJNT is a size 400 filter regulator: it removes condensed water and particulate from compressed air and regulates downstream pressure in one body. This configuration has a 3/8 in NPT port, a 40 um standard filter element, a manual drain, and a standard regulator with a setting range of 0.05-0.9 MPa (7-130 psi). Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). No gauge is fitted (code N), no mounting bracket is included (code J), and no reverse/check valve is fitted. The polycarbonate bowl suits the 200/300/400 sizes, with aluminium alloy used only at size 600.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options include automatic or differential-pressure drains, a 5 um element (code W), gauges, brackets and reverse valves. Flow for this series is published as curves rather than a single rated figure, so we confirm datasheet and flow figures on request before you order.
| Model | GFR400C10MJNT AirTAC Filter Regulator NPT 3/8 in |
|---|---|
| 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) |
Filtering and regulating the supply air to a pneumatic press or clamping fixture on a production line, where the 40 um element keeps scale and condensed water out of the downstream valve stack and the regulator holds a steady setting.
Conditioning air for diverters, stoppers and pusher cylinders on a packaging conveyor: the filter regulator protects the actuators while the manual drain lets the bowl be emptied as part of a scheduled shift-end check.
Supplying filtered, regulated air to pick-and-place modules and test rigs on a laboratory or pilot-line skid, with the 3/8 in NPT port matching common manifold plumbing and the compact single-body layout saving panel space.
Size 400 with a 3/8 in port sits in the middle of the GFR range; step up to size 600 or down to 300/200 depending on the flow your line needs - we will confirm the flow curve against your application before ordering. This unit uses a manual drain: the bowl is emptied by hand at intervals you set, which suits installations that are checked routinely; automatic or differential-pressure drains are available on other GFR400 variants if nobody will be draining the bowl regularly. The 40 um element is the standard grade; specify code W for 5 um where finer filtration is needed. No gauge is fitted here; gauges are optional on other variants with MPa, psi or bar scales. The port on this unit is NPT; PT is the standard thread for the series and G (BSPP) is also a catalogue option. A mounting bracket is available on variants without the J code.
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 in the datasheet, not as a single rated figure, so we do not quote a number here. Ask us and we will confirm the flow curve for the GFR400 and check the sizing against your application before you order.
The M in the code GFR400C10MJNT specifies a manual drain: the bowl is emptied by hand at intervals you set, which suits installations that are checked routinely. The N specifies that no gauge is supplied. If you prefer automatic or differential-pressure draining, or need a pressure gauge with an MPa, psi or bar scale, those are available as other GFR400 variants.
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.