The AirTAC GFR400C10JNWT AirTAC Filter Regulator 3/8 in NPT 5 um 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 GFR400C10JNWT is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is threaded NPT 3/8 in, carries the fine 5 um filtration grade (the 40 um standard element is the alternative code), drains condensate by differential-pressure action, and is supplied without a gauge or mounting bracket. Max inlet pressure is 1.0 MPa (145 psi) and the standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi). Operating temperature is -5 to 70 C, non-freezing. The polycarbonate bowl suits the 200/300/400 sizes (size 600 uses aluminium alloy).
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, a choice of drain types, 40 um or 5 um filtration, gauge and thread options, and bracket choices. Flow is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR400C10JNWT AirTAC Filter Regulator 3/8 in NPT 5 um |
|---|---|
| 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) |
Mounted at the point of use on a spray booth air drop, the unit dries and cleans the supply with the 5 um element and holds a steady set pressure to the spray guns, helping finish quality stay consistent across a shift.
On a machining centre's fixture clamping circuit, the filter regulator conditions the air and sets the clamping pressure the tooling was designed for, with the differential-pressure drain clearing collected condensate during continuous running.
Feeding the pick-and-place and sealing cylinders on a packaging conveyor, this unit protects the actuators from water and grit while keeping their supply pressure at the set point the line was commissioned to.
Choose the size 400 / 3/8 in step when your line port is 3/8 in and your flow demand sits in the upper mid-range of the G-series; larger sizes give larger ports and more flow. This unit ships configured with the 5 um element - step down to the 40 um standard grade if your application does not need fine filtration, since the finer element costs more differential pressure. Drain is differential-pressure (the default); automatic (A) and manual (M) drains are orderable alternatives. A gauge is not fitted on this code (N), but gauge options with MPa, psi or bar scales can be ordered; the thread is NPT here, with G(BSPP) and PT available as catalogue options, and a mounting bracket can be added if this J-coded, bracket-less unit needs one.
Flow for this series is published as curves, not a single rated figure, so please ask us to confirm sizing against your application before ordering.
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 one number. Tell us your inlet pressure, set pressure and expected air demand and we will confirm the sizing from the datasheet on request before you order.
In the code GFR400C10JNWT, the W selects the 5 um filtration grade instead of the 40 um standard element, and N means no gauge is fitted. If you would rather have the coarser 40 um element, or need a local pressure readout, we can quote the equivalent codes with the 40 um grade and a gauge in MPa, psi or bar scale.
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.