The AirTAC GFR400C15AJNWTK AirTAC Filter Regulator NPT1/2 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 GFR400C15AJNWTK is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure in a single body. This size 400 unit is threaded NPT1/2, carries a 5 um filter element (code W), drains condensate automatically, and has a reverse/check valve fitted. The size 400 bowl is polycarbonate (PC). No gauge is supplied and no mounting bracket is included, so plan a panel or frame fixing and add a gauge separately if you want a local pressure readout.
This is a genuine AirTAC part. The GFR line spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and can be ordered with differential-pressure, automatic or manual drains, a 40 um or 5 um element, G or NPT threads in place of the PT standard, and with or without gauge and bracket. Max inlet pressure is 1.0 MPa (145 psi), the standard regulator on this automatic-drain version covers 0.15-0.9 MPa (20-130 psi), and the working temperature range is -5 to 70 C (non-freezing). Rated flow is published as curves rather than a single figure, so ask us to confirm the datasheet for your application.
| Model | GFR400C15AJNWTK AirTAC Filter Regulator NPT1/2 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) |
Cleaned and pressure-stabilised air for pneumatic clamps, tool-change cylinders and chip-clearing jets on a machining centre, with the 5 um element protecting spool valves from fine contamination.
Feeding the stop, divert and pusher cylinders on a sorting conveyor, where the regulator holds a steady set pressure so actuator timing stays repeatable through the shift.
Supplying carton sealers, case erectors and wrap stations on a packaging line, with the automatic drain clearing condensate from compressed-air moisture without an operator opening the bowl each day.
The decodable choices on this family are size and port (200/300/400/600, 1/8 in to 1 in) stepped against the flow your line needs; drain type (differential-pressure as standard, automatic, or manual - note the manual-drain regulator range starts lower at 0.05 MPa / 7 psi); filter grade (40 um standard, 5 um as fitted here); gauge and scale (MPa, psi or bar); thread (PT standard, G or NPT to order); and bracket. On this unit the 5 um element suits downstream equipment sensitive to finer particles, and the automatic drain keeps the PC bowl clear without daily attention. Flow is published as curves, not a single rating, so send us your flow and pressure conditions 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 this family as curves, not as a single rated figure, so we do not quote a number here. Send us your required flow and upstream/downstream pressures and we will confirm the sizing from the datasheet before you order.
The automatic drain expels collected condensate on its own, so the bowl does not need daily manual attention. The alternatives are the differential-pressure drain (the standard) and the manual drain, which you open yourself. Note that the regulator range depends on drain type: automatic and differential-pressure versions cover 0.15-0.9 MPa (20-130 psi), while manual-drain versions cover 0.05-0.9 MPa (7-130 psi).
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.