The AirTAC GFR400C10AJF2WTK 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 GFR400C10AJF2WTK is a filter regulator: one body that removes water and particulate from compressed air and holds the downstream pressure at your setpoint. This size 400 unit is threaded 3/8 in NPT and carries the 5 um filter element (code W) instead of the 40 um standard element. The drain is automatic, so condensate leaves the metal bowl without operator attention, and the standard regulator adjusts from 0.15 to 0.9 MPa (20-130 psi). It is fitted with the embedded square gauge reading in psi and a reverse/check valve, and is supplied without a mounting bracket. 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 series is made in sizes 200, 300, 400 and 600, with port options from 1/8 to 1 in, G (BSPP) or NPT threads in place of the PT standard, manual or differential-pressure drains as alternatives to the automatic drain fitted here, a 40 um standard element or the 5 um W option, gauge scales in MPa, psi or bar, and optional brackets. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR400C10AJF2WTK 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) |
Point-of-use conditioning for a CNC machining centre: the 5 um element cleans the air feeding the tool changer and clamping cylinders while the regulator holds a steady setpoint for consistent clamping force, and the automatic drain keeps condensate out of the supply.
Mounted at the inlet of a carton-forming and sealing machine, the unit filters and regulates the air driving the sealing cylinders and grippers, with the automatic drain clearing accumulated water between shifts without an operator opening the bowl.
On a bottling line, conditioned air to the conveyor stop gates and pusher cylinders: filtered to 5 um to protect the directional valves, regulated to the pressure the gate cylinders were designed around, and drained automatically from the metal bowl.
Step through the real choices before ordering. Size: 200, 300, 400 and 600 move you up in port and flow capacity - this unit is size 400 with a 3/8 in NPT port. Drain: automatic (fitted here, code A) clears condensate by itself; manual (M) and the differential-pressure default are the alternatives. Filter grade: 40 um is standard and suits general plant air; the 5 um W element fitted here is the choice when protecting finer downstream components. Gauge: the embedded square gauge is standard with MPa, psi or bar scales - this unit reads psi - and an external round gauge is optional. Thread: PT is the catalogue standard, with G (BSPP) and NPT as order options; this code is ordered with NPT. Bracket: code J means no bracket is supplied. On sizing, flow is published as curves rather than a single rating, so send us your application conditions and we will confirm the datasheet figures 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 GFR flow as curves, not as a single rated number, so we do not quote a figure here. Tell us your inlet pressure, setpoint and the flow your application needs, and we will confirm the sizing against the datasheet before you order.
A is the automatic drain: condensate is ejected from the metal bowl without anyone opening it, which suits unmanned cells and lines that run across shifts. The alternatives are manual drain (code M), where an operator opens the drain on a schedule, and the differential-pressure default. Choose based on how often the unit can be attended.
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.