The AirTAC GFR400-15JF3TK AirTAC Filter Regulator, NPT 1/2 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 PT1/2" 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 GFR400-15JF3TK is an AirTAC GFR400 filter regulator: filtration and pressure regulation combined in a single body. It removes water and particulate from compressed air at the 40 um standard grade, then regulates downstream pressure within the 0.15-0.9 MPa (20-130 psi) adjustment range. This configuration is built with a 1/2 in NPT port, a differential-pressure drain that bleeds collected condensate automatically as flow passes through, an embedded square gauge scaled in bar, and a reverse/check valve fitted to hold downstream pressure when the supply is lost. The bowl on this size 400 unit is polycarbonate (PC). No mounting bracket is supplied with this code.
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 is available with manual or automatic drains, a 5 um filter element (code W), low-pressure regulator type, MPa/psi/bar gauge scales, G or NPT thread options and bracket choices. Rated flow for this series is published as curves rather than a single figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR400-15JF3TK AirTAC Filter Regulator, NPT 1/2 in |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (NPT 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 — square, bar scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. |
|---|---|
| 15 | Port size PT1/2". 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
A mechanical or pneumatic press station drawing clean, regulated air at a steady setpoint. The filter stage keeps wear particles and water out of the cylinder valves while the regulator holds the pressing force consistent from stroke to stroke.
Carton diverters, clamp cylinders and hold-down actuators on a packaging conveyor. The reverse/check valve holds the clamped position if plant air pressure drops, and the differential-pressure drain keeps condensate from carrying into the valves during continuous shifts.
The air supply feeding tool-change cylinders, chip-blow nozzles and spindle-air seals on a CNC machining centre. The 40 um element protects the machine's pneumatic circuit from water and swarf-contaminated plant air, with the bar-scaled square gauge giving the operator a direct setpoint readout.
Size 400 with a 1/2 in port sits in the upper-middle of the GFR range; step up to size 600 or down to size 300 depending on the flow your line needs - we will confirm the flow curve against your demand before you order. The differential-pressure drain on this unit needs no operator attention and no electrical connection; choose a manual drain (code M) if you prefer scheduled draining, or an automatic drain (code A) for a float-operated valve. The 40 um element is the standard grade; specify 5 um (code W) if downstream equipment needs finer filtration. The square gauge here is scaled in bar; MPa and psi scales are also available. PT is the standard thread for this series, with G (BSPP) and NPT as order options - this unit is built with NPT. Brackets are optional; this code omits the bracket.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow 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 line's air demand and we will confirm the flow curve and correct size from the datasheet before you order.
K means a reverse (check) valve is fitted: if the upstream supply fails, the valve holds pressure on the downstream side instead of letting it bleed back. Choose the K version for clamps, chucks or any actuator that must hold position through a supply loss; omit it where that is not needed.
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.