The AirTAC GFR40015F2GK AirTAC Filter Regulator G1/2, psi Gauge 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 AirTAC GFR40015F2GK is a size 400 filter regulator: it removes water and particulate from compressed air and holds downstream pressure at your setpoint in one body. This configuration carries a G1/2 (BSPP) port, the standard 40 um filter element, a differential-pressure drain that bleeds condensate automatically whenever the pressure drop across the element is high enough, and a standard regulator with a 0.15-0.9 MPa (20-130 psi) adjustment range. The embedded square gauge reads in psi, a reverse/check valve is fitted to hold downstream pressure when the supply is lost, and a mounting bracket is included. The polycarbonate bowl is rated with the unit for 1.0 MPa (145 psi) maximum inlet and -5 to 70 C (non-freezing) operation.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of 40 um or 5 um (code W) filtration, differential-pressure, automatic or manual drains, psi, MPa or bar gauge scales, and G or NPT thread options. We confirm flow and other datasheet figures on request - just ask before ordering.
| Model | GFR40015F2GK AirTAC Filter Regulator G1/2, psi Gauge |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (G (BSPP) 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, psi 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) 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) |
Feeds clean, pressure-regulated air to the tool-clamp and chip-clearing circuits of a CNC machining centre, with the check valve holding the clamp setting through a supply dip.
Conditions the air feeding the cylinders on a carton sealing and taping conveyor, keeping moisture out of the valves while the psi gauge gives operators a visible setpoint.
Supplies filtered, regulated air to impact wrenches and nutrunners at an assembly plant workstation, with the bracket mounting the unit at the drop for easy gauge reading.
Size 400 with a G1/2 port sits in the upper half of the GFR range, so step up or down through the 200/300/400/600 sizes according to the air demand of the circuit. Choose the drain to match maintenance access: differential-pressure (this unit) needs no routine attention, automatic drains continuously, and manual drains suit supervised installations. The 40 um element is the standard grade; specify 5 um (code W) where downstream equipment needs finer filtration. This unit's square gauge reads in psi; MPa and bar scales are available, and an external round gauge is optional. Thread is G (BSPP) here, with PT standard and NPT orderable. A bracket is included, and the fitted reverse/check valve holds the downstream setting if the air supply fails.
Flow for the GFR series is published as curves rather than a single rated figure, so we do not quote a number here. Send us your application's air demand 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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes GFR-series flow as performance curves rather than a single rated figure, so we do not state a number here. Tell us your application's air demand and we will confirm the sizing from the datasheet on request before you order.
This configuration uses a differential-pressure drain, which discharges collected condensate automatically once the pressure drop across the 40 um element reaches a threshold, so no routine draining is needed. Automatic (code A) and manual (code M) drains are catalogue options on the GFR series if your installation prefers them.
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.